Trojan horse
Trojan horse describes a type of malicious software (malware) named after the wooden horse the Greeks used to infiltrate Troy that masquerades as a legitimate computer program such as a game, image file, disk utility, or even an antivirus program.
Additional Information
Users are typically tricked into downloading Trojan horses on their systems because they appear in the form of benign, useful software or files from a legitimate source. Once activated, Trojan horses can perform a number of attacks on a computer system that can cause pop-up windows to delete files, steal data, give malicious users access to a system, or activate and spread other malware, such as viruses. Unlike computer viruses and worms, Trojan horses do not reproduce by infecting other files, nor do they self-replicate.
