Virus/Trojan/Spyware?

I downloaded a file from rapidshare links last night. it's called rapidsharebypasser.rar
i downloaded it and scanned it for viruses, nothing came up. So i double clicked the .exe file.
I left my computer on for the night and meatspin/paypal/gayporn sites popup on my browser, please help me =/

http://rapidshare.com/files/36953813/RapidShare_Bypasser.rar
this was the file

Gladly appreciated

>>2
you must use windows ya fag, any one that really knows computers wouldn't have have that problem