Which virus category has the capability of changing its own code, making it harder to detect by anti-virus
software?
A.
Stealth viruses
B.
Polymorphic viruses
C.
Trojan horses
D.
Logic bombs
Explanation:
A Polymorphic virus produces varied but operational copies of itself in an attempt to evade anti-virus software.
Incorrect Answers:
A: A stealth virus attempts to hide changes of the affected files but not itself.
C: A Trojan horse is code that is disguised as a useful application but contains code that has a malicious or
harmful purpose imbedded in it.
D: A logic bomb executes a set of instructions when specific conditions are met.Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, New York, 2013, pp. 1199, 1200, 1201,1206