Understanding Cisco Cybersecurity Fundamentals (SECFND, legacy) — Question 59

What is a Trojan horse?

Answer options

• A. A piece of malware that downloads and installs other malicious content from the Internet to perform additional exploitation on an affected system.
• B. A type of malware that executes instructions determined by the nature of the Trojan to delete files, steal data, and compromise the integrity of the underlying operating system, typically by leveraging social engineering and convincing a user to install such software.
• C. A virus that replicates itself over the network infecting numerous vulnerable systems.
• D. A type of malicious code that is injected into a legitimate application. An attacker can program a logic bomb to delete itself from the disk after it performs the

Correct answer: B

Explanation

The correct answer is B because it accurately describes a Trojan horse as malware that can delete files, steal data, and compromise system integrity, often through social engineering. Option A refers to a downloader, not a Trojan specifically. Option C describes a virus, which is different from a Trojan. Option D pertains to a logic bomb, not the general characteristics of a Trojan horse.