Zlob fake codec has been update. It drops the following file:
%SYSTEM%\eivrbsi.dll
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler]
"{da75fab1-136e-4ead-834d-0e04fbd6edc1}"="euphuize"
It also installs Toolbar, BHO, Virus Response Lab 2009 software...
SmitfraudFix removes the infection.