alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/AZORult V3.2 Client Checkin M23"; flow:established,to_server; http.method; content:"POST"; http.request_body; content:"|4a|"; depth:1; pcre:"/^(?:[\x4b-\x4c]|[\x48-\x49]|[\x4e-\x4f]|\x2f\xfb)/R"; content:"|2f fb 3f 2f fb 3e 2f fb 3c 4b 8a 48 2f fb 3b 2f fa 49 48|"; distance:10; within:45; fast_pattern; http.header_names; content:!"|0d 0a|Referer|0d 0a|"; classtype:command-and-control; sid:2034051; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_09_30, deployment Perimeter, malware_family AZORult, performance_impact Low, confidence High, signature_severity Major, updated_at 2022_08_30;)