Sunday, 14 February 2016
Saturday, 31 January 2015
Tuesday, 13 January 2015
Hack any Facebook Account Only in One Minute
Hack any Facebook Account Only in One Minute
Guys..!
In 2015 no one can stop you from Hacking Facebook Account..
It can be Hacked only in one Minute..
For the Sake of Your Privacy DO READ THIS ARTICAL..
__________________________________________________________
Want a proof ..
See This Tutorial on YouTube Below.........
Now Facebook is not so Secure after 10 Years from the Launching of Facebook , Hackers has derived a new method for Hacking any facebook Account
Now you can hack any Facebook Account in only 1 Minute..
*Warning
Do not Hack any Facebook Account for your Personal revange.
It is just made for Security Reasons.
So that parents can have a watch on their children.
*Software Specifications
- Cost : 100 Free of Cost
- Operating System : Any , even on Android
-Size of software : Only 5 Mb
___________________________________________________________
Download it Now ..
Click Below..
Guys..!
In 2015 no one can stop you from Hacking Facebook Account..
It can be Hacked only in one Minute..
For the Sake of Your Privacy DO READ THIS ARTICAL..
__________________________________________________________
Want a proof ..
See This Tutorial on YouTube Below.........
Now Facebook is not so Secure after 10 Years from the Launching of Facebook , Hackers has derived a new method for Hacking any facebook Account
Now you can hack any Facebook Account in only 1 Minute..
*Warning
Do not Hack any Facebook Account for your Personal revange.
It is just made for Security Reasons.
So that parents can have a watch on their children.
*Software Specifications
- Cost : 100 Free of Cost
- Operating System : Any , even on Android
-Size of software : Only 5 Mb
___________________________________________________________
Download it Now ..
Click Below..
Saturday, 10 August 2013
EVOLUTION OF COMPUTER VIRUS
part 1
Like any other field in computer science, viruses have evolved -a great deal indeed- over the years. In the series of press releases which start today, we will look at the origins and evolution of malicious code since it first appeared up to the present.
Going back to the origin of viruses, it was in 1949 that Mathematician John Von Neumann described self-replicating programs which could resemble computer viruses as they are known today. However, it was not until the 60s that we find the predecessor of current viruses. In that decade, a group of programmers developed a game called Core Wars, which could reproduce every time it was run, and even saturate the memory of other players’ computers. The creators of this peculiar game also created the first antivirus, an application named Reeper, which could destroy copies created by Core Wars.
However, it was only in 1983 that one of these programmers announced the existence of Core Wars, which was described the following year in a prestigious scientific magazine: this was actually the starting point of what we call computer viruses today.
At that time, a still young MS-DOS was starting to become the preeminent operating system worldwide. This was a system with great prospects, but still many deficiencies as well, which arose from software developments and the lack of many hardware elements known today. Even like this, this new operating system became the target of a virus in 1986: Brain, a malicious code created in Pakistan which infected boot sectors of disks so that their contents could not be accessed. That year also saw the birth of the first Trojan: an application called PC-Write.
Shortly after, virus writers realized that infecting files could be even more harmful to systems. In 1987, a virus called Suriv-02 appeared, which infected COM files and opened the door to the infamous viruses Jerusalem or Viernes 13. However, the worst was still to come: 1988 set the date when the “Morris worm” appeared, infecting 6,000 computers.
From that date up to 1995 the types of malicious codes that are known today started being developed: the first macro viruses appeared, polymorphic viruses … Some of these even triggered epidemics, such as MichaelAngelo. However, there was an event that changed the virus scenario worldwide: the massive use of the Internet and e-mail. Little by little, viruses started adapting to this new situation until the appearance, in 1999, of Melissa, the first malicious code to cause a worldwide epidemic, opening a new era for computer viruses.
part 2
This second installment of ‘The evolution of viruses’ will look at how malicious code used to spread before use of the Internet and e-mail became as commonplace as it is today, and the main objectives of the creators of those earlier viruses.
Until the worldwide web and e-mail were adopted as a standard means of communication the world over, the main mediums through which viruses spread were floppy disks, removable drives, CDs, etc., containing files that were already infected or with the virus code in an executable boot sector.
When a virus entered a system it could go memory resident, infecting other files as they were opened, or it could start to reproduce immediately, also infecting other files on the system. The virus code could also be triggered by a certain event, for example when the system clock reached a certain date or time. In this case, the virus creator would calculate the time necessary for the virus to spread and then set a date –often with some particular significance- for the virus to activate. In this way, the virus would have an incubation period during which it didn’t visibly affect computers, but just spread from one system to another waiting for ‘D-day’ to launch its payload. This incubation period would be vital to the virus successfully infecting as many computers as possible.
One classic example of a destructive virus that lay low before releasing its payload was CIH, also known as Chernobyl. The most damaging version of this malicious code activated on April 26, when it would try to overwrite the flash-BIOS, the memory which includes the code needed to control PC devices. This virus, which first appeared in June 1998, had a serious impact for over two years and still continues to infect computers today.
Because of the way in which they propagate, these viruses spread very slowly, especially in comparison to the speed of today’s malicious code. Towards the end of the Eighties, for example, the Friday 13th (or Jerusalem) virus needed a long time to actually spread and continued to infect computers for some years. In contrast, experts reckon that in January 2003, SQLSlammer took just ten minutes to cause global communication problems across the Internet.
Notoriety versus stealth
For the most part, in the past, the activation of a malicious code triggered a series of on screen messages or images, or caused sounds to be emitted to catch the user’s attention. Such was the case with the Ping Pong virus, which displayed a ball bouncing from one side of the screen to another. This kind of elaborate display was used by the creator of the virus to gain as much notoriety as possible. Nowadays however, the opposite is the norm, with virus authors trying to make malicious code as discreet as possible, infecting users’ systems without them noticing that anything is amiss.
pat 3
This third installment of ‘The evolution of viruses’ will look at how the Internet and e-mail changed the propagation techniques used by computer viruses.
Internet and e-mail revolutionized communications. However, as expected, virus creators didn’t take long to realize that along with this new means of communication, an excellent way of spreading their creations far and wide had also dawned. Therefore, they quickly changed their aim from infecting a few computers while drawing as much attention to themselves as possible, to damaging as many computers as possible, as quickly as possible. This change in strategy resulted in the first global virus epidemic, which was caused by the Melissa worm.
With the appearance of Melissa, the economic impact of a virus started to become an issue. As a result, users -above all companies- started to become seriously concerned about the consequences of viruses on the security of their computers. This is how users discovered antivirus programs, which started to be installed widely. However, this also brought about a new challenge for virus writers, how to slip past this protection and how to persuade users to run infected files.
The answer to which of these virus strategies was the most effective came in the form of a new worm: Love Letter, which used a simple but effective ruse that could be considered an early type of social engineering. This strategy involves inserting false messages that trick users into thinking that the message includes anything, except a virus. This worm’s bait was simple; it led users to believe that they had received a love letter.
This technique is still the most widely used. However, it is closely followed by another tactic that has been the center of attention lately: exploiting vulnerabilities in commonly used software. This strategy offers a range of possibilities depending on the security hole exploited. The first malicious code to use this method –and quite successfully- were the BubbleBoy and Kakworm worms. These worms exploited a vulnerability in Internet Explorer by inserting HTML code in the body of the e-mail message, which allowed them to run automatically, without needing the user to do a thing.
Vulnerabilities allow many different types of actions to be carried out. For example, they allow viruses to be dropped on computers directly from the Internet -such as the Blaster worm-. In fact, the effects of the virus depend on the vulnerability that the virus author tries to exploit.
part 4
In the early days of computers, there were relatively few PCs likely to contain “sensitive” information, such as credit card numbers or other financial data, and these were generally limited to large companies that had already incorporated computers into working processes.
In any event, information stored in computers was not likely to be compromised, unless the computer was connected to a network through which the information could be transmitted. Of course, there were exceptions to this and there were cases in which hackers perpetrated frauds using data stored in IT systems. However, this was achieved through typical hacking activities, with no viruses involved.
The advent of the Internet however caused virus creators to change their objectives, and, from that moment on, they tried to infect as many computers as possible in the shortest time. Also, the introduction of Internet services -like e-banking or online shopping- brought in another change. Some virus creators started writing malicious codes not to infect computers, but, to steal confidential data associated to those services. Evidently, to achieve this, they needed viruses that could infect many computers silently.
Their malicious labor was finally rewarded with the appearance, in 1986, of a new breed of malicious code generically called “Trojan Horse”, or simply “Trojan”. This first Trojan was called PC-Write and tried to pass itself off as the shareware version of a text processor. When run, the Trojan displayed a functional text processor on screen. The problem was that, while the user wrote, PC-Write deleted and corrupted files on the computers’ hard disk.
After PC-Write, this type of malicious code evolved very quickly to reach the stage of present-day Trojans. Today, many of the people who design Trojans to steal data cannot be considered virus writers but simply thieves who, instead of using blowtorches or dynamite have turned to viruses to commit their crimes. Ldpinch.W or the Bancos or Tolger families of Trojans are examples of this
part 5
Even though none of them can be left aside, some particular fields of computer science have played a more determinant role than others with regard to the evolution of viruses. One of the most influential fields has been the development of programming languages.
These languages are basically a means of communication with computers in order to tell them what to do. Even though each of them has its own specific development and formulation rules, computers in fact understand only one language called "machine code".
Programming languages act as an interpreter between the programmer and the computer. Obviously, the more directly you can communicate with the computer, the better it will understand you, and more complex actions you can ask it to perform.
According to this, programming languages can be divided into "low and high level" languages, depending on whether their syntax is more understandable for programmers or for computers. A "high level" language uses expressions that are easily understandable for most programmers, but not so much for computers. Visual Basic and C are good examples of this type of language.
On the contrary, expressions used by "low level" languages are closer to machine code, but are very difficult to understand for someone who has not been involved in the programming process. One of the most powerful, most widely used examples of this type of language is "assembler".
In order to explain the use of programming languages through virus history, it is necessary to refer to hardware evolution. It is not difficult to understand that an old 8-bit processor does not have the power of modern 64-bit processors, and this of course, has had an impact on the programming languages used.
In this and the next installments of this series, we will look at the different programming languages used by virus creators through computer history:
- Virus antecessors: Core Wars
As was already explained in the first chapter of this series, a group of programs called Core Wars, developed by engineers at an important telecommunications company, are considered the antecessors of current-day viruses. Computer science was still in the early stages and programming languages had hardly developed. For this reason, authors of these proto-viruses used a language that was almost equal to machine code to program them.
Curiously enough, it seems that one of the Core Wars programmers was Robert Thomas Morris, whose son programmed -years later- the "Morris worm". This malicious code became extraordinarily famous since it managed to infect 6,000 computers, an impressive figure for 1988.
- The new gurus of the 8-bits and the assembler language.
The names Altair, IMSAI and Apple in USA and Sinclair, Atari and Commodore in Europe, bring memories of times gone by, when a new generation of computer enthusiasts "fought" to establish their place in the programming world. To be the best, programmers needed to have profound knowledge of machine code and assembler, as interpreters of high-level languages used too much run time. BASIC, for example, was a relatively easy to learn language which allowed users to develop programs simply and quickly. It had however, many limitations.
This caused the appearance of two groups of programmers: those who used assembler and those who turned to high-level languages (BASIC and PASCAL, mainly).
Computer aficionados of the time enjoyed themselves more by programming useful software than malware. However, 1981 saw the birth of what can be considered the first 8-bit virus. Its name was "Elk Cloner", and was programmed in machine code. This virus could infect Apple II systems and displayed a message when it infected a computer.
part 6
Computer viruses evolve in much the same way as in other areas of IT. Two of the most important factors in understanding how viruses have reached their current level are the development of programming languages and the appearance of increasingly powerful hardware.
In 1981, almost at the same time as Elk Kloner (the first virus for 8-bit processors) made its appearance, a new operating system was growing in popularity. Its full name was Microsoft Disk Operating System, although computer buffs throughout the world would soon refer to it simply as DOS.
DOS viruses
The development of MS DOS systems occurred in parallel to the appearance of new, more powerful hardware. Personal computers were gradually establishing themselves as tools that people could use in their everyday lives, and the result was that the number of PCs users grew substantially. Perhaps inevitably, more users also started creating viruses. Gradually, we witnessed the appearance of the first viruses and Trojans for DOS, written in assembler language and demonstrating a degree of skill on the part of their authors.
Far less programmers know assembler language than are familiar with high-level languages that are far easier to learn. Malicious code written in Fortran, Basic, Cobol, C or Pascal soon began to appear. The last two languages, which are well established and very powerful, are the most widely used, particularly in their TurboC and Turbo Pascal versions. This ultimately led to the appearance of “virus families”: that is, viruses that are followed by a vast number of related viruses which are slightly modified forms of the original code.
Other users took the less ‘artistic’ approach of creating destructive viruses that did not require any great knowledge of programming. As a result, batch processing file viruses or BAT viruses began to appear.
Win16 viruses
The development of 16-bit processors led to a new era in computing. The first consequence was the birth of Windows, which, at the time, was just an application to make it easier to handle DOS using a graphic interface.
The structure of Windows 3.xx files is rather difficult to understand, and the assembler language code is very complicated, as a result of which few programmers initially attempted to develop viruses for this platform. But this problem was soon solved thanks to the development of programming tools for high-level languages, above all Visual Basic. This application is so effective that many virus creators adopted it as their ‘daily working tool’. This meant that writing a virus had become a very straightforward task, and viruses soon appeared in their hundreds. This development was accompanied by the appearance of the first Trojans able to steal passwords. As a result, more than 500 variants of the AOL Trojan family -designed to steal personal information from infected computers- were identified.
part 7
This seventh edition on the history of computer viruses will look at how the development of Windows and Visual Basic has influenced the evolution of viruses, as with the development of these, worldwide epidemics also evolved such as the first one caused by Melissa in 1999.
While Windows changed from being an application designed to make DOS easier to manage to a 32-bit platform and operating system in its own right, virus creators went back to using assembler as the main language for programming viruses.
Versions 5 and 6 of Visual Basic (VB) were developed, making it the preferred tool, along with Borland Delphi (the Pascal development for the Windows environment), for Trojan and worm writers. Then, Visual C, a powerful environment developed in C for Windows, was adopted for creating viruses, Trojans and worms. This last type of malware gained unusual strength, taking over almost all other types of viruses. Even though the characteristics of worms have changed over time, they all have the same objective: to spread to as many computers as possible, as quickly as possible.
With time, Visual Basic became extremely popular and Microsoft implemented part of the functionality of this language as an interpreter capable of running script files with a similar syntax.
At the same time as the Win32 platform was implemented, the first script viruses also appeared: malware inside a simple text file. These demonstrated that not only executable files (.EXE and .COM files) could carry viruses. As already seen with BAT viruses, there are also other means of propagation, proving the saying "anything that can be executed directly or through a interpreter can contain malware." To be specific, the first viruses that infected the macros included in Microsoft Office emerged. As a result, Word, Excel, Access and PowerPoint become ways of spreading ‘lethal weapons’, which destroyed information when the user simply opened a document.
Melissa and self-executing worms
The powerful script interpreters in Microsoft Office allowed virus authors to arm their creations with the characteristics of worms. A clear example is Melissa, a Word macro virus with the characteristics of a worm that infects Word 97 and 2000 documents. This worm automatically sends itself out as an attachment to an e-mail message to the first 50 contacts in the Outlook address book on the affected computer. This technique, which has unfortunately become very popular nowadays, was first used in this virus which, in 1999, caused one of the largest epidemics in computer history in just a few days. In fact, companies like Microsoft, Intel or Lucent Technologies had to block their connections to the Internet due to the actions of Melissa.
The technique started by Melissa was developed in 1999 by viruses like VBS/Freelink, which unlike its predecessor sent itself out to all the contacts in the address book on the infected PC. This started a new wave of worms capable of sending themselves out to all the contacts in the Outlook address book on the infected computer. Of these, the worm that most stands out from the rest is VBS/LoveLetter, more commonly known as ‘I love You’, which emerged in May 2000 and caused an epidemic that caused damage estimated at 10,000 million euros. In order to get the user’s attention and help it to spread, this worm sent itself out in an e-mail message with the subject ‘ILOVEYOU’ and an attached file called ‘LOVE-LETTER-FOR-YOU.TXT.VBS’. When the user opened this attachment, the computer was infected.
As well as Melissa, in 1999 another type of virus emerged that also marked a milestone in virus history. In November of that year, VBS/BubbleBoy appeared, a new type of Internet worm written in VB Script. VBS/BubbleBoy was automatically run without the user needing to click on an attached file, as it exploited a vulnerability in Internet Explorer 5 to automatically run when the message was opened or viewed. This worm was followed in 2000 by JS/Kak.Worm, which spread by hiding behind Java Script in the auto-signature in Microsoft Outlook Express, allowing it to infect computers without the user needing to run an attached file. These were the first samples of a series of worms, which were joined later on by worms capable of attacking computers when the user is browsing the Internet.
Like any other field in computer science, viruses have evolved -a great deal indeed- over the years. In the series of press releases which start today, we will look at the origins and evolution of malicious code since it first appeared up to the present.
Going back to the origin of viruses, it was in 1949 that Mathematician John Von Neumann described self-replicating programs which could resemble computer viruses as they are known today. However, it was not until the 60s that we find the predecessor of current viruses. In that decade, a group of programmers developed a game called Core Wars, which could reproduce every time it was run, and even saturate the memory of other players’ computers. The creators of this peculiar game also created the first antivirus, an application named Reeper, which could destroy copies created by Core Wars.
However, it was only in 1983 that one of these programmers announced the existence of Core Wars, which was described the following year in a prestigious scientific magazine: this was actually the starting point of what we call computer viruses today.
At that time, a still young MS-DOS was starting to become the preeminent operating system worldwide. This was a system with great prospects, but still many deficiencies as well, which arose from software developments and the lack of many hardware elements known today. Even like this, this new operating system became the target of a virus in 1986: Brain, a malicious code created in Pakistan which infected boot sectors of disks so that their contents could not be accessed. That year also saw the birth of the first Trojan: an application called PC-Write.
Shortly after, virus writers realized that infecting files could be even more harmful to systems. In 1987, a virus called Suriv-02 appeared, which infected COM files and opened the door to the infamous viruses Jerusalem or Viernes 13. However, the worst was still to come: 1988 set the date when the “Morris worm” appeared, infecting 6,000 computers.
From that date up to 1995 the types of malicious codes that are known today started being developed: the first macro viruses appeared, polymorphic viruses … Some of these even triggered epidemics, such as MichaelAngelo. However, there was an event that changed the virus scenario worldwide: the massive use of the Internet and e-mail. Little by little, viruses started adapting to this new situation until the appearance, in 1999, of Melissa, the first malicious code to cause a worldwide epidemic, opening a new era for computer viruses.
part 2
This second installment of ‘The evolution of viruses’ will look at how malicious code used to spread before use of the Internet and e-mail became as commonplace as it is today, and the main objectives of the creators of those earlier viruses.
Until the worldwide web and e-mail were adopted as a standard means of communication the world over, the main mediums through which viruses spread were floppy disks, removable drives, CDs, etc., containing files that were already infected or with the virus code in an executable boot sector.
When a virus entered a system it could go memory resident, infecting other files as they were opened, or it could start to reproduce immediately, also infecting other files on the system. The virus code could also be triggered by a certain event, for example when the system clock reached a certain date or time. In this case, the virus creator would calculate the time necessary for the virus to spread and then set a date –often with some particular significance- for the virus to activate. In this way, the virus would have an incubation period during which it didn’t visibly affect computers, but just spread from one system to another waiting for ‘D-day’ to launch its payload. This incubation period would be vital to the virus successfully infecting as many computers as possible.
One classic example of a destructive virus that lay low before releasing its payload was CIH, also known as Chernobyl. The most damaging version of this malicious code activated on April 26, when it would try to overwrite the flash-BIOS, the memory which includes the code needed to control PC devices. This virus, which first appeared in June 1998, had a serious impact for over two years and still continues to infect computers today.
Because of the way in which they propagate, these viruses spread very slowly, especially in comparison to the speed of today’s malicious code. Towards the end of the Eighties, for example, the Friday 13th (or Jerusalem) virus needed a long time to actually spread and continued to infect computers for some years. In contrast, experts reckon that in January 2003, SQLSlammer took just ten minutes to cause global communication problems across the Internet.
Notoriety versus stealth
For the most part, in the past, the activation of a malicious code triggered a series of on screen messages or images, or caused sounds to be emitted to catch the user’s attention. Such was the case with the Ping Pong virus, which displayed a ball bouncing from one side of the screen to another. This kind of elaborate display was used by the creator of the virus to gain as much notoriety as possible. Nowadays however, the opposite is the norm, with virus authors trying to make malicious code as discreet as possible, infecting users’ systems without them noticing that anything is amiss.
pat 3
This third installment of ‘The evolution of viruses’ will look at how the Internet and e-mail changed the propagation techniques used by computer viruses.
Internet and e-mail revolutionized communications. However, as expected, virus creators didn’t take long to realize that along with this new means of communication, an excellent way of spreading their creations far and wide had also dawned. Therefore, they quickly changed their aim from infecting a few computers while drawing as much attention to themselves as possible, to damaging as many computers as possible, as quickly as possible. This change in strategy resulted in the first global virus epidemic, which was caused by the Melissa worm.
With the appearance of Melissa, the economic impact of a virus started to become an issue. As a result, users -above all companies- started to become seriously concerned about the consequences of viruses on the security of their computers. This is how users discovered antivirus programs, which started to be installed widely. However, this also brought about a new challenge for virus writers, how to slip past this protection and how to persuade users to run infected files.
The answer to which of these virus strategies was the most effective came in the form of a new worm: Love Letter, which used a simple but effective ruse that could be considered an early type of social engineering. This strategy involves inserting false messages that trick users into thinking that the message includes anything, except a virus. This worm’s bait was simple; it led users to believe that they had received a love letter.
This technique is still the most widely used. However, it is closely followed by another tactic that has been the center of attention lately: exploiting vulnerabilities in commonly used software. This strategy offers a range of possibilities depending on the security hole exploited. The first malicious code to use this method –and quite successfully- were the BubbleBoy and Kakworm worms. These worms exploited a vulnerability in Internet Explorer by inserting HTML code in the body of the e-mail message, which allowed them to run automatically, without needing the user to do a thing.
Vulnerabilities allow many different types of actions to be carried out. For example, they allow viruses to be dropped on computers directly from the Internet -such as the Blaster worm-. In fact, the effects of the virus depend on the vulnerability that the virus author tries to exploit.
part 4
In the early days of computers, there were relatively few PCs likely to contain “sensitive” information, such as credit card numbers or other financial data, and these were generally limited to large companies that had already incorporated computers into working processes.
In any event, information stored in computers was not likely to be compromised, unless the computer was connected to a network through which the information could be transmitted. Of course, there were exceptions to this and there were cases in which hackers perpetrated frauds using data stored in IT systems. However, this was achieved through typical hacking activities, with no viruses involved.
The advent of the Internet however caused virus creators to change their objectives, and, from that moment on, they tried to infect as many computers as possible in the shortest time. Also, the introduction of Internet services -like e-banking or online shopping- brought in another change. Some virus creators started writing malicious codes not to infect computers, but, to steal confidential data associated to those services. Evidently, to achieve this, they needed viruses that could infect many computers silently.
Their malicious labor was finally rewarded with the appearance, in 1986, of a new breed of malicious code generically called “Trojan Horse”, or simply “Trojan”. This first Trojan was called PC-Write and tried to pass itself off as the shareware version of a text processor. When run, the Trojan displayed a functional text processor on screen. The problem was that, while the user wrote, PC-Write deleted and corrupted files on the computers’ hard disk.
After PC-Write, this type of malicious code evolved very quickly to reach the stage of present-day Trojans. Today, many of the people who design Trojans to steal data cannot be considered virus writers but simply thieves who, instead of using blowtorches or dynamite have turned to viruses to commit their crimes. Ldpinch.W or the Bancos or Tolger families of Trojans are examples of this
part 5
Even though none of them can be left aside, some particular fields of computer science have played a more determinant role than others with regard to the evolution of viruses. One of the most influential fields has been the development of programming languages.
These languages are basically a means of communication with computers in order to tell them what to do. Even though each of them has its own specific development and formulation rules, computers in fact understand only one language called "machine code".
Programming languages act as an interpreter between the programmer and the computer. Obviously, the more directly you can communicate with the computer, the better it will understand you, and more complex actions you can ask it to perform.
According to this, programming languages can be divided into "low and high level" languages, depending on whether their syntax is more understandable for programmers or for computers. A "high level" language uses expressions that are easily understandable for most programmers, but not so much for computers. Visual Basic and C are good examples of this type of language.
On the contrary, expressions used by "low level" languages are closer to machine code, but are very difficult to understand for someone who has not been involved in the programming process. One of the most powerful, most widely used examples of this type of language is "assembler".
In order to explain the use of programming languages through virus history, it is necessary to refer to hardware evolution. It is not difficult to understand that an old 8-bit processor does not have the power of modern 64-bit processors, and this of course, has had an impact on the programming languages used.
In this and the next installments of this series, we will look at the different programming languages used by virus creators through computer history:
- Virus antecessors: Core Wars
As was already explained in the first chapter of this series, a group of programs called Core Wars, developed by engineers at an important telecommunications company, are considered the antecessors of current-day viruses. Computer science was still in the early stages and programming languages had hardly developed. For this reason, authors of these proto-viruses used a language that was almost equal to machine code to program them.
Curiously enough, it seems that one of the Core Wars programmers was Robert Thomas Morris, whose son programmed -years later- the "Morris worm". This malicious code became extraordinarily famous since it managed to infect 6,000 computers, an impressive figure for 1988.
- The new gurus of the 8-bits and the assembler language.
The names Altair, IMSAI and Apple in USA and Sinclair, Atari and Commodore in Europe, bring memories of times gone by, when a new generation of computer enthusiasts "fought" to establish their place in the programming world. To be the best, programmers needed to have profound knowledge of machine code and assembler, as interpreters of high-level languages used too much run time. BASIC, for example, was a relatively easy to learn language which allowed users to develop programs simply and quickly. It had however, many limitations.
This caused the appearance of two groups of programmers: those who used assembler and those who turned to high-level languages (BASIC and PASCAL, mainly).
Computer aficionados of the time enjoyed themselves more by programming useful software than malware. However, 1981 saw the birth of what can be considered the first 8-bit virus. Its name was "Elk Cloner", and was programmed in machine code. This virus could infect Apple II systems and displayed a message when it infected a computer.
part 6
Computer viruses evolve in much the same way as in other areas of IT. Two of the most important factors in understanding how viruses have reached their current level are the development of programming languages and the appearance of increasingly powerful hardware.
In 1981, almost at the same time as Elk Kloner (the first virus for 8-bit processors) made its appearance, a new operating system was growing in popularity. Its full name was Microsoft Disk Operating System, although computer buffs throughout the world would soon refer to it simply as DOS.
DOS viruses
The development of MS DOS systems occurred in parallel to the appearance of new, more powerful hardware. Personal computers were gradually establishing themselves as tools that people could use in their everyday lives, and the result was that the number of PCs users grew substantially. Perhaps inevitably, more users also started creating viruses. Gradually, we witnessed the appearance of the first viruses and Trojans for DOS, written in assembler language and demonstrating a degree of skill on the part of their authors.
Far less programmers know assembler language than are familiar with high-level languages that are far easier to learn. Malicious code written in Fortran, Basic, Cobol, C or Pascal soon began to appear. The last two languages, which are well established and very powerful, are the most widely used, particularly in their TurboC and Turbo Pascal versions. This ultimately led to the appearance of “virus families”: that is, viruses that are followed by a vast number of related viruses which are slightly modified forms of the original code.
Other users took the less ‘artistic’ approach of creating destructive viruses that did not require any great knowledge of programming. As a result, batch processing file viruses or BAT viruses began to appear.
Win16 viruses
The development of 16-bit processors led to a new era in computing. The first consequence was the birth of Windows, which, at the time, was just an application to make it easier to handle DOS using a graphic interface.
The structure of Windows 3.xx files is rather difficult to understand, and the assembler language code is very complicated, as a result of which few programmers initially attempted to develop viruses for this platform. But this problem was soon solved thanks to the development of programming tools for high-level languages, above all Visual Basic. This application is so effective that many virus creators adopted it as their ‘daily working tool’. This meant that writing a virus had become a very straightforward task, and viruses soon appeared in their hundreds. This development was accompanied by the appearance of the first Trojans able to steal passwords. As a result, more than 500 variants of the AOL Trojan family -designed to steal personal information from infected computers- were identified.
part 7
This seventh edition on the history of computer viruses will look at how the development of Windows and Visual Basic has influenced the evolution of viruses, as with the development of these, worldwide epidemics also evolved such as the first one caused by Melissa in 1999.
While Windows changed from being an application designed to make DOS easier to manage to a 32-bit platform and operating system in its own right, virus creators went back to using assembler as the main language for programming viruses.
Versions 5 and 6 of Visual Basic (VB) were developed, making it the preferred tool, along with Borland Delphi (the Pascal development for the Windows environment), for Trojan and worm writers. Then, Visual C, a powerful environment developed in C for Windows, was adopted for creating viruses, Trojans and worms. This last type of malware gained unusual strength, taking over almost all other types of viruses. Even though the characteristics of worms have changed over time, they all have the same objective: to spread to as many computers as possible, as quickly as possible.
With time, Visual Basic became extremely popular and Microsoft implemented part of the functionality of this language as an interpreter capable of running script files with a similar syntax.
At the same time as the Win32 platform was implemented, the first script viruses also appeared: malware inside a simple text file. These demonstrated that not only executable files (.EXE and .COM files) could carry viruses. As already seen with BAT viruses, there are also other means of propagation, proving the saying "anything that can be executed directly or through a interpreter can contain malware." To be specific, the first viruses that infected the macros included in Microsoft Office emerged. As a result, Word, Excel, Access and PowerPoint become ways of spreading ‘lethal weapons’, which destroyed information when the user simply opened a document.
Melissa and self-executing worms
The powerful script interpreters in Microsoft Office allowed virus authors to arm their creations with the characteristics of worms. A clear example is Melissa, a Word macro virus with the characteristics of a worm that infects Word 97 and 2000 documents. This worm automatically sends itself out as an attachment to an e-mail message to the first 50 contacts in the Outlook address book on the affected computer. This technique, which has unfortunately become very popular nowadays, was first used in this virus which, in 1999, caused one of the largest epidemics in computer history in just a few days. In fact, companies like Microsoft, Intel or Lucent Technologies had to block their connections to the Internet due to the actions of Melissa.
The technique started by Melissa was developed in 1999 by viruses like VBS/Freelink, which unlike its predecessor sent itself out to all the contacts in the address book on the infected PC. This started a new wave of worms capable of sending themselves out to all the contacts in the Outlook address book on the infected computer. Of these, the worm that most stands out from the rest is VBS/LoveLetter, more commonly known as ‘I love You’, which emerged in May 2000 and caused an epidemic that caused damage estimated at 10,000 million euros. In order to get the user’s attention and help it to spread, this worm sent itself out in an e-mail message with the subject ‘ILOVEYOU’ and an attached file called ‘LOVE-LETTER-FOR-YOU.TXT.VBS’. When the user opened this attachment, the computer was infected.
As well as Melissa, in 1999 another type of virus emerged that also marked a milestone in virus history. In November of that year, VBS/BubbleBoy appeared, a new type of Internet worm written in VB Script. VBS/BubbleBoy was automatically run without the user needing to click on an attached file, as it exploited a vulnerability in Internet Explorer 5 to automatically run when the message was opened or viewed. This worm was followed in 2000 by JS/Kak.Worm, which spread by hiding behind Java Script in the auto-signature in Microsoft Outlook Express, allowing it to infect computers without the user needing to run an attached file. These were the first samples of a series of worms, which were joined later on by worms capable of attacking computers when the user is browsing the Internet.
How to clear Bios info
How to clear Bios info
READ EVEYTHING BEFORE YOU USE ANY METHOD LISTED BELOW
Basic BIOS password crack - works 9.9 times out of ten
This is a password hack but it clears the BIOS such that the next time you start the PC, the CMOS does not ask for any password. Now if you are able to bring the DOS prompt up, then you will be able to change the BIOS setting to the default. To clear the CMOS do the following:
Get DOS prompt and type:
DEBUG hit enter
-o 70 2e hit enter
-o 71 ff hit enter
-q hit enter
exit hit enter
Restart the computer. It works on most versions of the AWARD BIOS.
Accessing information on the hard disk
When you turn on the host machine, enter the CMOS setup menu (usually you have to press F2, or DEL, or CTRL+ALT+S during the boot sequence) and go to STANDARD CMOS SETUP, and set the channel to which you have put the hard disk as TYPE=Auto, MODE=AUTO, then SAVE & EXIT SETUP. Now you have access to the hard disk.
Standard BIOS backdoor passwords
The first, less invasive, attempt to bypass a BIOS password is to try on of these standard manufacturer's backdoor passwords:
AWARD BIOS
AWARD SW, AWARD_SW, Award SW, AWARD PW, _award, awkward, J64, j256, j262, j332, j322, 01322222, 589589, 589721, 595595, 598598, HLT, SER, SKY_FOX, aLLy, aLLY, Condo, CONCAT, TTPTHA, aPAf, HLT, KDD, ZBAAACA, ZAAADA, ZJAAADC, djonet, %����� �p������%, %������ �p������%
AMI BIOS
AMI, A.M.I., AMI SW, AMI_SW, BIOS, PASSWORD, HEWITT RAND, Oder
Other passwords you may try (for AMI/AWARD or other BIOSes)
LKWPETER, lkwpeter, BIOSTAR, biostar, BIOSSTAR, biosstar, ALFAROME, Syxz, Wodj
Note that the key associated to "_" in the US keyboard corresponds to "?" in some European keyboards (such as Italian and German ones), so -- for example -- you should type AWARD?SW when using those keyboards. Also remember that passwords are Case Sensitive. The last two passwords in the AWARD BIOS list are in Russian.
Flashing BIOS via software
If you have access to the computer when it's turned on, you could try one of those programs that remove the password from the BIOS, by invalidating its memory.
However, it might happen you don't have one of those programs when you have access to the computer, so you'd better learn how to do manually what they do. You can reset the BIOS to its default values using the MS-DOS tool DEBUG (type DEBUG at the command prompt. You'd better do it in pure MS-DOS mode, not from a MS-DOS shell window in Windows). Once you are in the debug environment enter the following commands:
AMI/AWARD BIOS
O 70 17
O 71 17
Q
PHOENIX BIOS
O 70 FF
O 71 17
Q
GENERIC
Invalidates CMOS RAM.
Should work on all AT motherboards
(XT motherboards don't have CMOS)
O 70 2E
O 71 FF
Q
Note that the first letter is a "O" not the number "0". The numbers which follow are two bytes in hex format.
Flashing BIOS via hardware
If you can't access the computer when it's on, and the standard backdoor passwords didn't work, you'll have to flash the BIOS via hardware. Please read the important notes at the end of this section before to try any of these methods.
Using the jumpers
The canonical way to flash the BIOS via hardware is to plug, unplug, or switch a jumper on the motherboard (for "switching a jumper" I mean that you find a jumper that joins the central pin and a side pin of a group of three pins, you should then unplug the jumper and then plug it to the central pin and to the pin on the opposite side, so if the jumper is normally on position 1-2, you have to put it on position 2-3, or vice versa). This jumper is not always located near to the BIOS, but could be anywhere on the motherboard.
To find the correct jumper you should read the motherboard's manual.
Once you've located the correct jumper, switch it (or plug or unplug it, depending from what the manual says) while the computer is turned OFF. Wait a couple of seconds then put the jumper back to its original position. In some motherboards it may happen that the computer will automatically turn itself on, after flashing the BIOS. In this case, turn it off, and put the jumper back to its original position, then turn it on again. Other motherboards require you turn the computer on for a few seconds to flash the BIOS.
If you don't have the motherboard's manual, you'll have to "brute force" it... trying out all the jumpers. In this case, try first the isolated ones (not in a group), the ones near to the BIOS, and the ones you can switch (as I explained before). If all them fail, try all the others. However, you must modify the status of only one jumper per attempt, otherwise you could damage the motherboard (since you don't know what the jumper you modified is actually meant for). If the password request screen still appear, try another one.
If after flashing the BIOS, the computer won't boot when you turn it on, turn it off, and wait some seconds before to retry.
Removing the battery
If you can't find the jumper to flash the BIOS or if such jumper doesn't exist, you can remove the battery that keeps the BIOS memory alive. It's a button-size battery somewhere on the motherboard (on elder computers the battery could be a small, typically blue, cylinder soldered to the motherboard, but usually has a jumper on its side to disconnect it, otherwise you'll have to unsolder it and then solder it back). Take it away for 15-30 minutes or more, then put it back and the data contained into the BIOS memory should be volatilized. I'd suggest you to remove it for about one hour to be sure, because if you put it back when the data aren't erased yet you'll have to wait more time, as you've never removed it. If at first it doesn't work, try to remove the battery overnight.
Important note: in laptop and notebooks you don't have to remove the computer's power batteries (which would be useless), but you should open your computer and remove the CMOS battery from the motherboard.
Short-circuiting the chip
Another way to clear the CMOS RAM is to reset it by short circuiting two pins of the BIOS chip for a few seconds. You can do that with a small piece of electric wire or with a bent paper clip. Always make sure that the computer is turned OFF before to try this operation.
Here is a list of EPROM chips that are commonly used in the BIOS industry. You may find similar chips with different names if they are compatible chips made by another brand. If you find the BIOS chip you are working on matches with one of the following you can try to short-circuit the appropriate pins. Be careful, because this operation may damage the chip.
CHIPS P82C206 (square)
Short together pins 12 and 32 (the first and the last pins on the bottom edge of the chip) or pins 74 and 75 (the two pins on the upper left corner).
gnd
74
|__________________
5v 75--| |
| |
| |
| CHIPS |
1 * | |
| P82C206 |
| |
| |
|___________________|
| |
| gnd | 5v
12 32
OPTi F82C206 (rectangular)
Short together pins 3 and 26 (third pin from left side and fifth pin from right side on the bottom edge).
80 51
|______________|
81 -| |- 50
| |
| |
| OPTi |
| |
| F82C206 |
| |
100-|________________|-31
|| | |
1 || | | 30
3 26
Dallas DS1287, DS1287A
Benchmarq bp3287MT, bq3287AMT
The Dallas DS1287 and DS1287A, and the compatible Benchmarq bp3287MT and bq3287AMT chips have a built-in battery. This battery should last up to ten years. Any motherboard using these chips should not have an additional battery (this means you can't flash the BIOS by removing a battery). When the battery fails, the RTC chip would be replaced.
CMOS RAM can be cleared on the 1287A and 3287AMT chips by shorting pins 12 and 21.
The 1287 (and 3287MT) differ from the 1287A in that the CMOS RAM can't be cleared. If there is a problem such as a forgotten password, the chip must be replaced. (In this case it is recommended to replace the 1287 with a 1287A). Also the Dallas 12887 and 12887A are similar but contain twice as much CMOS RAM storage.
__________
1 -| * U |- 24 5v
2 -| |- 23
3 -| |- 22
4 -| |- 21 RCL (RAM Clear)
5 -| |- 20
6 -| |- 19
7 -| |- 18
8 -| |- 17
9 -| |- 16
10 -| |- 15
11 -| |- 14
gnd 12 -|__________|- 13
NOTE: Although these are 24-pin chips,
the Dallas chips may be missing 5 pins,
these are unused pins.
Most chips have unused pins,
though usually they are still present.
Dallas DS12885S
Benchmarq bq3258S
Hitachi HD146818AP
Samsung KS82C6818A
This is a rectangular 24-pin DIP chip, usually in a socket. The number on the chip should end in 6818.
Although this chip is pin-compatible with the Dallas 1287/1287A, there is no built-in battery.
Short together pins 12 and 24.
5v
24 20 13
|___________|____________________|
| |
| DALLAS |
|> |
| DS12885S |
| |
|__________________________________|
| |
1 12
gnd
Motorola MC146818AP
Short pins 12 and 24. These are the pins on diagonally opposite corners - lower left and upper right. You might also try pins 12 and 20.
__________
1 -| * U |- 24 5v
2 -| |- 23
3 -| |- 22
4 -| |- 21
5 -| |- 20
6 -| |- 19
7 -| |- 18
8 -| |- 17
9 -| |- 16
10 -| |- 15
11 -| |- 14
gnd 12 -|__________|- 13
Replacing the chip
If nothing works, you could replace the existing BIOS chip with a new one you can buy from your specialized electronic shop or your computer supplier. It's a quick operation if the chip is inserted on a base and not soldered to the motherboard, otherwise you'll have to unsolder it and then put the new one. In this case would be more convenient to solder a base on which you'll then plug the new chip, in the eventuality that you'll have to change it again. If you can't find the BIOS chip specifically made for your motherboard, you should buy one of the same type (probably one of the ones shown above) and look in your motherboard manufacturer's website to see if there's the BIOS image to download. Then you should copy that image on the chip you bought with an EPROM programmer.
Important
Whether is the method you use, when you flash the BIOS not only the password, but also all the other configuration data will be reset to the factory defaults, so when you are booting for the first time after a BIOS flash, you should enter the CMOS configuration menu (as explained before) and fix up some things.
Also, when you boot Windows, it may happen that it finds some new device, because of the new configuration of the BIOS, in this case you'll probably need the Windows installation CD because Windows may ask you for some external files. If Windows doesn't see the CD-ROM try to eject and re-insert the CD-ROM again. If Windows can't find the CD-ROM drive and you set it properly from the BIOS config, just reboot with the reset key, and in the next run Windows should find it. However most files needed by the system while installing new hardware could also be found in C:WINDOWS, C:WINDOWSSYSTEM, or C:WINDOWSINF .
Key Disk for Toshiba laptops
Some Toshiba notebooks allow to bypass BIOS by inserting a "key-disk" in the floppy disk drive while booting. To create a Toshiba Keydisk, take a 720Kb or 1.44Mb floppy disk, format it (if it's not formatted yet), then use a hex editor such as Hex Workshop (***.bpsoft.com/downloads/index.html) to change the first five bytes of the second sector (the one after the boot sector) and set them to 4B 45 59 00 00 (note that the first three bytes are the ASCII for "KEY" followed by two zeroes). Once you have created the key disk put it into the notebook's drive and turn it on, then push the reset button and when asked for password, press Enter. You will be asked to Set Password again. Press Y and Enter. You'll enter the BIOS configuration where you can set a new password.
Key protected cases
A final note about those old computers (up to 486 and early Pentiums) protected with a key that prevented the use of the mouse and the keyboard or the power button. All you have to do with them is to follow the wires connected to the key hole, locate the jumper to which they are connected and unplug it.
READ EVEYTHING BEFORE YOU USE ANY METHOD LISTED BELOW
Basic BIOS password crack - works 9.9 times out of ten
This is a password hack but it clears the BIOS such that the next time you start the PC, the CMOS does not ask for any password. Now if you are able to bring the DOS prompt up, then you will be able to change the BIOS setting to the default. To clear the CMOS do the following:
Get DOS prompt and type:
DEBUG hit enter
-o 70 2e hit enter
-o 71 ff hit enter
-q hit enter
exit hit enter
Restart the computer. It works on most versions of the AWARD BIOS.
Accessing information on the hard disk
When you turn on the host machine, enter the CMOS setup menu (usually you have to press F2, or DEL, or CTRL+ALT+S during the boot sequence) and go to STANDARD CMOS SETUP, and set the channel to which you have put the hard disk as TYPE=Auto, MODE=AUTO, then SAVE & EXIT SETUP. Now you have access to the hard disk.
Standard BIOS backdoor passwords
The first, less invasive, attempt to bypass a BIOS password is to try on of these standard manufacturer's backdoor passwords:
AWARD BIOS
AWARD SW, AWARD_SW, Award SW, AWARD PW, _award, awkward, J64, j256, j262, j332, j322, 01322222, 589589, 589721, 595595, 598598, HLT, SER, SKY_FOX, aLLy, aLLY, Condo, CONCAT, TTPTHA, aPAf, HLT, KDD, ZBAAACA, ZAAADA, ZJAAADC, djonet, %����� �p������%, %������ �p������%
AMI BIOS
AMI, A.M.I., AMI SW, AMI_SW, BIOS, PASSWORD, HEWITT RAND, Oder
Other passwords you may try (for AMI/AWARD or other BIOSes)
LKWPETER, lkwpeter, BIOSTAR, biostar, BIOSSTAR, biosstar, ALFAROME, Syxz, Wodj
Note that the key associated to "_" in the US keyboard corresponds to "?" in some European keyboards (such as Italian and German ones), so -- for example -- you should type AWARD?SW when using those keyboards. Also remember that passwords are Case Sensitive. The last two passwords in the AWARD BIOS list are in Russian.
Flashing BIOS via software
If you have access to the computer when it's turned on, you could try one of those programs that remove the password from the BIOS, by invalidating its memory.
However, it might happen you don't have one of those programs when you have access to the computer, so you'd better learn how to do manually what they do. You can reset the BIOS to its default values using the MS-DOS tool DEBUG (type DEBUG at the command prompt. You'd better do it in pure MS-DOS mode, not from a MS-DOS shell window in Windows). Once you are in the debug environment enter the following commands:
AMI/AWARD BIOS
O 70 17
O 71 17
Q
PHOENIX BIOS
O 70 FF
O 71 17
Q
GENERIC
Invalidates CMOS RAM.
Should work on all AT motherboards
(XT motherboards don't have CMOS)
O 70 2E
O 71 FF
Q
Note that the first letter is a "O" not the number "0". The numbers which follow are two bytes in hex format.
Flashing BIOS via hardware
If you can't access the computer when it's on, and the standard backdoor passwords didn't work, you'll have to flash the BIOS via hardware. Please read the important notes at the end of this section before to try any of these methods.
Using the jumpers
The canonical way to flash the BIOS via hardware is to plug, unplug, or switch a jumper on the motherboard (for "switching a jumper" I mean that you find a jumper that joins the central pin and a side pin of a group of three pins, you should then unplug the jumper and then plug it to the central pin and to the pin on the opposite side, so if the jumper is normally on position 1-2, you have to put it on position 2-3, or vice versa). This jumper is not always located near to the BIOS, but could be anywhere on the motherboard.
To find the correct jumper you should read the motherboard's manual.
Once you've located the correct jumper, switch it (or plug or unplug it, depending from what the manual says) while the computer is turned OFF. Wait a couple of seconds then put the jumper back to its original position. In some motherboards it may happen that the computer will automatically turn itself on, after flashing the BIOS. In this case, turn it off, and put the jumper back to its original position, then turn it on again. Other motherboards require you turn the computer on for a few seconds to flash the BIOS.
If you don't have the motherboard's manual, you'll have to "brute force" it... trying out all the jumpers. In this case, try first the isolated ones (not in a group), the ones near to the BIOS, and the ones you can switch (as I explained before). If all them fail, try all the others. However, you must modify the status of only one jumper per attempt, otherwise you could damage the motherboard (since you don't know what the jumper you modified is actually meant for). If the password request screen still appear, try another one.
If after flashing the BIOS, the computer won't boot when you turn it on, turn it off, and wait some seconds before to retry.
Removing the battery
If you can't find the jumper to flash the BIOS or if such jumper doesn't exist, you can remove the battery that keeps the BIOS memory alive. It's a button-size battery somewhere on the motherboard (on elder computers the battery could be a small, typically blue, cylinder soldered to the motherboard, but usually has a jumper on its side to disconnect it, otherwise you'll have to unsolder it and then solder it back). Take it away for 15-30 minutes or more, then put it back and the data contained into the BIOS memory should be volatilized. I'd suggest you to remove it for about one hour to be sure, because if you put it back when the data aren't erased yet you'll have to wait more time, as you've never removed it. If at first it doesn't work, try to remove the battery overnight.
Important note: in laptop and notebooks you don't have to remove the computer's power batteries (which would be useless), but you should open your computer and remove the CMOS battery from the motherboard.
Short-circuiting the chip
Another way to clear the CMOS RAM is to reset it by short circuiting two pins of the BIOS chip for a few seconds. You can do that with a small piece of electric wire or with a bent paper clip. Always make sure that the computer is turned OFF before to try this operation.
Here is a list of EPROM chips that are commonly used in the BIOS industry. You may find similar chips with different names if they are compatible chips made by another brand. If you find the BIOS chip you are working on matches with one of the following you can try to short-circuit the appropriate pins. Be careful, because this operation may damage the chip.
CHIPS P82C206 (square)
Short together pins 12 and 32 (the first and the last pins on the bottom edge of the chip) or pins 74 and 75 (the two pins on the upper left corner).
gnd
74
|__________________
5v 75--| |
| |
| |
| CHIPS |
1 * | |
| P82C206 |
| |
| |
|___________________|
| |
| gnd | 5v
12 32
OPTi F82C206 (rectangular)
Short together pins 3 and 26 (third pin from left side and fifth pin from right side on the bottom edge).
80 51
|______________|
81 -| |- 50
| |
| |
| OPTi |
| |
| F82C206 |
| |
100-|________________|-31
|| | |
1 || | | 30
3 26
Dallas DS1287, DS1287A
Benchmarq bp3287MT, bq3287AMT
The Dallas DS1287 and DS1287A, and the compatible Benchmarq bp3287MT and bq3287AMT chips have a built-in battery. This battery should last up to ten years. Any motherboard using these chips should not have an additional battery (this means you can't flash the BIOS by removing a battery). When the battery fails, the RTC chip would be replaced.
CMOS RAM can be cleared on the 1287A and 3287AMT chips by shorting pins 12 and 21.
The 1287 (and 3287MT) differ from the 1287A in that the CMOS RAM can't be cleared. If there is a problem such as a forgotten password, the chip must be replaced. (In this case it is recommended to replace the 1287 with a 1287A). Also the Dallas 12887 and 12887A are similar but contain twice as much CMOS RAM storage.
__________
1 -| * U |- 24 5v
2 -| |- 23
3 -| |- 22
4 -| |- 21 RCL (RAM Clear)
5 -| |- 20
6 -| |- 19
7 -| |- 18
8 -| |- 17
9 -| |- 16
10 -| |- 15
11 -| |- 14
gnd 12 -|__________|- 13
NOTE: Although these are 24-pin chips,
the Dallas chips may be missing 5 pins,
these are unused pins.
Most chips have unused pins,
though usually they are still present.
Dallas DS12885S
Benchmarq bq3258S
Hitachi HD146818AP
Samsung KS82C6818A
This is a rectangular 24-pin DIP chip, usually in a socket. The number on the chip should end in 6818.
Although this chip is pin-compatible with the Dallas 1287/1287A, there is no built-in battery.
Short together pins 12 and 24.
5v
24 20 13
|___________|____________________|
| |
| DALLAS |
|> |
| DS12885S |
| |
|__________________________________|
| |
1 12
gnd
Motorola MC146818AP
Short pins 12 and 24. These are the pins on diagonally opposite corners - lower left and upper right. You might also try pins 12 and 20.
__________
1 -| * U |- 24 5v
2 -| |- 23
3 -| |- 22
4 -| |- 21
5 -| |- 20
6 -| |- 19
7 -| |- 18
8 -| |- 17
9 -| |- 16
10 -| |- 15
11 -| |- 14
gnd 12 -|__________|- 13
Replacing the chip
If nothing works, you could replace the existing BIOS chip with a new one you can buy from your specialized electronic shop or your computer supplier. It's a quick operation if the chip is inserted on a base and not soldered to the motherboard, otherwise you'll have to unsolder it and then put the new one. In this case would be more convenient to solder a base on which you'll then plug the new chip, in the eventuality that you'll have to change it again. If you can't find the BIOS chip specifically made for your motherboard, you should buy one of the same type (probably one of the ones shown above) and look in your motherboard manufacturer's website to see if there's the BIOS image to download. Then you should copy that image on the chip you bought with an EPROM programmer.
Important
Whether is the method you use, when you flash the BIOS not only the password, but also all the other configuration data will be reset to the factory defaults, so when you are booting for the first time after a BIOS flash, you should enter the CMOS configuration menu (as explained before) and fix up some things.
Also, when you boot Windows, it may happen that it finds some new device, because of the new configuration of the BIOS, in this case you'll probably need the Windows installation CD because Windows may ask you for some external files. If Windows doesn't see the CD-ROM try to eject and re-insert the CD-ROM again. If Windows can't find the CD-ROM drive and you set it properly from the BIOS config, just reboot with the reset key, and in the next run Windows should find it. However most files needed by the system while installing new hardware could also be found in C:WINDOWS, C:WINDOWSSYSTEM, or C:WINDOWSINF .
Key Disk for Toshiba laptops
Some Toshiba notebooks allow to bypass BIOS by inserting a "key-disk" in the floppy disk drive while booting. To create a Toshiba Keydisk, take a 720Kb or 1.44Mb floppy disk, format it (if it's not formatted yet), then use a hex editor such as Hex Workshop (***.bpsoft.com/downloads/index.html) to change the first five bytes of the second sector (the one after the boot sector) and set them to 4B 45 59 00 00 (note that the first three bytes are the ASCII for "KEY" followed by two zeroes). Once you have created the key disk put it into the notebook's drive and turn it on, then push the reset button and when asked for password, press Enter. You will be asked to Set Password again. Press Y and Enter. You'll enter the BIOS configuration where you can set a new password.
Key protected cases
A final note about those old computers (up to 486 and early Pentiums) protected with a key that prevented the use of the mouse and the keyboard or the power button. All you have to do with them is to follow the wires connected to the key hole, locate the jumper to which they are connected and unplug it.
How to Download-Upload Files from email
How to Download-Upload Files from email
This post will teach u how to send big files to email
This technic is really a newly powerfull way of downloading movies games... Nothing to worry about the fu***** deleters and all the jerks!
Enought bullshit lets get down to buisness:
First of all u need to have a big mail box. here are the one which we can cover. click on the icon to go to the website
• Gmail (Google mail)
• Storage space - 1GB
• Maximum attachment size - 10MB
Image
www.gmail.com
• Walla! mail (the best)
• Storage space - 1GB
• Maximum attachment size - 7MB
Image
www.walla.com
• Spymac Mail
• Storage space - 1GB
• Maximum attachment size - 10MB
Image
www.spymac.com
• Unitedemailsystems
• Storage space - 3GB
• Maximum attachment size - 10MB
Image
www.unitedemailsystems.com
• Xasamail
• Storage space - 2GB
• Maximum attachment size - 10MB
Image
www.xasamail.com
• Omnilect Mail
• Storage space - 2GB
• Maximum attachment size - 7MB
Image
www.omnilect.com
------------------------------------------------------------
Image
Then download the software called peer to mail:
http://dw.com.com/redir?pid=10351095&merid=72949&mfgid=72949&lop=link&edId=3&siteId=4&oId=3002-2196_4-10351095&ontId=2196&destUrl=http%3A%2F%2Fwww.peer2mail.com%2FP2MSetup.exe
official website:
http://www.peer2mail.com
--------------------------------------------------------------
Next step : configurate the soft
go in settings > SMTP server setting
and give an smtp adress that u know
Ex: smtp.laposte.net
user : HULK
pass: ******
Once configurated u don't need to touch it for the rest pf ur upload
Image
This is a critical step, if u are experimenting any pb of connexion this is were u need to have a look:
This is possible that temporaly ur internet provider dont allow u to use other smtp adress than his. So use it
ie:
smtp.free.fr
smtp.wanadoo.fr
(these are french one I don't know of which one u are using)
...
If u are experimenting any pb it is better to desactivate ur antivirus (the scanning mail option)
Image
----------------------------------------------------------
Image
1 - Click on Splint/Send File.
2 - Click on the icon (choose a file to send.....).
3 - select the archive that u want to upload it.
4 - type the address of ur account (email).
5 - It determines the size of the parts that the archive will be divided ( take a look at the max size used by ur mail) i advise u to put a size of 6MB.
6 - It determines the type of sending. "send via smtp server"
After all that, press OK.
===========
press the selected button in the figure:
Image
===========
After all the parts have been sent,go to ur account (email) and confirms, then u have to bring the Encrypted password follows the example below:
Image
===========
Always give the following information to the users:
follows the example below:
Email: GMail
Login: zezão
Password: |/kjds42d4sd24 \|
remmember:
- only Encrypted Password, never sends ur true password
--------------------------------------------------
Be careful : never post ur coordinates without having previously verifyed the content in the mailbox
sometimes peer2mail tells u that evrything is sent but It can happens that nothing is sent
---------------------------------------------------------------------------------------------------------
U want to download games and movies with a good speed ( thats what we all here for!)
So here is an easy way to download large files from mailbox
----------------------------------------------------
first download peer to mail
Image
official website:
http://www.peer2mail.com
----------------------------------------------------
Open it and go to the browse tab
---------------------------------------------------
then take the coordinates of the film/game u want to download
in this tutorial i'll use the film mulan :
mail: walla.com
login: dragon_mushu
pass: <(/++EiJPy)>
--------------------------------------------------
U noticed that the mail used is walla.com
so go to www.walla.com with the adress bar or with the prerecorded website (see picture)
Image
login with:
"dragon_mushu" & "<(/++EiJPy)>"
Image
----------------------------------------------------
go into the inbox then click on this icon:
Image
this wil do this:
Image
after uve retrieve all the segment click on "download"
------------------------------------------------------
If everithing is fine the movie will be merge automatically
and u won't need to care about the segments
------------------------------------------------------
If u look for a place to share/download movies/games using peer2mail just go to the peer2mail website www.peer2mail.com. Then go to the forum and click on "peer2mail related websites".
here is the direct link (may not work)
http://www.peer2mail.com/forums/viewforum.php?f=13
----------------------------------------------------------------------
Here u are now u should be an expert on peer2mail!!!
-----------------------------------------------------------------------------------------------------------------
Peer2Mail is the first software that let you store and share files on any web-mail account. If you have a web mail account with large storage space, you can use P2M to store files on it. Web-mail providers such as Gmail (Google Mail), Walla!, Yahoo and more, provide storage space that ranges from 100MB to 3GB.
P2M splits the file you want to share/store zips and encrypts it. P2M then sends the file segments one by one to your account. Once P2M uploaded all file segments, you can download them and use P2M to merge the segments back to the original file.
Sending a File
In order to send a file to an email account, Peer2Mail needs to split it into segments. Web-mail providers limit the size of an email attachment usually to a nominal 10Megs, but due to the size increase resulting from transport encodings, the limit works out to be a few MB less (Usually 7MB). Use the following dialog to prepare the file before sending:
* File Name - The file/s you want to send. You can use the Browse button to select a single or multiple files.
* Mail To - The recipients who will receive the file (Web-mail account). When using Direct Send you may enter only one email address. If you are sending Via MAPI then you can enter as many recipients as you like; Use the Recipients button to easily add email address separated by semi colon (icon_wink.gif.
* Optional Encryption Password - P2M automatically encrypts each segment to protect you privacy, however you can set a password (key) for the encryption to maximize the privacy. You will need this password when you merge the segments back.
* Segment Size - P2M splits the file into segments. Here you can determine the segment size, most of the web-mail providers limit the attachment size to a nominal 10Megs, but due to the size increase resulting from transport encodings, the limit works out to be a few MB less (Usually 7MB). It is recommended to test your web-mail provider for the size of an attachment it can receive.
Send Method -
o Direct Send - P2M has a built in SMTP component that sends the segments directly to the web-mail providers. You don't need to enter your ISP details in order to use P2M. If you are using this feature please make sure you enter a value in the 'From Email Address' because some web-mail providers reject email messages where there is no 'From' address. You can even enter a fake mail address.
o Send Via MAPI - P2M can send the segments using MAPI (Usually your outlook client). When you use this option P2M will split the files and move the sending responsibility to Outlook. Note that it will use your ISP SMTP server and details to send the files. You may enter as many recipients as you wish when using this option.
o Send Via SMTP Server - Send the segments using your ISP SMTP Server. If you are using this feature please make sure you enter a value in the 'From Email Address' because some web-mail providers reject email messages where there is no 'From' address. You can even enter a fake mail address. You may enter as many recipients as you wish when using this option.
* From Email Address - This is the source address of the mail. This address doesn't have to be valid, although sometimes web-mail providers reject emails where the domain part of the address isn't valid.
Image
Once you are done, click on the Ok button. You can now choose if you want P2M to send all the segments or only specific few by checking/un-checking the checkboxes. Once you are ready, click on the Send button. It may take a few hours to complete the operation depending on the file size and your internet connection.
Note: If you are using an antivirus program that scans outgoing mail, it is recommended to disable this feature since it takes a long time for each segment to be scanned.
Plain Transfer
In case you don't want Peer2Mail to split, zip and encrypt your files, and just want to send the files "as is�" then you can use Plain Transfer. This option isn't secure. P2M just sends the file as an email attachment and some web mail providers might even block it.
Choose Plain Transfer from the drop down button: Image.
Once you are done filling the details as described above, click on the Ok button. Once you are ready, click on the Send button.
Note: If you are using an antivirus program that scans outgoing mail, it is recommended to disable this feature since it takes a long time for each segment to be scanned.
Downloading the Segments
P2M includes a built in browser so you can easily log into your web-mail account. Before you can merge the segments you need to download them. It is important that you will save all the segments into the same folder. The first segment name ends with the P2M extension and the rest follow with a serial number 001...00x.
Auto Download
Peer2Mail can automatically list and download files from web-mail accounts. Currently P2M supports auto-download from Gmail, Walla, Yahoo, Spymac, Unitedemailsystems, Xasamail, Gawab, Hriders and Omnilect. To use this feature, login to your account and click on the green download button (Image). P2M will then list the segments (may take a few minutes) and at any time you can tell P2M what segment to download by clicking on the checkboxes that appear next to them. Click on the Download button to begin downloading the selected segments.
If you checked the Auto Merge checkbox then Peer2Mail will automatically merge the segments once the download process is done
Image
The listing process can be a bit slow since P2M scans the mail account and gathers information about each attachment. Sometimes a server doesn't reply to a request so P2M might skip it. To fix that, once the listing process is over, click on the refresh button and P2M will re-index only the segments it didn't already list.
P2M scans for segments only in the inbox for Yahoo, Walla, Spymac, Unitedemailsystems, Xasamailand, Gawab, Hriders, Omnilect, and on all folders with Gmail.
Merging the Segments
Once you completed downloading all the segments, use P2M to merge it back to the original file. Choose the folder you want the file to be saved in and click on the Merge button. The Merge dialog:
# P2M File/s - use the Browse button to select the first segment of the file you wish to merge. The first segment extension is P2M.
# Decryption Password - If you used a password when you sent the file to your account, you must enter it now in order to merge it back. Incorrect password will result in a failure to merge the segments.
This post will teach u how to send big files to email
This technic is really a newly powerfull way of downloading movies games... Nothing to worry about the fu***** deleters and all the jerks!
Enought bullshit lets get down to buisness:
First of all u need to have a big mail box. here are the one which we can cover. click on the icon to go to the website
• Gmail (Google mail)
• Storage space - 1GB
• Maximum attachment size - 10MB
Image
www.gmail.com
• Walla! mail (the best)
• Storage space - 1GB
• Maximum attachment size - 7MB
Image
www.walla.com
• Spymac Mail
• Storage space - 1GB
• Maximum attachment size - 10MB
Image
www.spymac.com
• Unitedemailsystems
• Storage space - 3GB
• Maximum attachment size - 10MB
Image
www.unitedemailsystems.com
• Xasamail
• Storage space - 2GB
• Maximum attachment size - 10MB
Image
www.xasamail.com
• Omnilect Mail
• Storage space - 2GB
• Maximum attachment size - 7MB
Image
www.omnilect.com
------------------------------------------------------------
Image
Then download the software called peer to mail:
http://dw.com.com/redir?pid=10351095&merid=72949&mfgid=72949&lop=link&edId=3&siteId=4&oId=3002-2196_4-10351095&ontId=2196&destUrl=http%3A%2F%2Fwww.peer2mail.com%2FP2MSetup.exe
official website:
http://www.peer2mail.com
--------------------------------------------------------------
Next step : configurate the soft
go in settings > SMTP server setting
and give an smtp adress that u know
Ex: smtp.laposte.net
user : HULK
pass: ******
Once configurated u don't need to touch it for the rest pf ur upload
Image
This is a critical step, if u are experimenting any pb of connexion this is were u need to have a look:
This is possible that temporaly ur internet provider dont allow u to use other smtp adress than his. So use it
ie:
smtp.free.fr
smtp.wanadoo.fr
(these are french one I don't know of which one u are using)
...
If u are experimenting any pb it is better to desactivate ur antivirus (the scanning mail option)
Image
----------------------------------------------------------
Image
1 - Click on Splint/Send File.
2 - Click on the icon (choose a file to send.....).
3 - select the archive that u want to upload it.
4 - type the address of ur account (email).
5 - It determines the size of the parts that the archive will be divided ( take a look at the max size used by ur mail) i advise u to put a size of 6MB.
6 - It determines the type of sending. "send via smtp server"
After all that, press OK.
===========
press the selected button in the figure:
Image
===========
After all the parts have been sent,go to ur account (email) and confirms, then u have to bring the Encrypted password follows the example below:
Image
===========
Always give the following information to the users:
follows the example below:
Email: GMail
Login: zezão
Password: |/kjds42d4sd24 \|
remmember:
- only Encrypted Password, never sends ur true password
--------------------------------------------------
Be careful : never post ur coordinates without having previously verifyed the content in the mailbox
sometimes peer2mail tells u that evrything is sent but It can happens that nothing is sent
---------------------------------------------------------------------------------------------------------
U want to download games and movies with a good speed ( thats what we all here for!)
So here is an easy way to download large files from mailbox
----------------------------------------------------
first download peer to mail
Image
official website:
http://www.peer2mail.com
----------------------------------------------------
Open it and go to the browse tab
---------------------------------------------------
then take the coordinates of the film/game u want to download
in this tutorial i'll use the film mulan :
mail: walla.com
login: dragon_mushu
pass: <(/++EiJPy)>
--------------------------------------------------
U noticed that the mail used is walla.com
so go to www.walla.com with the adress bar or with the prerecorded website (see picture)
Image
login with:
"dragon_mushu" & "<(/++EiJPy)>"
Image
----------------------------------------------------
go into the inbox then click on this icon:
Image
this wil do this:
Image
after uve retrieve all the segment click on "download"
------------------------------------------------------
If everithing is fine the movie will be merge automatically
and u won't need to care about the segments
------------------------------------------------------
If u look for a place to share/download movies/games using peer2mail just go to the peer2mail website www.peer2mail.com. Then go to the forum and click on "peer2mail related websites".
here is the direct link (may not work)
http://www.peer2mail.com/forums/viewforum.php?f=13
----------------------------------------------------------------------
Here u are now u should be an expert on peer2mail!!!
-----------------------------------------------------------------------------------------------------------------
Peer2Mail is the first software that let you store and share files on any web-mail account. If you have a web mail account with large storage space, you can use P2M to store files on it. Web-mail providers such as Gmail (Google Mail), Walla!, Yahoo and more, provide storage space that ranges from 100MB to 3GB.
P2M splits the file you want to share/store zips and encrypts it. P2M then sends the file segments one by one to your account. Once P2M uploaded all file segments, you can download them and use P2M to merge the segments back to the original file.
Sending a File
In order to send a file to an email account, Peer2Mail needs to split it into segments. Web-mail providers limit the size of an email attachment usually to a nominal 10Megs, but due to the size increase resulting from transport encodings, the limit works out to be a few MB less (Usually 7MB). Use the following dialog to prepare the file before sending:
* File Name - The file/s you want to send. You can use the Browse button to select a single or multiple files.
* Mail To - The recipients who will receive the file (Web-mail account). When using Direct Send you may enter only one email address. If you are sending Via MAPI then you can enter as many recipients as you like; Use the Recipients button to easily add email address separated by semi colon (icon_wink.gif.
* Optional Encryption Password - P2M automatically encrypts each segment to protect you privacy, however you can set a password (key) for the encryption to maximize the privacy. You will need this password when you merge the segments back.
* Segment Size - P2M splits the file into segments. Here you can determine the segment size, most of the web-mail providers limit the attachment size to a nominal 10Megs, but due to the size increase resulting from transport encodings, the limit works out to be a few MB less (Usually 7MB). It is recommended to test your web-mail provider for the size of an attachment it can receive.
Send Method -
o Direct Send - P2M has a built in SMTP component that sends the segments directly to the web-mail providers. You don't need to enter your ISP details in order to use P2M. If you are using this feature please make sure you enter a value in the 'From Email Address' because some web-mail providers reject email messages where there is no 'From' address. You can even enter a fake mail address.
o Send Via MAPI - P2M can send the segments using MAPI (Usually your outlook client). When you use this option P2M will split the files and move the sending responsibility to Outlook. Note that it will use your ISP SMTP server and details to send the files. You may enter as many recipients as you wish when using this option.
o Send Via SMTP Server - Send the segments using your ISP SMTP Server. If you are using this feature please make sure you enter a value in the 'From Email Address' because some web-mail providers reject email messages where there is no 'From' address. You can even enter a fake mail address. You may enter as many recipients as you wish when using this option.
* From Email Address - This is the source address of the mail. This address doesn't have to be valid, although sometimes web-mail providers reject emails where the domain part of the address isn't valid.
Image
Once you are done, click on the Ok button. You can now choose if you want P2M to send all the segments or only specific few by checking/un-checking the checkboxes. Once you are ready, click on the Send button. It may take a few hours to complete the operation depending on the file size and your internet connection.
Note: If you are using an antivirus program that scans outgoing mail, it is recommended to disable this feature since it takes a long time for each segment to be scanned.
Plain Transfer
In case you don't want Peer2Mail to split, zip and encrypt your files, and just want to send the files "as is�" then you can use Plain Transfer. This option isn't secure. P2M just sends the file as an email attachment and some web mail providers might even block it.
Choose Plain Transfer from the drop down button: Image.
Once you are done filling the details as described above, click on the Ok button. Once you are ready, click on the Send button.
Note: If you are using an antivirus program that scans outgoing mail, it is recommended to disable this feature since it takes a long time for each segment to be scanned.
Downloading the Segments
P2M includes a built in browser so you can easily log into your web-mail account. Before you can merge the segments you need to download them. It is important that you will save all the segments into the same folder. The first segment name ends with the P2M extension and the rest follow with a serial number 001...00x.
Auto Download
Peer2Mail can automatically list and download files from web-mail accounts. Currently P2M supports auto-download from Gmail, Walla, Yahoo, Spymac, Unitedemailsystems, Xasamail, Gawab, Hriders and Omnilect. To use this feature, login to your account and click on the green download button (Image). P2M will then list the segments (may take a few minutes) and at any time you can tell P2M what segment to download by clicking on the checkboxes that appear next to them. Click on the Download button to begin downloading the selected segments.
If you checked the Auto Merge checkbox then Peer2Mail will automatically merge the segments once the download process is done
Image
The listing process can be a bit slow since P2M scans the mail account and gathers information about each attachment. Sometimes a server doesn't reply to a request so P2M might skip it. To fix that, once the listing process is over, click on the refresh button and P2M will re-index only the segments it didn't already list.
P2M scans for segments only in the inbox for Yahoo, Walla, Spymac, Unitedemailsystems, Xasamailand, Gawab, Hriders, Omnilect, and on all folders with Gmail.
Merging the Segments
Once you completed downloading all the segments, use P2M to merge it back to the original file. Choose the folder you want the file to be saved in and click on the Merge button. The Merge dialog:
# P2M File/s - use the Browse button to select the first segment of the file you wish to merge. The first segment extension is P2M.
# Decryption Password - If you used a password when you sent the file to your account, you must enter it now in order to merge it back. Incorrect password will result in a failure to merge the segments.
Friday, 9 August 2013
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