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Computer Security Resource Center

Computer Security Resource Center

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trojan horse

Definition(s):

  A computer program that appears to have a useful function, but also has a hidden and potentially malicious function that evades security mechanisms, sometimes by exploiting legitimate authorizations of a system entity that invokes the program.
Source(s):
CNSSI 4009-2015
NIST SP 800-12 Rev. 1 under Trojan Horse from CNSSI 4009
NIST SP 800-82 Rev. 2 under Trojan Horse from RFC 4949

  A useful or seemingly useful program that contains hidden code of a malicious nature that executes when the program is invoked.
Source(s):
NIST SP 800-28 Version 2 under Trojan Horse

  A computer program containing an apparent or actual useful function that also contains additional functions that permit the unauthorized collection, falsification, or destruction of data.
Source(s):
NIST SP 800-47 [Superseded] under Trojan Horse