1/25: Sdbot-TW Worm Has Backdoor Functions
January 25, 2005

W32/Sdbot-TW is a network worm with backdoor functionality. It attempts to spread to network shares with weak passwords. The worm also connects to an IRC server and runs in the background listening for backdoor commands from a remote attacker.

The backdoor functionality of the worm includes being able to download and run code and participate in DDoS attacks.

More information can be found at Sophos page.