alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Ares Loader Checkin"; flow:established,to_server; http.method; content:"POST"; http.request_body; content:"|22 7b 5c 22|ip|5c 22 3a 20 27|"; startswith; fast_pattern; content:"|27 2c 20 5c 22|UID|5c 22 3a 20 27|0x"; content:"|27 2c 20 5c 22|service|5c 22 3a 20 27|"; content:"|27 2c 20 5c 22|owner|5f|token|5c 22 3a 20 27|"; reference:md5,82acd827f36e29c05e6581558b0d76ca; reference:url,tria.ge/230317-23cpnacd5t/behavioral2; classtype:command-and-control; sid:2044690; rev:1; metadata:attack_target Client_Endpoint, created_at 2023_03_20, deployment Perimeter, malware_family AresLoader, performance_impact Low, confidence High, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_03_20; target:src_ip;)