Which among the following statements is incorrect?

Correct option is C

The statement "Trojan self-replicate and infects other files" is incorrect because a Trojan Horse (Trojan) does not have the ability to self-replicate. Unlike worms or viruses, Trojans rely on user interaction to spread, such as opening an email attachment or downloading a malicious file.

Trojans disguise themselves as legitimate software and can perform harmful activities like stealing data, creating backdoors, or spying on users.

Important Key Points:

1. Correct Statements about Trojans:
• a) Trojan looks like a legitimate software:
• Correct. Trojans often disguise themselves as trusted programs or utilities to deceive users.
• b) Some Trojans create backdoors to give malicious users access to the system:
• Correct. Many Trojans install backdoors that allow hackers to control the infected system.
• d) Trojans spread through user interaction such as opening an email attachment or downloading and executing a file from the internet:
• Correct. Trojans rely on social engineering and user actions to infiltrate systems.
2. Why "C" is Incorrect:
• Trojans do not self-replicate.
• Self-replication is a characteristic of worms or viruses, not Trojans.

Knowledge Booster:

1. Key Differences Between Malware Types:
• Trojan: Does not self-replicate; relies on user action for installation.
• Virus: Attaches to files and spreads when infected files are executed.
• Worm: Self-replicates and spreads across networks without user action.
2. Examples of Trojan Behavior:
• Stealing sensitive information like login credentials.
• Installing ransomware or spyware.
• Using the infected system as part of a botnet.
3. Interesting Fact:
• The term "Trojan Horse" is inspired by the Greek myth where a deceptive gift (a wooden horse) was used to infiltrate and attack the city of Troy.