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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 ...
November 10: Agobot is a computer worm that can spread itself by exploiting vulnerabilities on Microsoft Windows. Some of the vulnerabilities are MS03-026 and MS05-039. [37] November 20: Bolgimo is a computer worm that spread itself by exploiting a buffer overflow vulnerability at Microsoft Windows DCOM RPC Interface (CVE-2003-0352). [38]
Computer viruses generally require a host program. [11] 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.
The Sobig viruses infected a host computer by way of the above-mentioned attachment. When this is started they will replicate by using their own SMTP agent engine. E-mail addresses that will be targeted by the virus are gathered from files on the host computer. The file extensions that will be searched for e-mail addresses are: .dbx.eml.hlp.htm ...
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.
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.
A macro virus can be spread through e-mail attachments, removable media, networks and the Internet, and is notoriously difficult to detect. [1] A common way for a macro virus to infect a computer is by replacing normal macros with a virus. The macro virus replaces regular commands with the same name and runs when the command is selected.
Many viruses can be synthesised de novo ("from scratch"). The first synthetic virus was created in 2002. [226] Although somewhat of a misconception, it is not the actual virus that is synthesised, but rather its DNA genome (in case of a DNA virus), or a cDNA copy of its genome (in case of RNA viruses). For many virus families the naked ...
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