alert http $HOME_NET any -> any any (msg:"ET MALWARE DuvetStealer C2 (send-zip) Traffic Outbound"; flow:established,to_server; http.method; content:"POST"; http.uri; bsize:13; content:"/api/send-zip"; fast_pattern; http.user_agent; content:"axios|2f|"; http.content_type; content:"multipart|2f|form|2d|data|3b|"; http.request_body; content:"filename|3d 22|duvetstealer|2d|"; reference:url,x.com/naumovax/status/1911775775558177166; classtype:trojan-activity; sid:2061542; rev:1; metadata:attack_target Client_Endpoint, tls_state plaintext, created_at 2025_04_14, deployment Perimeter, confidence High, signature_severity Major, tag c2, updated_at 2025_04_14, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol; target:src_ip;)