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This is an accepted version of this page This is the latest accepted revision, reviewed on 27 February 2025. Computer program that modifies other programs to replicate itself and spread Hex dump of the Brain virus, generally regarded as the first computer virus for the IBM Personal Computer (IBM PC) and compatibles A computer virus is a type of malware that, when executed, replicates itself by ...
Hex dump of the Blaster worm, showing a message left for Microsoft co-founder Bill Gates by the worm's programmer. This timeline of computer viruses and worms presents a chronological timeline of noteworthy computer viruses, computer worms, Trojan horses, similar malware, related research and events.
1260, or V2PX, [1] [2] was a polymorphic computer virus written in 1989 by Mark Washburn. Derived from Ralf Burger's publication of the disassembled Vienna Virus source code, the 1260 added a cipher and varied its signature by randomizing its decryption algorithm. Both the 1260 and Vienna infect .COM files in the current or PATH directories ...
Boot up your computer with the Windows disc (or the "recovery disc") in the drive. Follow the on-screen instructions to "restore your computer to its original state" or "reinstall Windows" or "reformat your hard disk". When the computer asks you to create user accounts, you will create at least two.
On December 31, 1999, Yamaha shipped a software update to their CD-R400 drives that was infected with the virus. In July 1998, a demo version of the first-person shooter game Sin was infected by one of its mirror sites. [7] CIH's dual payload was delivered for the first time on April 26, 1999, with most of the damage occurring in Asia. [8]
To combat computer viruses and other malicious software, many security advisory organizations and anti-virus software developers compile and publish virus lists. When a new virus appears, the rush begins to identify and understand it as well as develop appropriate counter-measures to stop its propagation.
AF/91 was a virus hoax surrounding a computer virus purportedly created by the United States Intelligence Community as a cyberweapon during the Gulf War.The hoax originated in a 1991 InfoWorld article published as an April Fools' Day joke; in reality, no such virus ever existed, and the U.S. military is not known to have used a strategy similar to this in the Gulf War.
A screenshot of the Happy99 virus in action. Happy99 (also termed Ska or I-Worm) [4] is a computer worm for Microsoft Windows.It first appeared in mid-January 1999, spreading through email and usenet.