ET ADWARE_PUP Malicious Adware Chrome Extension Detected (2)

Query · suricata

flow:established,to_server;
http.uri;
content:"/?keyword="; fast_pattern;
content:"&id="; distance:0;
content:"&sysid="; distance:0;
http.header_names;
content:"|0d 0a|User-Agent|0d 0a|";
content:"|0d 0a|Upgrade-Insecure-Requests|0d 0a|";
content:"|0d 0a|Accept";
content:"|0d 0a|Connection|0d 0a|";
Raw source ET ADWARE_PUP Malicious Adware Chrome Extension Detected (2) · 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 Malicious Adware Chrome Extension Detected (2)";
    flow:established,to_server;
    http.uri;
    content:"/?keyword="; fast_pattern;
    content:"&id="; distance:0;
    content:"&sysid="; distance:0;
    http.header_names;
    content:"|0d 0a|User-Agent|0d 0a|";
    content:"|0d 0a|Upgrade-Insecure-Requests|0d 0a|";
    content:"|0d 0a|Accept";
    content:"|0d 0a|Connection|0d 0a|";
    reference:url,blog.0day.rocks/malicious-chrome-extension-meddling-with-your-searches-581aa56ddc9c;
    classtype:pup-activity;
    sid:2024727; rev:5;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Web_Browsers, affected_product Web_Browser_Plugins, attack_target Client_Endpoint, created_at 2017_09_19, deployment Perimeter, performance_impact Low, confidence High, signature_severity Minor, updated_at 2024_03_12;
)

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