Question

What is the difference between virus, worms and trojan in terms of?

1. What does it do?

2. How does it spread to another computer?

3. Does it infect the file?

4. Does there need to be user action for it to be spread?

5. It can be attached to.

Answer 1

	Virus	Worms	Trojan
What does it do?	interface itself to another computer program or computer program to hurt computer framework.	Worms reproduce itself to cause moderate down the computer framework	Trojan Horse instead of imitate capture a few imperative data approximately a computer framework or a computer organize.
How does it spread to another computer?	Using physical media or via internet	Via email or via document files	Via network or LAN, MAN
Does it infect the file?	Yes, it modifies the files signature and structure	It targets system resources	It is controlled remotely so if attacker want, they can destroy it and infect files
Does there need to be user action for it to be spread?	Spread via pendrive and it replicate itself with another names.	Spread via emails	Silently spread over the LAN network
It can be attached to.	File system and servers	Emails and messaging servers	In LAN games and torrent file sharing