alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/AZORult V3.3 Client Checkin M23"; flow:established,to_server; http.method; content:"POST"; http.request_body; pcre:"/^(?:\x00\x00\x00)?(?:[\x40-\x42]|[\x45-\x47]|\x26\x66)/R"; content:"|70 9c 47 70 9d 31 70 9d 30 70 9d 32 14 ec 46 70 9d 35 17 8b 31 11|"; distance:6; within:47; http.header_names; content:!"|0d 0a|Referer|0d 0a|"; classtype:command-and-control; sid:2034054; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2021_09_30, deployment Perimeter, malware_family AZORult, performance_impact Low, confidence High, signature_severity Major, updated_at 2022_08_30;)