Fuzzing
Fuzzing is a technology that can be used to automatically find security
vulnerabilities in applications. I am developing a fuzzer called FuzzIT which
when the project started was a file format fuzzer. Now it became a general
purpose fuzzer with lots of capabilities in the form of plugins. The program is
written in python and can be downloaded here.

Rootkit technology
I am developing a new version of the FUTo rootkit. The original version supports
OSs until Windows Server 2003 SP0. The new version supports the most recent
versions of Microsoft's OSs including Windows Server 2008 SP1. A lot of
modification was done in the original code in order to support the latest
windows versions.

A new functionality called "token stealing" developed by me is included in the
latest version. With this technique a process is capable to use the access token
of another token. It is usefull under Windows Server 2008, because modifying an
access token is not trivial any more.
The research paper about toke stealing can be downloaded here.

The current version supports the following versions of Windows:
  * Windows XP SP0, SP1, SP2, SP3
  * Windows Server 2003 SP0, SP2
  * Windows Server 2008 SP1, SP2
  * Windows 7 Beta (build 7000)
  * Windows 7 SP0

Computer Forensic
Andreas Schuster developed a technique for finding processes in memory images of
Windows OSs. The software that is using this technique is called ptfinder.
The ptfinder versions for Windows Server 2008 SP1, 2003 SP2 and Windows 7 beta
are developed by me, and can be downloaded here.

The details of the technique can be found here. A presentation delivered by me
(in hungarian) can be downloaded here.