alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/AZORult V3.2 Client Checkin M20"; flow:established,to_server; http.method; content:"POST"; http.request_body; content:"|4a|"; startswith; pcre:"/^(?:[\x4b-\x4c]|[\x48-\x49]|[\x4e-\x4f]|\x2f\xfb)/R"; content:"|48 8c 28 39 f8 28 39 f0 28 39 fc 28 39 fc 28 39 fe 28 38 8c 4f|"; distance:10; within:47; fast_pattern; http.header_names; to_lowercase; content:!"|0d 0a|referer|0d 0a|"; classtype:command-and-control; sid:2029486; rev:5; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_02_18, deployment Perimeter, malware_family AZORult, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_05_01;)