Rule History

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE ClickFix Domain in TLS SNI (gertioma .top)"; flow:established,to_server; tls.sni; dotprefix; content:".gertioma.top"; endswith; fast_pattern; reference:url,app.any.run/tasks/f132828d-adb0-4deb-9865-194a11ea5f59; reference:url,www.proofpoint.com/us/blog/threat-insight/clipboard-compromise-powershell-self-pwn; classtype:trojan-activity; sid:2056738; rev:1; metadata:attack_target Client_Endpoint, created_at 2024_10_21, deployment Perimeter, malware_family ClickFix, confidence High, signature_severity Major, tag SSL_Malicious_Cert, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_10_21, reviewed_at 2025_05_14, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)