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/50786/airpwn-1.3.tgz
Source: https://packetstormsecurity.com/files/50786/airpwn-1.3.tgz.html