How did a program called Spylocked get on my computer?

A program called Spy Locked (www.spylocked.com) has installed itself on my computer. It is supposedly an antispyware program, but I did not install it myself. Anyone ever heard of it or know how it installed itself?

How did a program called Spylocked get on my computer?norton antivirus 2007

SpyLocked (Spy Locked) is a rogue program that is installed by a trojan called Zlob. Of course you need to remove SpyLocked, but more importantly, you need to ALSO remove the Zlob trojan that installed it. Zlob infects your computer and starts generating warning messages in hopes of scaring you into buying SpyLocked. Download SpyNoMore to scan your PC, it is very effective against the Zlob trojan and SpyLocked.

http://www.spynomore.com/spylocked.htm

How did a program called Spylocked get on my computer?product key

SpyLocked is the latest in the family of Zlob installed rogue anti-spyware programs. There is a more in depth description and removal guide at the following link:

http://www.bleepingcomputer.com/forums/t...

I advise that you do not go to a site offering a solution other than a manual removal method or smitfraudfix. Using any other method is just the person trying to make money by selling you a piece of software. There is absolutely ZERO REASON that you should have to spend money to remove this infection.
SpyLocked is a Dangerous fake antispyware software and it is update version of SpyDawn. SpyLocked is a variant of Trojan.Zlob. SpyLocked display a fake warning message to purchase the paid version of SpyLocked.