Mitglieder.FM is a Trojan that prevents the user from accessing several websites, mostly belonging to antivirus companies, disables several system services, deletes certain files and several Windows Registry editing tools, etc.
Mitglieder.FM injects the executable file ANTIAV_DLL.DLL in the system process EXPLORER.EXE, in order to carry out its actions.
Mitglieder.FM does not spread automatically using its own means. It needs an attacking user's intervention in order to reach the affected computer. The means of transmission used include, among others, floppy disks, CD-ROMs, email messages with attached files, Internet downloads, FTP, IRC channels, peer-to-peer (P2P) file sharing networks, etc.