It wouldn't be the first false positive I've had from McAfee so if you are running that - be aware that this morning may not go to plan. I'm waiting to hear from MadCap support - I think I'll have to contact McAfee direct to get a patch though (I doubt very much it's MadCap releasing viruses, lol).
Of course, I may in fact have a virus, but in the name of being aware - I thought I'd share this morning's pain.