alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET INFO Yahoo Mail Message Send"; flow:established,to_server; http.uri; content:"/ym/Compose"; nocase; classtype:policy-violation; sid:2000044; rev:12; metadata:created_at 2010_07_30, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_05;)