Hi everyone. Just a quick question: Is anyone familiar with this phenomenon? I left my computer idle to work in the kitchen for about 25 min, and when I returned I found that rundll32.exe was running and processing something over and over again. I checked Process Explorer, and found it was running something called srrstr.dll - Which apparently came digitally signed from Microsoft (though I guess that's easy to forge). I'm not sure what it was doing, but it chugged away for an additional ten minutes before it closed itself. Very strange.
Can anyone please advise if this is a nasty? NOD32 and Malwarebytes didn't catch it, if it is. Thank you.