Term:Computer Virus

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NIST IR 7298

Computer Virus - A computer virus is similar to a Trojan horse because it is a program that contains hidden code, which usually performs some unwanted function as a side effect. The main difference between a virus and a Trojan horse is that the hidden code in a computer virus can only replicate by attaching a copy of itself to other programs and may also include an additional "payload" that triggers when specific conditions are met. SOURCE: SP 800-46

NIST SP 800-46

Computer Virus - A computer virus is similar to a Trojan horse because it is a program that contains hidden code, which usually performs some unwanted function as a side effect. The main difference between a virus and a Trojan horse is that the hidden code in a computer virus can only replicate by attaching a copy of itself to other programs and may also include an additional "payload" that triggers when specific conditions are met. See entries for Boot Sector Virus File Infector, Virus, and Macro Virus.