ET MALWARE Zyklon CnC Activity

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:".php"; endswith;
http.request_body;
content:"token="; startswith; fast_pattern;
content:"&hwid="; distance:44; within:6;
threshold:type limit, track by_src, count 1, seconds 120;
Raw source ET MALWARE Zyklon 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 Zyklon CnC Activity";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:".php"; endswith;
    http.request_body;
    content:"token="; startswith; fast_pattern;
    content:"&hwid="; distance:44; within:6;
    threshold:type limit, track by_src, count 1, seconds 120;
    reference:url,twitter.com/500mk500/status/1301173604072202248;
    reference:md5,3c8afeb46c1e1a217c0f108c3fb5f4f4;
    classtype:command-and-control;
    sid:2030823; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_09_02, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_02;
)

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