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This is an accepted version of this page This is the latest accepted revision, reviewed on 2 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 ...
Brain is the industry standard name for a computer virus that was released in its first form on 19 January 1986, [1] and is considered to be the first computer virus for the IBM Personal Computer (IBM PC) and compatibles.
An example of a macro virus is the Melissa virus which appeared in March 1999. When a user opens a Microsoft Word document containing the Melissa virus, their computer becomes infected. The virus then sends itself by email to the first 50 people in the person's address book. This made the virus replicate at a fast rate. [4]
By the time the virus is identified, many names have been used to denote the same virus. Ambiguity in virus naming arises when a newly identified virus is later found to be a variant of an existing one, often resulting in renaming. For example, the second variation of the Sobig worm was initially called "Palyh" but later renamed "Sobig.b ...
The virus writes its own code into the host program. When the program runs, the written virus program is executed first, causing infection and damage. A worm does not need a host program, as it is an independent program or code chunk. Therefore, it is not restricted by the host program, but can run independently and actively carry out attacks ...
Brontok is a computer worm [1] running on Microsoft Windows.It is able to disperse by e-mail.Variants include: Brontok.A; Brontok.D; Brontok.F; Brontok.G; Brontok.H ...
The Nimda virus is a malicious file-infecting computer worm. The first released advisory about this threat (worm) was released on September 18, 2001. Nimda affected both user workstations ( clients ) running Windows 95 , 98 , NT , 2000 , or XP and servers running Windows NT and 2000.
The Form data sector contains the text "The FORM-Virus sends greetings to everyone who's reading this text. FORM doesn't destroy data! Don't panic! Fuckings go to Corinne." Additionally, some versions of Form have had this text removed. Form makes the assumption that the active partition is a DOS FAT partition.