ET PHISHING Browser Plugin Detect - Observed in Apple Phishing

Query · suricata

flow:to_server,established;
urilen:10;
http.method;
content:"POST";
http.uri;
content:"/ping.html";
http.header;
content:".html?appIdKey=";
http.request_body;
content:"data=eyJwbHVnaW4i"; depth:17; fast_pattern;
pcre:"/^data=(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})$/i";
Raw source ET PHISHING Browser Plugin Detect - Observed in Apple Phishing · 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 -> $EXTERNAL_NET any (
    msg:"ET PHISHING Browser Plugin Detect - Observed in Apple Phishing";
    flow:to_server,established;
    urilen:10;
    http.method;
    content:"POST";
    http.uri;
    content:"/ping.html";
    http.header;
    content:".html?appIdKey=";
    http.request_body;
    content:"data=eyJwbHVnaW4i"; depth:17; fast_pattern;
    pcre:"/^data=(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})$/i";
    classtype:bad-unknown;
    sid:2024978; rev:2;
    metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2017_11_08, deployment Perimeter, confidence Medium, signature_severity Minor, tag Phishing, updated_at 2020_08_13;
)

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