ET HUNTING Terse Request for EXE from DigitalOcean Spaces

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:".exe"; endswith;
http.host;
content:".digitaloceanspaces.com"; endswith; fast_pattern;
http.header_names;
content:!"|0d 0a|User-Agent|0d 0a|";
content:!"|0d 0a|Referer|0d 0a|";
content:!"|0d 0a|Accept";
Raw source ET HUNTING Terse Request for EXE from DigitalOcean Spaces · 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 HUNTING Terse Request for EXE from DigitalOcean Spaces";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:".exe"; endswith;
    http.host;
    content:".digitaloceanspaces.com"; endswith; fast_pattern;
    http.header_names;
    content:!"|0d 0a|User-Agent|0d 0a|";
    content:!"|0d 0a|Referer|0d 0a|";
    content:!"|0d 0a|Accept";
    classtype:bad-unknown;
    sid:2032359; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2021_04_01, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_04_01;
)

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