I've updated to 4.4.7 on three machines all running Norton Security which didn't snag anything.
On reading your thread, I have since run a scan with the free version of MBAM on two of those machines should Norton have missed anything and each scan has come back clean.
This will have been a heuristic alert which has produced a false positive, although I'll pass this on.
I use the Pro version of the program and update through the program, but to be sure I've also tried a manual download and both Windows SmartScreen Filter and Norton have declared the download as safe.
This article describes that virus which as well as being a false positive, can also be a serious threat when real.
https://www.enigmasoftware.com/win32malwaregen-removal/