alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET MALWARE Win32/AZORult V3.3 Client Checkin M13";
flow:established,to_server;
http.method;
content:"POST";
http.request_body;
pcre:"/^(?:\x00\x00\x00)?(?:[\x40-\x42]|[\x45-\x47]|\x26\x66)/P";
content:"|26 67 ea 26 66 97 26 66 9a 26 66 9f 26 66 9a 26 66 97 26 66 9e 26 66 99 42 70 9c 47|"; distance:6; within:53; fast_pattern;
http.header_names;
content:!"|0d 0a|Referer|0d 0a|";
classtype:command-and-control;
sid:2029466; rev:3;
metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_02_14, deployment Perimeter, malware_family AZORult, performance_impact Low, confidence High, signature_severity Major, updated_at 2022_08_30;
)