alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Build Your Own Botnet CnC Exfil (POST)"; flow:established,to_server; urilen:13; http.method; content:"POST"; http.uri; content:"/api/file/add"; fast_pattern; http.content_type; bsize:16; content:"application/json"; http.request_body; content:"|7b|"; startswith; content:"|22|data|22 3a 20 22|"; distance:0; content:"|22|filename|22 3a 20 22|"; distance:0; content:"|22|type|22 3a 20 22|"; distance:0; content:"|22|owner|22 3a 20 22|"; distance:0; content:"|22|module|22 3a 20 22|"; distance:0; content:"|22|session|22 3a 20 22|"; distance:0; reference:md5,7252fa77ac86ebe1fea804ec82bf62f0; classtype:command-and-control; sid:2060057; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Mac_OSX, affected_product Linux, attack_target Client_Endpoint, tls_state plaintext, created_at 2025_02_13, deployment Perimeter, confidence High, signature_severity Major, tag c2, updated_at 2025_02_13, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol; target:src_ip;)