Difference between Worms and Adware

1. Worms :
Worms is similar to virus but it does not modify the program. It replicate itself more and more to cause slow down the computer system. Worms can be controlled by remote. The main objective of worms to eat the system resources.

2. Adware :
Adware is not exactly malicious but they do breach privacy of the users for malicious purpose. They display ads (a pop up window appear) on computer’s desktop or inside individual programs. They mainly come attached with free to use software, thus main source of revenue for such developers. They basically monitor your interests and display relevant ads. An attacker may embed malicious code inside the software and adware can monitor your system activities and can even compromise your machine.

Difference between Worms and Adware :

S.No.	WORMS	ADWARE
1.	A Worm is a form of malware that replicates itself and can spread to different computers via Network.	Adware is similar to a spyware and it can be both intrusive and difficult to eradicate.
2.	The main objective of worms to eat the system resources.	The main objective of adware is to monitor your interests and display relevant ads.
3.	Worms can be detected and removed by the Antivirus and firewall.	Adware can be detected and removed by the antivirus program.
4.	It doesn’t need a host to replicate from one computer to another.	It require host is needed for spreading.
5.	It can give unauthorized access and control of the system to the hackers.	It provides profit to the developer by generating online advertisement.
6.	It is less harmful as compared.	Adware is more harmful as compared.
7.	Morris Worm, Storm Worm and SQL Slammer are some of the examples of worms.	Fireball, Appearch, Gator and dollarrevenue are some of the examples of adware.
8.	Worms are executed via weaknesses in system.	It is unknowingly attached with free to use software, distributed through pop-up windows.