Windows 7: Help!! Annoying 'Win32 malware-gen' virus

I keep on getting a virus with this name in the C:\Windows\Temp\* folder where * keeps on changing to a new folder. The file is named 'svchost.exe' and keeps on popping up exactly every 5 minutes. However, my antivirus seems to detect it and remove it but the problem still persists every 5 minutes. What should I do? I have added c:\windows\temp in my antivirus as an exception for a temporary fix. I have also noticed an increase in popup ads. Please help! I don't want to reformat because I don't have the time as I have school tomorrow! Is this virus dangerous and how can I remove it?

grap malewarebite from here Malwarebytes.org run a full scan and it should take care of it...whats your anti virus?
you can get avira anti vir for free and its pretty good

Sounds like a bad one that re-spawns itself. You should boot into safe mode and do the virus scan. Running ccleaner at the same time will clean your temp files and other miscellaneous crap as well.

Ok, my antivirus is Avast! Home Edition and I couldn't run a full scan with Malwarebytes. The reason being because my computer crashes when I do so I can only run quick scans. So I did that instead and it found this:
C:\Windows\system32\sdra64.exe (Spyware.Zbot)

So I deleted that and rebooted. I don't know if the problem's gone though. I'll let you know when I find out.

Why can't you do a full computer scan with Malwarebytes?

Thanks everyone, my computer isn't infected anymore after I scanned and removed the viruses/ spyware in safe mode so everything is back to normal now!

Backdoor Trojan/password stealer
sdra64.exe | ThreatExpert statistics

Hello, I'm back again! But I need to ask a question about Ad-Aware 2007. I installed this because I don't like the new version for various reasons. OK, anyway, I did a scan with it and it found two infected objects, I quarantined them but now ad-aware's service won't start after I restarted my computer. So, I uninstalled it and need to ask this question:
After I uninstall Ad-Aware 2007, what happens to my quarantined objects? Do they get deleted after uninstall? Do they stay in quarantine somewhere? Or are they restored back into the computer ? Please answer ASAP.

No, the quarantined objects are not restored to the computer.

What happens to the quarantined objects then?