alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET HUNTING EXE Downloaded from Github"; flow:established,to_client; http.stat_code; content:"200"; http.header_names; content:"|0d 0a|X-GitHub-Request-Id|0d 0a|"; fast_pattern; file_data; content:"MZ"; within:2; byte_jump:4,58,relative,little; content:"PE|00 00|"; distance:-64; within:4; classtype:misc-activity; sid:2029573; rev:1; metadata:attack_target Client_Endpoint, created_at 2020_03_04, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence Medium, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_03_04;)