Audit Information systems & IT Security
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Audit Information systems & and IT Security

Information System audit and IT Security

Definitions and Terminology

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Trojan horse



A program that looks and performs certain functions innocently but contains malicious code such as viruses, bacteria, and logic bombs.

source: Champlain, Auditing Information Systems:2003


A useful and seemingly innocent program containing additional hidden code that allows the unauthorized collection, exploitation, falsification, or destruction of data. A Trojan horse performs some unexpected or unauthorized (usually malicious) actions, such as displaying messages, erasing files, or formatting a disk. A Trojan horse doesn’t infect other host files, thus cleaning is not necessary.

source: D. Schweitzer, 2003, Incident Response: Computer Forensics Toolkit



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