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UGC-NET | UGC NET CS 2014 Dec - III | Question 74

A Trojan horse is

(A)

A program that performs a legitimate function that is known to an operating system or its user and also has a hidden component that can be used for nefarious purposes like attacks on message security or impersonation.

(B)

A piece of code that can attach itself to other programs in the system and spread to other systems when programs are copied or transferred.

(C)

A program that spreads to other computer systems by exploiting security holes like weaknesses in facilities for creation of remote processes

(D)

All of the above

Answer

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