[OPENSSH] SYSLOG Authentication failure - Brute force [5/5]

drop any $EXTERNAL_NET any -> $HOME_NET any (msg:"[OPENSSH] SYSLOG Authentication failure - Brute force [5/5]"; content: "ssh
| 3a
| failed login attempt"; xbits: set,brute_force,track ip_src, expire 21600; default_proto: tcp; default_dst_port: $SSH_PORT; classtype: brute-force; program: syslog; after: track by_src, count 5, seconds 300; parse_src_ip: 1; threshold: type suppress, track by_src, count 1, seconds 300; sid: 5001954; rev:17;)