Malware

Question 1

What are the Characteristics of malware?

Answer 1

-Self-replicating: does it reproduce by itself?
-Population growth: How does the infected population increase?
-Zero if it is not self-replicating
-But sefl replicating can have either a zero or —positive population growth
-Parasitic- does it need another executable in order to exist?

Question 2

Logic bomb

Answer 2

Self-replicating: no
Population growth: zero
Parasitic: possibly

Has a payload, which is an action to perform
-Delete files, etc - usually a malicious effect
Has a trigger, which is boolean condition as to when to execute
-On a given date, when somebody performs some action, etc.

Question 3

Trojan Horse

Answer 3

Self-replicating: no
Population growth: zero
Parasitic: yes

A program that looks like a valid program, but has a malicious purpose

Question 4

Back Door

Answer 4

Self-replicating: No
Population growth: zero
Parasitic: possibly
Any mechanism that allows bypassing of the normal security checks