IE Defender/Files Secure/MalwareBell/IE Antivirus Codec has been update, it installs a file with semi-random filename composed from fragment words: a, amo, amos, vid, video, v
Possible filenames are: avid.dll, avideo.dll, av.dll, amovid.dll, amovideo.dll, amov.dll, amosvid.dll, amosvideo.dll, amosv.dll.
It displays alert messages with popups that download IE Antivirus:
Use SmitfraudFix to remove the infection.