IE Defender/Files Secure/MalwareBell/IE Antivirus Codec has been update, it installs a file with semi-random filename composed from fragment words: gold, gld, Gold, mng, man, Manager
Possible filenames are: goldmng.dll, goldman.dll, goldManager.dll, gldmng.dll, gldman.dll, gldManager.dll, Goldmng.dll, Goldman.dll, GoldManager.dll.
It displays alert messages with popups that download IE Antivirus:
Use SmitfraudFix to remove the infection.