alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Exvicy CnC Panel Response"; reference:url,sekoia.com/blog/exvicy-a-copycat-of-the-errtraffic-malware-distribution-frameworks; reference:md5,77efad936a01ed754dcfeae281d7d521; classtype:trojan-activity; sid:2071885; rev:2; metadata:affected_product Windows_Client, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2026_09_01, deployment Perimeter, deployment SSLDecrypt, malware_family exvicy, confidence High, signature_severity Critical, tag c2, updated_at 2026_09_24, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)