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A computer virus [1] is a type of malware that, when executed, replicates itself by modifying other computer programs and inserting its own code into those programs. [2] [3] If this replication succeeds, the affected areas are then said to be "infected" with a computer virus, a metaphor derived from biological viruses. [4]
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 first IBM PC virus in the wild was a boot sector virus dubbed (c)Brain, created in 1986 by the Farooq Alvi brothers in Pakistan. [14] Malware distributors would trick the user into booting or running from an infected device or medium. For example, a virus could make an infected computer add autorunnable code to any USB stick plugged into it.
Scan all your devices – Download a reputable anti-virus program that will scan your devices for malware or computer viruses. They should also be capable of detecting phishing programs or those ...
The virus described in the warnings did not exist, but the warnings themselves, were, in effect, virus-like. [11] Invitation attachment (Allright now/I'm just sayin) United States: Jim Flanagan: An e-mail spam in 2006 that advised computer users to delete an email, with any type of attachment that stated "invitation" because it was a computer ...
Scareware is part of a class of malicious software that includes rogue security software, ransomware and other scam software that tricks users into believing their computer is infected with a virus, then suggests that they download and pay for fake antivirus software to remove it. [2]
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