alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Generic Rust Stealer Exfiltration (POST)"; flow:established,to_server; urilen:7; http.method; content:"POST"; http.uri; content:"/upload"; http.header; content:"content|2d|disposition|3a 20|attachment|3b 20|filename|3d 22|C|3a 5c|Users|5c|"; fast_pattern; content:"client|2d|data|3a 20|uni|0d 0a|"; http.request_body; content:"|50 4b 03 04|"; startswith; content:"raw.txt"; distance:0; reference:md5,2ae83d03052046d76ca4f5a8a54b0fab; classtype:command-and-control; sid:2060936; 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_03_17, deployment Perimeter, confidence High, signature_severity Critical, tag c2, updated_at 2025_03_17, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol; target:src_ip;)