Michael Boelen is the author of Rootkit Hunter, an open source rootkit scanner that runs mostly on Linux and BSD distributions.
His favorite motto: "There is always room to improve and I will hunt for it!"
He is also the author of Lynis, an auditing tool for Unix (specialists).
http://nl.linkedin.com/in/mboelen
http://packetstormsecurity.com/files/author/3011/
http://www.rootkit.nl/about/
https://twitter.com/mboelen