alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win64/FakeUnity CnC Activity (POST)"; flow:established,to_server; http.method; content:"POST"; http.uri; content:".asp"; endswith; http.header_names; content:!"|0d 0a|Referer|0d 0a|"; http.request_body; content:"ODU0NjU2bklyeTJUSzlpaQ=="; fast_pattern; classtype:trojan-activity; sid:2051697; rev:1; metadata:attack_target Client_Endpoint, created_at 2024_03_19, deployment Perimeter, malware_family Win64_FakeUnity, confidence High, signature_severity Major, tag c2, updated_at 2024_03_19, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)