My system is infected, but Prevx can't clean it. Here are the symptoms. It's regularly popping up a "Malware Blocked" alert telling me that it automatically blocked a High Risk Cloaked Malware infection. The file is always: C:\windows\temp\abcd.tmp\svchost.exe where "abcd" is some random 4 letters. I'll run a scan with Prevx. A couple of times, it's actually found something. I shut down everything and disco from the net, let it finish, reboot and rescan (this time clean). But invariably, the Malware alert pops up again. Several times, while scanning, it's hung. Generally at 63%. Right now, it appears to be hung at 98% while Analyzing Scan Results. I'm not sure what to do at this point.