Airpwn is a platform for injecting application layer data on an 802.11b network. Airpwn requires two 802.11b interfaces, one for listening, and another for injecting. It uses a config file with multiple config sections to respond to specific data packets with arbitrary content.
You can download it from the following link: https://packetstormsecurity.com/files/download/34015/airpwn-0.50c.tar.gz
Source: https://packetstormsecurity.com/files/34015/airpwn-0.50c.tar.gz.html