IE Defender/Files Secure/MalwareBell/IE Antivirus/Total Secure 2009 Codec has been update, it installs a file with semi-random filename composed from a dictionary:
qip, vxf, auz, ecg, ax, kco
Possible filenames are:
qipauzax.dll, qipauzkco.dll, qipecgax.dll, qipecgkco.dll, vxfauzax.dll, vxfauzkco.dll, vxfecgax.dll, vxfecgkco.dll
It displays alert messages with popups that download WinDefender 2009:
It also drops Internet Shortcut on the desktop, Favorites, Start Menu: Cheap Pharmacy Online.url , Search Online.url, SMS Trap.url and VIP Casino.url
Once installed, it connects to a server, downloads a config. file that contains various error messages to display and URL of malwares to download and installs.
Use SmitfraudFix to remove the infection.