With over 900 'nasties' on your computer, it must have been running very slowly indeed. Congratulate yourself for having the wisdom to install Malwarebytes. It does a remarkably good job...but...it needs to be run fairly frequently. Weekly would be preferable, since there seems to be a proliferation of this kind of nastiness recently.
My own safeguards are all in place, but they fail to detect a lot of the rubbish which quickly accumulates. I regularly delete about 12 objects which Malwarebytes detects, and that's weekly.
Keep at it, Ironmonger. Nil Illegitimus Carborundum, eh?