Multiple choice technology security

Virus combined with a useful software is called as____________

  1. worm

  2. Trojan-horse

  3. script injection

  4. DOS attack
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A Trojan horse is malware disguised as legitimate or useful software, tricking users into installing it. Option B is correct. A worm (A) self-replicates across networks, script injection (C) injects malicious code into applications, and DOS attack (D) overwhelms systems with traffic; none of these describe malware hidden inside useful software.

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