alert tcp $EXTERNAL_NET any -> $HOME_NET 79 (msg:"GPL MISC Finger bomb attempt"; flow:to_server,established; content:"@@"; reference:arachnids,381; reference:cve,1999-0106; classtype:attempted-dos; sid:2100328; rev:10; metadata:created_at 2010_09_23, signature_severity Informational, updated_at 2019_07_26;)