alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET MALWARE MSIL/Azula Logger CnC Activity";
flow:established,to_server;
http.request_line;
content:"POST /api/webhooks/"; startswith;
http.host;
content:"discord.com";
http.content_type;
content:"application/x-www-form-urlencoded"; bsize:33;
http.request_body;
content:"username=azula+logger&avatar_url="; startswith; fast_pattern;
reference:md5,7ad3777dfb916150e21e9414dd24c1da;
reference:url,github.com/CythosaSec/Azula-Logger;
classtype:command-and-control;
sid:2031470; rev:2;
metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_12_31, deployment Perimeter, deployment SSLDecrypt, malware_family MSIL_Azula, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_12_31;
)