I received this message this morning, I have searched but could not find any reference.
/etc/cron.daily/01-rkhunter:
Warning: Download of 'programs_bad.dat' failed: Unable to determine the latest version number.
Warning: Download of 'backdoorports.dat' failed: Unable to determine the latest version number.
Warning: Download of 'i18n.ver' failed: Unable to determine the latest version number.
One or more warnings have been found while checking the system.
Please check the log file (/var/log/rkhunter.log)
Any help would be appreciated.