UAC virus, MBAM won't open.

Hello, i think i'm infected, well i know i am.
this is what shows up:



Although AVG finds it i can't delete it.
also i tried other virus scanners:
-Hitman Pro this one always gets an error.
-Virusfighter, shows that it can't scan the file.
-Malwarebytes Anti-Malware doesn't open.

Also my computer jams alot, my screen freezes but i'm still able to move my mouse.
if this happens i need to reboot my computer.
also sometimes when i'm starting up my computer, it stays still just before the "Welcome"
and i only see the mouse on a black screen, i can move the mouse but can't do anything else.

I have Windows XP

Help is appreciated.
Thx in advance

Edited by Antagoniz3r, 15 September 2009 - 09:32 AM.

Yes you are infected wwith at least a rootkit.
As there are some new variants of rootkits in the wild right now that will require custom scripts to remove the infection, the process must be completed by HJT team member.

Failure to follow the proper removal process can and will cause serious damage to a machine. Recovery of the machine may be difficult, if not impossible.

You will need to run HJT/DDS.
Please follow this guide. go and do steps 6 thru 8 ,, Preparation Guide For Use Before Using Hijackthis. Then go here HijackThis Logs and Virus/Trojan/Spyware/Malware Removal ,click New Topic,give it a relevant Title and post that complete log.

Let me know if it went OK.