alert tcp $EXTERNAL_NET any -> $HOME_NET 79 (msg:"GPL SCAN Finger Search Query"; flow:to_server,established; content:"search"; reference:arachnids,375; reference:cve,1999-0259; classtype:attempted-recon; sid:2100322; rev:12; metadata:created_at 2010_09_23, signature_severity Informational, updated_at 2019_07_26;)