What is malicious software? How virus differs from worms?


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Malicious software is any type of software that is intended to harm or hack the user. They might be attempting to steal your information, or they might simply do it for malicious reasons.

The major difference between Virus and Worms

1. A Worm is a form of malware that replicates itself and can spread to different computers via Network. A Virus is a malicious executable code attached to another executable file which can be harmless or can modify or delete data.
2. The main objective of worms is to eat the system resources. The main objective of viruses is to modify the information.
3. It doesn’t need a host to replicate from one computer to another. It requires a host is needed for spreading.
4. It is less harmful as compared. It is more harmful.
5. Worms can be detected and removed by the Antivirus and firewall. Antivirus software is used for protection against viruses.
6. Worms can be controlled by remote. Viruses can’t be controlled by remote.
7. Worms are executed via weaknesses in the system. Viruses are executed via executable files.
8. Internet worms, Instant messaging worms, Email worms, File sharing worms, Internet relay chat (IRC) worms are different types of worms. Boot sector virus, Direct Action virus, Polymorphic virus, Macro virus, Overwrite virus, File Infector virus are different types of viruses
9. Examples of worms include Morris worm, storm worm, etc. Examples of viruses include Creeper, Blaster, Slammer, etc.
10. It does not need human action to replicate.a that It needs human action to replicate.
11. Its spreading speed is faster. Its spreading speed is slower as compared.
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