Zlob

Zlob fake codec has been update. It drops the following file:

%SYSTEM%\gcqltg.dll

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler]
"{ba934431-76af-4c99-93c2-c3d21944a72e}"="gey"

It also installs Toolbar, BHO, Virus Response Lab 2009 software...

SmitfraudFix removes the infection.