Spylocker is one more corrupt antispyware tool which name was derived from infamous spylocked antispyware. Some security sites call spylocker as the worst spyware ever. Basically its a fake antispyware tool, it scans your systems and finds lots of infections. This called scare tactics to make user to purchase the program.
Spylocker is installed by a trojan zlob. It acts the same as other rogue antispyware products from this family act: users start to get a message which looks like windows notification message and it tells that you are infected with spyware.
Slight differences are that this product waits few days after the infection, and then starts to act. Because of that users dont know the exact time they were infected with spylocker. Its possible to remove this parasite manually, but it tries to recreate itself after reboot, so you need to remove all traces of spywarelocker from the system.

VirusHeal is another corrupt antispyware which emerged in the end of June 2007. Its a clone of well known rogue antispyware in the past – Spyheal. You can be infected by downloading this application directly from their site: virusheal.com, and by installing fake codec (Trojan-Downloader.Zlob.Media-Codec). Also you can get VirusHeal by downloading torrents, searching for cracks, serials. All background of VirusHeal is very shady. Not much info can be gathered from Whois, domain name has private registration.
Avoid VirusHeal rogue antispyware by all means.

SpyCrusher is another variant of well known corrupt antispyware product – spycrush. But in my opinion its NOT a new variant. Its simply another name for the same parasite. Users usually mix the names. They heard the name, but don't know it exactly and that's how new variants of parasites emerges. So my advice that if you think that you have the Spy Crusher infection, then just follow Spycrush removal instructions and you will be able to get rid of the parasite. If I'll find some unique symtoms of spyCrusher infections, different from spycrush infections, I'll post it immediately.

And for now: spycrusher removal (original spycrush removal instructions)

SpyCrush started its activity in early 2007, later its spreading slowed down and only in June we caught new wave of SpyCrush infections. SpyCrush is a corrupt security tool that is advertised by the same named trojan. SpyCrush anti-spyware is not functional; it only pretends to scan a computer and of course it can not detect any serious threats. However SpyCrush trojan displays fake security warnings and prompts to buy the anti-spyware as the only solution to clean a computer. Follow SpyCrush removal to get rid of it.

I published manual removal information of most popular nasty parasites including SpyCrush. Please check the SpyCrush removal instructions. Information is published under the separate TAB called "Removal Info".

Also I have published additional resouces regarding Spy Crush. Its on the separate TAB called "More Sources". Some of them have manual and automated removal instructions, some advices, Some discussions, some software descriptions.
Check info on SpyCrush in Other Sites

Another similar name of this parasite is SpyCrusher. its the same parasite, simple derivation of the name.