Avast is detecting yaxyxu.dll in system32 as malware-gen. It is detecting and moving this approx every 1.5 seconds, so it's bogging down the computer. Avast says the process is lsass.exe sometimes and csrss.exe at other times. I usually run spybot but have removed it after reading recommendations here today. I have installed superantispyware and malwarebytes. Superantispyware finds no problem at all, and malwareytes will not launch! That's right, I have even installed it again, and mwb just flat won't launch on my pc. The mwb help opens fine. (I have run cclean also.) Since mwb won't run, should I go ahead and runhijackthis? or is there something known to cause this?
This is normally a very clean PC. It was idle for about 10 minutes when avast woke me up. In lieu of the other options, should I stop avast and let this thing launch to see what it does, then go and clean it? I'd obviously prefer not to do that and am surprised I can find no mention of this particular dll anyplace. Is this a brand new rogue thing?