March 4, 2018


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A program that is inserted into a system, usually covertly, with the intent of compromising the confidentiality, integrity, or availability of the victim’s data, applications, or operating system or of otherwise annoying or disrupting the victim.
SOURCE: SP 800-83

See Malicious Code. See also Malicious Applets and Malicious Logic.
SOURCE: SP 800-53; CNSSI-4009

A virus, worm, Trojan horse, or other code-based malicious entity that successfully infects a host.
SOURCE: SP 800-61