[CISCO-PIXASA] TCP access denied by ACL - Multiple Attempts [25/5]

alert any $EXTERNAL_NET any -> $HOME_NET any (msg: "[CISCO-PIXASA] TCP access denied by ACL - Multiple Attempts [25/5]"; append_program; content: "%ASA"; pcre: "/%ASA[-]+3-710003/"; default_proto: tcp; classtype: suspicious-traffic; normalize; parse_src_ip: 1; parse_dst_ip: 2; parse_port; threshold: type suppress, track by_src, count 1, seconds 86400; after: track by_src, count 25, seconds 300; sid: 5001714; rev: 12;)