alert tcp $EXTERNAL_NET 3724 -> $HOME_NET any (msg:"ET GAMES World of Warcraft failed logon"; flow:established,from_server; content:"|01 0A|"; depth:2; classtype:policy-violation; sid:2002139; rev:5; metadata:created_at 2010_07_30, confidence High, signature_severity Informational, updated_at 2019_07_26;)