CompTIA CySA+ (CS0-002) — Question 374

During an investigation, a security analyst determines suspicious activity occurred during the night shift over the weekend. Further investigation reveals the activity was initiated from an internal IP going to an external website. Which of the following would be the MOST appropriate recommendation to prevent similar activity from happening in the future?

Answer options

• A. An IPS signature modification for the specific IP addresses
• B. An IDS signature modification for the specific IP addresses
• C. A firewall rule that will block port 80 traffic
• D. Implement a web proxy to restrict malicious web content

Correct answer: D

Explanation

The correct answer is D because implementing a web proxy can help filter and control the web content that users access, thus preventing malicious activities. Options A and B focus on signature modifications which may not directly address the issue of web content access. Option C may block legitimate traffic and does not specifically target the root cause of the suspicious activity.