GOOGLE is your friend:
http://www.answersthatwork.com/Tasklist_pages/tasklist_m.htm
→ search for MOSTAT there, and read the info…

==> Install & update SPYBOT (from www.lurkhere.com → nicefiles), then scan & fix with it severall times. reboot, and scan with avast again…

And exercise more caution when installing filesharing (or any other disreputable) programs in the future
:wink: :wink: