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
