Zlob fake codec has been update. It drops the following file:
%SYSTEM%\blbpeoy.dll
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler]
"{ecc974ae-6ede-44a2-90da-93b996d8eaf8}"="frizzed"
It also installs Toolbar, BHO, Antispycheck Rogue software...
SmitfraudFix removes the infection.