Which of the following statements about malware are true?
(A) A Trojan Horse is malware disguised as legitimate software.
(B) A Virus inserts itself into another program. It runs and spreads itself when the program is opened.
(C) A worm is similar to a virus except that it does not need a program in order to run. It spreads by itself.
Choose the correct answer from the options given below:

Correct option is D

All three statements are true.
· Trojan Horse is a type of malware that masquerades as legitimate software to trick users into executing it.
· A virus attaches itself to a legitimate program and spreads when the program is executed.
· A worm is similar to a virus but can spread without needing to attach itself to a host program.
Important Key Points:
1. Trojan Horse: Disguised as legitimate software, but its true purpose is malicious.
2. Virus: Attaches itself to other programs and spreads when the host program runs. Viruses typically require user interaction, like opening an infected file.
3. Worm: Self-replicating and can spread independently of any host program. Worms exploit network vulnerabilities to spread without human intervention.