ET MALWARE Umbra/Multibot Loader User-Agent (umbra)

Query · suricata

flow:established,to_server;
http.user_agent; bsize:5;
content:"umbra";
Raw source ET MALWARE Umbra/Multibot Loader User-Agent (umbra) · 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 MALWARE Umbra/Multibot Loader User-Agent (umbra)";
    flow:established,to_server;
    http.user_agent; bsize:5;
    content:"umbra";
    reference:url,malware.dontneedcoffee.com/2013/02/inside-multi-botnet-ver4-c-panel.html;
    classtype:trojan-activity;
    sid:2016366; rev:5;
    metadata:created_at 2013_02_08, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_10;
)

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