ET MALWARE MSIL/Spy.Keylogger.ENJ Variant CnC Activity

Query · suricata

flow:established,to_server;
http.request_line;
content:"POST /api/webhooks/"; depth:19;
http.host;
content:"discord.com";
http.content_type;
content:"application/x-www-form-urlencoded"; bsize:33;
http.request_body;
content:"username=New+User+open+your+virus&content=%60%60%60%0aUser+name+%3a+"; startswith; fast_pattern;
Raw source ET MALWARE MSIL/Spy.Keylogger.ENJ Variant CnC Activity · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE MSIL/Spy.Keylogger.ENJ Variant CnC Activity";
    flow:established,to_server;
    http.request_line;
    content:"POST /api/webhooks/"; depth:19;
    http.host;
    content:"discord.com";
    http.content_type;
    content:"application/x-www-form-urlencoded"; bsize:33;
    http.request_body;
    content:"username=New+User+open+your+virus&content=%60%60%60%0aUser+name+%3a+"; startswith; fast_pattern;
    reference:md5,9b48e6da117f45841cb629964af7e463;
    classtype:command-and-control;
    sid:2031648; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_02_23, deployment Perimeter, deployment SSLDecrypt, malware_family MSIL_Spy_Keylogger_ENJ, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_02_23;
)

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