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:
game, g, gmx, X, sxt, ap
Possible filenames are:
gameX.dll, gamesxt.dll, gameap.dll, gX.dll, gsxt.dll, gap.dll, gmxX.dll, gmxsxt.dll, gmxap.dll
It displays alert messages with popups that download Total Secure 2009:
Use SmitfraudFix to remove the infection.