Cryptojacking browsers is getting increasingly more sophisticated and the newest bug is able to escape even the windows task manager. This is a problem because at this point you'll either have to enter safe mode or completely reinstall windows, an enormous headache. Remember to keep updating your antivirus software, the really only line of defense that individual users have from disabling cryptojacking efforts. The incentivization of being able to mine Monero blocks by doing some black hat techniques is too high and many talented blackhat coders are taking the easy route to ensuring their financial futures.