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Definition: RAT


(1) (Radio Access Technology) See Multi RAT.

(2) (Remote Access Trojan) Software in a user's machine that is interactively controlled by an attacker. Having full administrator rights, the attacker can perform any operation in the computer remotely and direct the RAT in the infected machine just like a user with a Web browser requests data from a server. The Cult of the Dead hackers created the classic RAT (see Back Orifice). See Trojan.