ET HUNTING Base64 Encoded Windows IP Configuration Output in HTTP POST M3

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.request_body;
content:"dpbmRvd3MgSVAgQ29uZmlndXJhdGlvbg0KDQogICBIb3N0IE5hbWUgLi";
Raw source ET HUNTING Base64 Encoded Windows IP Configuration Output in HTTP POST M3 · 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 HUNTING Base64 Encoded Windows IP Configuration Output in HTTP POST M3";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.request_body;
    content:"dpbmRvd3MgSVAgQ29uZmlndXJhdGlvbg0KDQogICBIb3N0IE5hbWUgLi";
    classtype:bad-unknown;
    sid:2033736; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2021_08_16, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_08_16;
)

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