Try one of the online freebies (that runs online scans) to detect, and possibly remove any.

Install one of the freebies. I use both AWG and Avast, together with Comodo firewall protection. Call me a Freegan. All three for $0.00. Beats any other commercial products for my purpose.

If any success, or failure, share with us as it might help others.

Good luck.

_x