alert tcp $HOME_NET any -> $EXTERNAL_NET 8074 (msg:"ET CHAT GaduGadu Chat Keepalive PING"; flow:established,to_server; flowbits:isset,ET.gadu.loggedin; content:"|08 00 00 00|"; depth:4; reference:url,piotr.trzcionkowski.pl/default.asp?load=/programy/pppgg_protokol.html; classtype:policy-violation; sid:2008304; rev:5; metadata:created_at 2010_07_30, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_15;)