False positive.
Repeat
We reported it as a false positve a couple of weeks back, as per all the other threads on this stuff is is a false positve.
Update your AV signatures.
If still a problem report is as a false positive. They will clear it.
The onty time you will see a virus, is if your system itself already has a virus and infects WOFF
Bitdefender is one of the worst for this, and MS Defender / MSE has caused several problems.
As I said in the stick post some of the AV vendors they SHARE virus data, so when one gets falsely flagged suddenly others also say it's one days later.
(whilst 50 still say it isnt).
http://SimHQ.com/forum/ubbthreads.php/topics/4387514/virus-in-wofftoolbox-exe#Post4387514