alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE JsOutProx CnC Activity - Outbound"; flow:established,to_server; http.method; content:"POST"; http.cookie; content:"5f7c5f"; depth:35; content:"5f7c5f"; distance:72; within:6; content:"5f7c5f4d6963726f736f66742057696e646f7773"; distance:0; fast_pattern; http.content_type; content:"x-www-form-urlencoded"; nocase; threshold:type limit, track by_dst, count 1, seconds 30; classtype:command-and-control; sid:2034289; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_12_10, deployment Perimeter, malware_family jsoutprox, confidence High, signature_severity Major, tag RAT, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_12_10;)