Looks like a false alarm. BitDefender got a bit too smart/aggressive for its own good.
You need to whitelist MacroQuest2.exe in BitDefender. Did you try Allow and Monitor?
MacroQuest2.exe has always looked and will continue to look "suspicious" to anti-virus programs.
EDIT: I could go on a long rant here how anti-virus often is more annoying than potential threats and does not really protect from the really nasty stuff.
Best would be if you could tell BitDefender to stop checking MQ2 directory.
EDIT2: you need to copy and paste the link as BitDefender put brackets in its URL and I am too lazy to look up escaping brackets in RG forums...
https://www.bitdefender.com/support/how-do-i-exclude-a-folder-from-being-scanned-[bitdefender-windows-8-security]-1067.html