Rule History

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Observed Anonymous File Sharing Service Domain (file-drop .cc in TLS SNI)"; flow:established,to_server; tls.sni; bsize:12; content:"file-drop.cc"; fast_pattern; classtype:misc-activity; sid:2051968; rev:1; metadata:attack_target Client_Endpoint, created_at 2024_04_10, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_10;)