Need Help - Virus

[Untouch]

It is a virus or malware.
Update I used rkill as soon as I turned on my computer and I got this:

Code:

Processes terminated by Rkill or while it was running:


C:\Users\Peter\AppData\Local\Temp\lFtEnd.exe
C:\Users\Peter\Desktop\rkill.com
C:\windows\SysWOW64\net.exe


Rkill completed on 27/10/2010  at 22:04:20

Can you post a screenshot of this popup?

Nope can't do anything when it pops up. The only thing which works is shutdown via ctrl alt delete.