alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE VampireBot CnC Config Inbound"; flow:established,to_client; flowbits:isset,ET.Vampire.Config; http.response_body; content:"|7b 22|success|22 3a|true"; startswith; content:"|7b 22|captureQuality|22 3a|"; fast_pattern; content:"|22|captureInterval|22 3a|"; content:"|22|viewedAt|22 3a|"; reference:md5,24670706f0a2cb915fcb683ba4cf55a6; classtype:command-and-control; sid:2064737; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2025_09_16, deployment Perimeter, deployment SSLDecrypt, malware_family VampireBot, confidence High, signature_severity Critical, tag c2, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_09_16, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol; target:dest_ip;)