ET MALWARE IndigoZebra APT xCaon/Textpadx Activity (POST)

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/kw.asp"; endswith; fast_pattern;
http.request_body;
content:"d="; startswith;
content:"&k="; distance:0;
content:"&w="; distance:0;
http.header_names;
content:!"Referer";
Raw source ET MALWARE IndigoZebra APT xCaon/Textpadx Activity (POST) · Suricata
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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 IndigoZebra APT xCaon/Textpadx Activity (POST)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/kw.asp"; endswith; fast_pattern;
    http.request_body;
    content:"d="; startswith;
    content:"&k="; distance:0;
    content:"&w="; distance:0;
    http.header_names;
    content:!"Referer";
    reference:md5,3562bf97997c54d74f58d4c1ad84fcea;
    reference:url,research.checkpoint.com/2021/indigozebra-apt-continues-to-attack-central-asia-with-evolving-tools/;
    classtype:command-and-control;
    sid:2033219; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2021_07_02, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_07_02;
)

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