Zlob

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

%SYSTEM%\duzakwq.dll

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler]
"{7ca07c92-0ab2-4346-b119-a076695d46ed}"="hemielytron"

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

SmitfraudFix removes the infection.