alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET POLICY Hotmail Compose Message Submit Data"; flow:to_server,established; content:"curmbox="; nocase; content:"login="; nocase; content:"msghdrid"; nocase; content:"sigflag="; nocase; classtype:policy-violation; sid:2000039; rev:11; metadata:created_at 2010_07_30, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)