avast web shield has blocked a harmful site

Greetings,
I have a computer that has been acting strange for about a week or so. I have been noticing that there seems to be a bunch of explorer.exe processes running (sometimes 6-8 of them) making the CPU jump to 100 and making the computer run very slowly. It was running MSE for AV and it didn’t seem to be doing the trick, I switched to Avast today and now I keep getting messages saying:
“Web Shield has blocked a harmful website. Object: f0246cc46c5f668Infection: URL : MalProcess C:/?windows//Explorer”
I am quite frankly out of ideas, I have tried the following:
Malwarebytes: No infections detected
Superantispyware: Only tracking cookies found
Rkill: Nothing detected
Combofix:Nothing detected
MSE: Nothing found.
I would rather not reinstall Windows 7, lots of annoying software to re install :P.

Any Ideas?

http://forum.avast.com/index.php?topic=53253.0

I think I am going to re install Windows on this computer, every time I try to scan with one of the programs listed (safe mode and reg mode) I get a BSOD. Thanks for your reply

If you are going for a fresh install of windows, I suggest the following:

  • Disconnect from the Internet (pull out the cable)
  • Install windows (format the drive ofcourse)
  • Install ALL drivers for your system
  • Install avast
  • Connect to the Internet
  • Install all updates security/drivers (especially the security updates/service pack)
  • Install the applications you are normally using
  • Make settings/configurations changes is you want/need
  • Create a image of that drive

That last one will safe you a lot of time in case you need to/want to reinstall windows again.