Question

question 13
2 pts
a______ allows a hacker to gain access to your computer and take almost complete control of it without your knowledge.
denial of service (dos)
zombie
logic bomb
rootkit
question 14
2 pts
which of the following viruses is designed to infect multiple file types in an effort to fool the antivirus software that is looking for it?
multi-partite
polymorphic
stealth
encryption
question 15
2 pts
creating and distributing______ is one of the most widespread types of cybercrimes.
spam
computer viruses
cookies
zombies

Explanation:

• Question 13: A rootkit is a type of malware that enables unauthorized access to a computer system and allows for covert control. A denial - of - service (DoS) attack aims to make a service unavailable. A zombie is a computer that has been compromised and is under the control of an attacker (usually in a botnet context, but not as directly about taking control of a single computer as a rootkit). A logic bomb is a piece of code that executes a malicious action when certain conditions are met.
• Question 14: A multi - partite virus is designed to infect multiple file types (e.g., boot sectors and executable files) to evade antivirus detection. A polymorphic virus changes its code (but not necessarily by infecting multiple file types). A stealth virus tries to hide its presence (e.g., by intercepting system calls). An encryption virus encrypts data (not about infecting multiple file types).
• Question 15: Creating and distributing computer viruses is a very common cybercrime. Spam is unsolicited email. Cookies are small data files used for tracking (not typically a cybercrime in the sense of creation and distribution as a major crime). Zombies are compromised computers (the act of creating and distributing the malware that turns them into zombies is more about viruses).

Answer:

• Question 13: rootkit
• Question 14: Multi - partite
• Question 15: computer viruses