ONENOTE.exe Potential False Positive

This detection appeared after !Avast updated itself, this is the 2014 version of One Note. The only thing I was viewing on the internet was youtube and facebook. Should I do the normal thing and do all the scans or has this been reported a lot? I sent this to Virus Total and this is what I got. !Avast calls it a Win32.gen virus.
https://www.virustotal.com/en/file/1aa81c38d325ed0a6d26cf6b30407cac88faf5d41ceea98338807aa6321cb263/analysis/1408804955/

Fox.

You can report a possible FP here: http://www.avast.com/contact-form.php

Thanks I sent them an email. Will they reply back if my assumption or guess was wrong?

Fox.

Only if further info is needed.

Hello,
file has invalid digital signature – it looks that it was modified. But it looks clean, detection will be fixed.

Milos

Thanks.