alert tls $HOME_NET any -> any any (msg:"ET MALWARE Win32/TA569 Gholoader CnC Domain in TLS SNI (mgmt .studerandson .us)"; flow:established,to_server; tls.sni; bsize:20; content:"mgmt.studerandson.us"; fast_pattern; nocase; reference:url,community.emergingthreats.net/t/et-socgholish-rules-response-guidance/335; classtype:domain-c2; sid:2063563; rev:3; metadata:attack_target Client_Endpoint, tls_state TLSEncrypt, created_at 2025_07_18, deployment Perimeter, malware_family SocGholish, performance_impact Low, confidence High, signature_severity Critical, tag ta569, tag compromised_website, updated_at 2026_06_08, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1189, mitre_technique_name Drive_by_Compromise; target:src_ip;)