alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE IP_LOGGER CnC Server Response (SERVER_OK)"; flow:established,to_client; flowbits:isset,ET.iplogger.checkin; http.response_body; bsize:9; content:"SERVER_OK"; reference:md5,c0d8b3bf6428b677f7d072aae79d937b; classtype:command-and-control; sid:2063148; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state plaintext, created_at 2025_06_23, deployment Perimeter, confidence High, signature_severity Critical, tag c2, updated_at 2025_06_23, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol; target:dest_ip;)