ET MALWARE Win32/DownloadAdmin Activity

Query · suricata

flow:established,to_server;
http.uri;
content:"install|3f|"; nocase;
content:"country|3d|"; nocase;
http.user_agent;
content:"Tightrope Bundle Manager"; nocase;
http.header_names;
content:"|0d 0a|x|2d|webinstallcode|0d 0a|"; nocase;
content:"|0d 0a|x|2d|exename|0d 0a|"; nocase;
content:"|0d 0a|x|2d|webinstallurl|0d 0a|"; nocase;
threshold:type limit, track by_src, seconds 180, count 1;
Raw source ET MALWARE Win32/DownloadAdmin Activity · 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 MALWARE Win32/DownloadAdmin Activity";
    flow:established,to_server;
    http.uri;
    content:"install|3f|"; nocase;
    content:"country|3d|"; nocase;
    http.user_agent;
    content:"Tightrope Bundle Manager"; nocase;
    http.header_names;
    content:"|0d 0a|x|2d|webinstallcode|0d 0a|"; nocase;
    content:"|0d 0a|x|2d|exename|0d 0a|"; nocase;
    content:"|0d 0a|x|2d|webinstallurl|0d 0a|"; nocase;
    threshold:type limit, track by_src, seconds 180, count 1;
    reference:md5,36d8c484882c961b2f351bb4c73536e1;
    classtype:trojan-activity;
    sid:2033709; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2021_08_11, deployment Perimeter, malware_family Win32_DownloadAdmin, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_08_11;
)

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