The Middler is a Man in the Middle tool to demonstrate protocol middling attacks. Led by Jay Beale, the project involves a team of authors including InGuardians agents Justin Searle and Matt Carpenter. The Middler is intended to man in the middle, or "middle" for short, every protocol for which we can create code.

In our first alpha release, we released a core built by Matt and Jay, with introductory plug-ins by Justin and InGuardians agent Tom Liston. It runs on Linux and Mac OS X, with most of the code functional on Windows. The current codebase is in the beta state, with a full release coming soon, with better documentation (see the wiki), easier installation, and even more plug-ins, at least if Justin has his way!

Platform: Windows/Linux/BSD/Mac OS;License: GNU General Public License v2

Reference: https://code.google.com/p/middler/