CompTIA Security+ (SY0-501) — Question 896

A user downloads and installs an MP3 converter, and runs the application. Upon running the application, the antivirus detects a new port in a listening state.
Which of the following has the user MOST likely executed?

Answer options

• A. RAT
• B. Worm
• C. Ransomware
• D. Bot

Correct answer: A

Explanation

The correct answer is A, RAT (Remote Access Trojan), as it is known for creating backdoors and opening listening ports for remote control. Options B, C, and D are less likely in this scenario, as worms typically spread without user interaction, ransomware encrypts files for ransom, and bots are usually part of a larger network performing automated tasks.