Install PHP Signatures to freshclam.conf

You can add malware expert ClamAV signatures to freshclam.conf file:

Also replace serial_key_here your subscription key (ex. 21r3jx79pcm9tj50z5lnuannp), if you dont have Buy subscription.

DatabaseCustomURL http://signatures.malware.expert/serial_key_here/malware.expert.ndb
DatabaseCustomURL http://signatures.malware.expert/serial_key_here/malware.expert.hdb
DatabaseCustomURL http://signatures.malware.expert/serial_key_here/malware.expert.ldb
DatabaseCustomURL http://signatures.malware.expert/serial_key_here/malware.expert.fp

Your buyed subscription key found in here!