ET ADWARE_PUP PacketShare Proxy Client Login (GET)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"|2f|CLogin|3f|key|3d|"; startswith; fast_pattern;
http.user_agent;
content:"Lingjiang"; bsize:9;
http.accept_enc;
content:"gzip"; bsize:4;
threshold:type limit, seconds 300, count 1, track by_src;
Raw source ET ADWARE_PUP PacketShare Proxy Client Login (GET) · 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 ADWARE_PUP PacketShare Proxy Client Login (GET)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"|2f|CLogin|3f|key|3d|"; startswith; fast_pattern;
    http.user_agent;
    content:"Lingjiang"; bsize:9;
    http.accept_enc;
    content:"gzip"; bsize:4;
    threshold:type limit, seconds 300, count 1, track by_src;
    reference:url,trendmicro.com/en_us/research/23/b/hijacking-your-bandwidth-how-proxyware-apps-open-you-up-to-risk.html;
    classtype:misc-activity;
    sid:2048498; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2023_10_09, deployment Perimeter, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, tag proxyware, updated_at 2023_10_09;
)

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