If Grif's list at http://www.cnet.com/forums/discussions/how-to-remove-pup-option-603542/#post-f742c795-5881-433b-a29b-6d758efe5cd3 doesn't find and remove it, head over to Bleepingcomputer.com where they have different methods. Be aware there's a lot of folk wanting help so get in line, follow their posting rules and be patient.
I have an issue with one of the many cryptomining websites using your browser. Altho i blocked the domain and have anti cryptocjacking add-ons this one remains persistent. So here`s the problem: every hour the website opens in a new tab and tries to do its thing. I immediately get a notification and everything stops there.. until the next time it opens itself(hourly intervals). I have no clue whats prompting it to open all the time but it`s incredibly frustrating as it alt tabs me and happens so often