Its probably from the same company that places adware on you or are affiliated with them and to remove it, you need to pay them money which ranges from 19.95 to 39.95.
http://www.zerospyware.com/landingpage/?refid=82645 heres one of them but there are hundreds more
http://www.zerospyware.com/landingpage/?refid=82645 heres one of them but there are hundreds more
