Christian Eichelmann from the Wolpertinger project will be speaking in Saal 3 starting at 11:30.
It is a distributed portscanner, which actually doesn’t do anything else than scan (tcp-)ports. But it is fast. Really fast. So fast you can scan Class-B networks before you have to retire. And it is available from here. The output lands in a database (SQLite) you can do with that what you want. It runs on linux and is open source.