alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE DeskRAT CnC Command Inbound (browse_files)"; flow:established,to_client; content:"|7b 22|type|22 3a 22|browse|5f|files|22 2c 22|data|22 3a 7b 22|path|22 3a 22|C|3a 5c 5c|Users"; depth:55; fast_pattern; content:"|22 2c 22|requesting|5f|web|5f|client|22 3a 22|"; threshold:type limit,count 1,seconds 300,track by_dst; classtype:command-and-control; sid:2066660; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2026_01_09, deployment Perimeter, deployment SSLDecrypt, malware_family DeskRAT, confidence High, signature_severity Critical, updated_at 2026_01_09; target:dest_ip;)