The Morris Worm (Part 3): How it Guessed Passwords
As part of its propagation mechanisms, the Morris Worm attempted to determine the passwords of the users on the system it had just compromised. Specifically, the Morris Worm tried to employ a password dictionary attack. This video, by Sourcefire Chief Scientist Zulfikar Ramzan, describes the specific dictionary attack mechanisms espoused by the Morris Worm. The video is part of a multi-part series on the Morris Worm.