Removing malware has always been hard, it's always persevere or reformat. I always favored reformatting since historically that came with some performance perk

Removing malware has always been hard, it's always persevere or reformat. I always favored reformatting since historically that came with some performance perks too but sometimes I used to get lucky and there would be a program that cleaned it up by Symantec. These days I use Ghostery + uBlock Origin to shut down two popular vectors for malware to reach you. It pays to be diligent about what/where you download stuff too. I also leave on OS X's security setting that prevents unsigned apps from running until you've clicked around a bit.