Trivia 400: http://www.screentoaster.com/watch/stVE1RQE1IR15bRllaUlxdXlRS/pwning_trivia_400_at_defcon_18_quals
Pretty lame ‘chat.php‘ and its base.txt
Pwnable 200: http://www.screentoaster.com/watch/stVE1RQE1IR15bRllUX1xdUV5d/pwning_pwnable_200_at_defcon_18_quals
Port number bruteforcer (c) hellman
Binary 300: http://www.screentoaster.com/watch/stVE1RQE1IR15bRllVWV9QVl9T/pwning_binary_300_at_defcon_18_quals