Rule History

alert tcp $EXTERNAL_NET any -> $HOME_NET 25 (msg:"ET POLICY Possible Reference to Al Qaeda Propaganda Theme (Al-Wala' Wal Bara) SMTP"; flow: to_client,established; content:"Al-Wala' Wal Bara"; nocase; threshold: type threshold, track by_dst,count 5, seconds 360; classtype:policy-violation; sid:2010591; rev:4; metadata:created_at 2010_07_30, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)