Zlob

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

%SYSTEM%\vimhx.dll

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler]
"{d04bbe06-7ce7-405e-8730-cd56d9531cbb}"="bismuthiferous"

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

SmitfraudFix removes the infection.