Win32/Mitglieder is a family of trojan downloaders and backdoor trojans. Win32/Mitglieder may download and run files from various URLs. It may capture data from Internet Explorer windows. The trojan may also open backdoors on local TCP ports in order to host an FTP server, enable access to the host computer through a remote shell, or allow the host computer to serve as a proxy to relay network traffic. Win32/Mitglieder may use various means to disable or bypass local security-related software.