Question

A _________________ may be a hidden part of a program, a separate infected program a Trojan in disguise of an executable or code in the firmware of any system’s hardware.

(a) crypter

(b) virus

(c) backdoor

(d) key-logger

This question was posed to me by my school teacher while I was bunking the class.

My question is taken from Attack Vectors topic in division Understanding Attack Vectors of Cyber Security

Answer 1

Right option is (c) backdoor

Easiest explanation: A backdoor may be a hidden part of a program, a separate infected program a Trojan in disguise of an executable or code in the firmware of any system’s hardware.