The clamav-unofficial-sigs script provides a simple way to download, test, and update third-party signature databases provided by Sanesecurity, SecuriteInfo, MalwarePatrol, OITC, etc. The package also contains cron, logrotate, and man files.
using this for spam-detection with clamav and it just works fine. only updating the config (which DB's i want to use) after script-updates is a bit messy.
Easy for use.