ET HUNTING Win32/BROOXML Document Fingerprint

Query · suricata

flow:established,to_client;
flowbits:set,ET.brooxml;
flowbits:noalert;
http.response_body;
content:"|21 20 03 20 c3 be c3 bf 09 20|";
content:"|06 20 20 20 20 20 20 20 20 20 20 20 01 20 20 20 06 20 20 20 20 20 20 20 20 10 20 20 05 20 20 20 01 20 20 20 c3 be c3 bf c3 bf c3 bf|"; fast_pattern; within:45;
target:dest_ip;

Rule dependencies

Feeds into

Raw source ET HUNTING Win32/BROOXML Document Fingerprint · 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 any any -> $HOME_NET any (
    msg:"ET HUNTING Win32/BROOXML Document Fingerprint";
    flow:established,to_client;
    flowbits:set,ET.brooxml;
    flowbits:noalert;
    http.response_body;
    content:"|21 20 03 20 c3 be c3 bf 09 20|";
    content:"|06 20 20 20 20 20 20 20 20 20 20 20 01 20 20 20 06 20 20 20 20 20 20 20 20 10 20 20 05 20 20 20 01 20 20 20 c3 be c3 bf c3 bf c3 bf|"; fast_pattern; within:45;
    reference:md5,95286eccb7381d763eed290a943b6dad;
    classtype:bad-unknown;
    sid:2057736; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2024_11_20, deployment Perimeter, deployment Internal, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_11_20;
    target:dest_ip;
)

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