(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 A
A Trojan is another type of malware named after the wooden horse the Greeks used to infiltrate Troy. It is a harmful piece of software that looks legitimate. Users are typically tricked into loading and executing it on their systems. After it is activated, it can achieve any number of attacks on the host, from irritating the user (popping up windows or changing desktops) to damaging the host (deleting files, stealing data, or activating and spreading other malware, such as viruses). Trojans are also known to create back doors to give malicious users access to the system.
ReplyDeleteUnlike viruses and worms, Trojans do not reproduce by infecting other files nor do they self-replicate. Trojans must spread through user interaction such as opening an e-mail attachment or downloading and running a file from the Internet.
Hence, ans is A