After installing the Microsoft Windows 8.1 updates this morning (KB3000850 and KB3011750), webroot reported msimg32.dll as infected by w32.rogue.gen.
I think this is perhaps a false positive as I had run manual scans prior and had no threats detected until just today?
Best answer by Rakanisheu
EDIT just seen your reply! Glad to hear your back up and running. I have to fix my own Win 8.1 VM which I have completely destroyed :D My shift is just finished if you have any further issues please reply to the support ticket.