alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE TA444 MacOS/ProcessRequest CnC Checkin"; flow:established,to_server; http.method; content:"POST"; http.content_type; content:"application/json"; http.user_agent; content:"CFNetwork/"; content:"Darwin/"; http.request_body; content:"|7b 22|sdf|22 3a 22|"; startswith; content:"|22 2c 22|info|22 3a 22|Version 1"; fast_pattern; distance:0; content:"|28|Build"; distance:0; reference:md5,a446402c1de5dfddd50b77a95fcfc671; reference:md5,9294648d744703cfa0456ec74d014fe4; classtype:trojan-activity; sid:2048315; rev:1; metadata:affected_product Mac_OSX, attack_target Client_Endpoint, created_at 2023_09_27, deployment Perimeter, malware_family ProcessRequest, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_09_27, reviewed_at 2023_09_27; target:src_ip;)