I got this popup about an hour ago, and feel like my issue may be related. I was browsing a new site when it appeared, and am uncertain if this is malware related or a bunch of Windows updates that were installed a couple days ago? I checked with Malwarebytes, but it found nothing.
I'm not finding the update you mention (KB3004394) in the Installed Updates list either. nevermind, i found it under the Microsoft Windows header.
Edited by hamluis, 12 December 2014 - 04:42 PM.
PM sent new OP - Hamluis.