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;)