FAKE NEWS!
PUA stands for potentially unwanted application.
So there's no signature, nor application process that you can appeal.
It's a unilateral decision, judgement call, by BitDefender.
"Potentially" is a misnomer. Even the Windows 10 installer is, technically, "potentially" unwanted. I know plenty of people who would say, "I don't want that crap anywhere near my system."
The REAL definition is "almost certainly unwanted" as in, <1% of people ever use it, and 99% of people have it installed unintentionally, and 99% of people when they discover it and have the opportunity, uninstall it.
Also of note: when I restored the file from quarantine, somehow it now has security permissions that I can not access it. I've spend 2 hours on the web, but it's clearly something deeply behind the scenes that none of these posts even address. It looks like it's owned by me and and I have full permissions, but when I try to run it, I get still access denied. It looks like I can change permissions, but when I try, everything's grayed out.
I submitted a false positive for the agent to their website:
https://www.bitdefender.com/consumer/support/answer/29358/Everybody should do that.
If I have to choose between BitDefender and Remote Utilities, it's Remote Utilities hands down!
Now I feel like I'm on a crusade for Truth and Justice.