alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Stealerium CnC Exfil via Discord (POST)"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/api/webhook"; startswith; http.host; content:"discord.com"; endswith; http.request_body; content:"|f0 9f 98 b9 20 2a|Stealerium|20 2d 20|Report|3a 2a|"; fast_pattern; reference:url,github.com/witchfindertr/Stealerium; classtype:trojan-activity; sid:2063893; 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_08_04, deployment Perimeter, deployment SSLDecrypt, malware_family Stealerium, confidence High, signature_severity Critical, tag c2, updated_at 2025_08_04, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol; target:src_ip;)