alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE ContEXE Stealer Heartbeat Check - C2 Response"; flow:established,to_client; xbits:isset,ET.ContEXE_Stealer,track ip_pair; http.stat_code; content:"200"; file.data; content:"|22|ok|22|"; content:"|22|service|22|"; content:"|22|s3_mock|22|"; fast_pattern; content:"|22|object_lock|22|"; content:"|22|time|22|"; reference:md5,9c1d8a309c1ef2d781c5503cfcd96f53; reference:md5,ccfcb42c83ff8315662d54c560a2c8e2; classtype:trojan-activity; sid:2072365; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2026_10_05, deployment Perimeter, deployment SSLDecrypt, malware_family ContEXE_Stealer, confidence High, signature_severity Major, tag Stealer, updated_at 2026_10_05, mitre_tactic_id TA0009, mitre_tactic_name Collection, mitre_technique_id T1005, mitre_technique_name Data_from_local_system; target:dest_ip;)