alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE SocGholish Domain in TLS SNI (sommelier .peppertreecanyon .com)"; flow:established,to_server; tls.sni; bsize:30; content:"sommelier.peppertreecanyon.com"; fast_pattern; reference:url,community.emergingthreats.net/t/et-socgholish-rules-response-guidance/335; classtype:trojan-activity; sid:2048506; rev:2; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2023_10_09, deployment Perimeter, deprecation_reason Relevance, malware_family SocGholish, performance_impact Low, confidence High, signature_severity Major, tag compromised_website, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_02_08, reviewed_at 2024_02_08, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)