I have a file that I've attempted to delete a couple of times, but seems to pop back up in the recycle bin every boot.
File is called "MABackup-2015-12-17-sched.mabackup" and is 1.85 KB in size.
I have no idea where it came from and so far have been unable to get rid of it. I installed a game on the 16th and 18th, Skyforge from my.com, though I couldn't tell you if it is related or not. I've searched online for this file extension, with no results. Malware and Virus scans have turned up nothing.