Which type of attack uses a simple or complex program that self-replicates and/or deposits a payload on a remote or local computer?

A.
Dictionary attack

B.
Hijacking attack

C.
Illicit server attack

D.
Virus attack

Explanation:
This is what a virus does.
Incorrect Answers:
A: A dictionary attack is the process of trying every character combination to guess a password (brute force) or using a dictionary type program to generate and try all character combinations.
B: A hijacking attack is when someone gets in the middle of a transaction and takes over the transaction, spoofing himself as the original transaction partner.
C: An illicit server attack utilizes an unauthorized service or daemon running on your system to send out information to a hacker that can be used to further compromise the system.