Funded Projects


Led Projects


Own Open Source Projects

  • WendzelNNTPd - a NNTP daemon (2004-now)
  • AstroCam stepengine control software (2001-2011)
  • Some tiny security hacks:
    • KSPIDS - Linux Kernel User Profile IDS Patch (2008)
    • openportd - ICMP port knocking service for OpenBSD (2006)
    • FUPIDS - "Fuzzy" User Profile IDS for the OpenBSD Kernel (2003)
  • covert channel/tunneling software:
    • pct - protocol channel tool (PoC, 2008)
    • phcct - protocol hopping covert channel tool (PoC, 2007)
    • vstt - ICMP, POP3 and plaintext tunnel via fifo/socket in/out (2006) 
    • pcaw: (protocol channel-aware active warden) a countermeasure for protocol switching covert channels (code available on request, 2012)
  • Other tiny hacks:
    • sfnetmapper - visualizes connections of users and their projects (2011)
    • creategallery - fast creator for ugly HTML galleries (2009)
    • Fluxbat - displays laptop battery status in the fluxbox menu (2007)
    Very old stuff (2000-2009), mostly not accessible anymore:
    • OBPkg (external link): a Synaptic-like tool for OpenBSD
    • WDCS (external link): a distributed computing library 
    • cwa: a web programming system for C (like PHP)
    • xyriahttpd (a.k.a. cchttpd): a highly speed-optimized HTTP server, capable of loading C modules to perform server-side website generation and request handling
    • xyriaDNSd: a highly speed-optimized DNS server with load-balancing capabilities (old version from 2008 available on sourceforge)
    • sysmon: web-based system monitoring tool for Solaris 8
    • MSS: Multiple server scanner (a port scanner supporting various scan types; written ca. 2001 with friends)
    • cpfos: An extended Slackware-based packet system for Hardened Linux
    • fupids2: a user-space version of FUPIDS (see above)
    • various hacking tools, mostly to learn how to handle sockets under Linux and BSD, incl. a RIP routing update spoofer, some PoC backdoors using covert channels, and a a simple TCP connection hijacker.


    Maintainance of OpenBSD Ports

    Years ago (2006?), I contributed the `pscan' (C code vulnerability scanner) port to OpenBSD.


    Patches for Other Projects

    I contributed several patches to the Open Source Software (OSS) community, including mostly bugfixes but also few feature improvements:
    • Operating Systems: Slackware Linux, OpenBSD
    • Tools: gftp, icmpinfo, Ping Tunnel
    • A number of tiny manpage fixes (mostly Ubuntu/Debian)