After running malwarebytes, run a FULL AV scan (I'm certain at this point there isn't any other bug)
However if you wanted to be sure there's nothing else, you can run spybotSD. I wouldn't rely on it too heavily as the scan engine is quite similar. Also you may find that spybotSD is now rather resource intensive (not like the version they had a couple of years ago)
After which if you think your restore points are infected and don't need it anymore, you can delete it by running a disk cleanup (start, accessories, system tools), 2nd tab provides you an option to delete all restore points except the last