Rule History

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed ClickFix Domain (bigops .s3 .us-east-2 .amazonaws .com in TLS SNI)"; flow:established,to_server; tls.sni; bsize:33; content:"bigops.s3.us-east-2.amazonaws.com"; fast_pattern; classtype:trojan-activity; sid:2057116; rev:1; metadata:attack_target Client_Endpoint, created_at 2024_10_28, deployment Perimeter, malware_family ClickFix, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_10_28, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)