ET HUNTING Suspicious Possible CollectGarbage in base64 1

Query · suricata

flow:established,from_server;
file_data;
content:"Q29sbGVjdEdhcmJhZ2U";
Raw source ET HUNTING Suspicious Possible CollectGarbage in base64 1 · 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 $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET HUNTING Suspicious Possible CollectGarbage in base64 1";
    flow:established,from_server;
    file_data;
    content:"Q29sbGVjdEdhcmJhZ2U";
    classtype:misc-activity;
    sid:2016825; rev:3;
    metadata:created_at 2013_05_07, confidence Medium, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;
)

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