CSCU Malware and Antivirus 2

Question 1

What distinguishes a worm from a virus in terms of propagation?

Accepted Answer

Worms can self-replicate and spread across networks without user interaction, while viruses require a host file and user action to spread

Answer

Worms only infect Mac computers while viruses target Windows

Answer

Worms are less harmful than viruses

Answer

Worms can only spread through email while viruses spread through USB drives

Question 2

What is a rootkit and why is it particularly dangerous?

Accepted Answer

Malware that hides deep within the operating system to conceal its presence and the presence of other malware

Answer

A tool for managing root access on Linux systems

Answer

A legitimate system administration utility

Answer

A type of firewall configuration tool

Question 3

What is heuristic-based malware detection?

Accepted Answer

Detection that analyzes code behavior and structure to identify potentially malicious programs even without a known signature

Answer

Detection based on matching known virus signatures

Answer

Detection that only works when connected to the internet

Answer

Detection based on the file size of programs

Question 4

What is a fileless malware attack?

Accepted Answer

Malware that operates entirely in memory without writing persistent files to disk, evading traditional file-scanning antivirus

Answer

Malware that only infects files smaller than 1 KB

Answer

Malware that deletes all files on the hard drive

Answer

Malware that spreads through email without attachments

Question 5

Why is it important to keep antivirus signature databases up to date?

Accepted Answer

New malware is constantly being created, and updated signatures allow the antivirus to recognize and block the latest threats

Answer

Updated signatures improve computer performance

Answer

Signature updates reduce the size of the antivirus program

Answer

Updated signatures prevent software license expiration

Question 6

What is a potentially unwanted program (PUP)?

Accepted Answer

Software that may not be explicitly malicious but exhibits undesirable behaviors such as displaying ads, changing browser settings, or tracking users

Answer

Any program not made by Microsoft

Answer

A program that is too large for the hard drive

Answer

An outdated version of a legitimate application