Rootkit Hunter is scanning tool to ensure you for about 99.9% you're
clean of nasty tools. 

This tool scans for rootkits, backdoors and local exploits by running
tests like:

- MD5/SHA1 hash compare
- Look for default files used by rootkits
- Wrong file permissions for binaries
- Look for suspected strings in LKM and KLD modules
- Look for hidden files
- Optional scan within plaintext and binary files

WWW: http://www.rootkit.nl/