alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE APT/TransparentTribe Style Request"; flow:established,to_server; http.uri; content:"|2f 50 30 75 72 57 61 31 74 33 5f 72 21 65 73 2f|"; fast_pattern; http.header_names; content:!"Referer"; reference:md5,77549b8211c05fdf9114b09d38e88d98; classtype:command-and-control; sid:2029241; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_01_09, deployment Perimeter, malware_family TransparentTribe, confidence High, signature_severity Major, updated_at 2020_01_09;)