SCL 2 : Computer Software (Question 2)

Type of Malware	Function	How can it be repaired or removed
Spyware	Spyware monitors your movements on the Internet, sending information back to a central computer that then targets you with advertising.	Download and install a free removal tool such as Lavasoft Ad Aware, Spybot Search & Destroy (S&D).  Run the tool to scan your computer for spyware and other unwanted software. Review the files discovered by the tool for spyware and other unwanted software.  Select suspicious files for removal by       following the instructions the software       provides.
Trojan	The Trojan program is a malware that masquerades as a legitimate program. The program may have a legitimate function, but it carries ulterior motives. Trojans can delete data, compromise security, relay spam, and otherwise infect your computer.	Recognize the Trojan so that it is easier to remove them. Stop the function of system restore so that it will not restore the file you deleted. Restart you computer using F8 and select safe mode. Go to Add or Remove Programs to remove the programmes affected by Trojan horse. Remove extensions in order to delete all files of a programme from Widows system folder.
Virus	A computer virus infects your computer, taking control over some or all of its functions. The virus destroys data or looks for things like passwords, credit card numbers, or other sensitive data.	If you update your computer and use free antivirus software such as Microsoft Security Essential, you can help permanently remove unwanted software and prevent installation in the first place.
Worm	A worm is a virus that replicates itself over a network that arrive via email. Worms are used to deliver viruses, or the worm itself might be a virus, because the terms are interchangeable.	If you think you have a computer worm, use one or both of these tools to scan your computer and help get rid of it. The tools are Microsoft Safety Scanner and Microsoft Software Removal Tool.