Rule History

alert tls $HOME_NET any -> any any (msg:"ET MALWARE Win32/TA569 Gholoader CnC Domain in TLS SNI (updates .highendmark .com)"; flow:established,to_server; tls.sni; bsize:23; content:"updates.highendmark.com"; fast_pattern; nocase; reference:url,community.emergingthreats.net/t/et-socgholish-rules-response-guidance/335; classtype:domain-c2; sid:2064034; rev:1; metadata:attack_target Client_Endpoint, tls_state TLSEncrypt, created_at 2025_08_17, deployment Perimeter, malware_family SocGholish, confidence High, signature_severity Major, tag ta569, tag compromised_website, updated_at 2025_08_22, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1189, mitre_technique_name Drive_by_Compromise; target:src_ip;)