No (sorry) for your question, but may be you need to update in line before... if not already do.
in terminal: rkhunter --update Running updater...
Mirrorfile /var/rkhunter/db/mirrors.dat rotated Using mirror http://www.rootkit.nl/rkhunter [DB] Mirror file : Up to date [DB] MD5 hashes system binaries : Up to date [DB] Operating System information : Up to date [DB] MD5 blacklisted tools/binaries : Up to date [DB] Known good program versions : Up to date [DB] Known bad program versions : Up to date
Phil