CompTIA Security+ (SY0-501) — Question 226

Malware that changes its binary pattern on specific dates at specific times to avoid detection is known as a (n):

Answer options

• A. armored virus
• B. logic bomb
• C. polymorphic virus
• D. Trojan

Correct answer: C

Explanation

The correct answer is C, polymorphic virus, as it is specifically designed to change its code to avoid detection by antivirus software. An armored virus (A) is focused on protecting itself from analysis, while a logic bomb (B) is activated by a specific event rather than changing its code. A Trojan (D) disguises itself as legitimate software but does not change its binary pattern over time.