Mr PC wrote:
Computer guy here. Which antimalware do you have? We like Malwarebytes (the free version is fine), Superantispyware and Spybot. None of them is perfect. I would run one after the other to see if one of them picks it up. Let us know how it turns out. There are more extreme measures to try after this, including doing a System Restore to take the computer back to the way it was before this started. Hope this helps.