ET WEB_CLIENT Possible JS Credit Card Stealer Inbound

Query · suricata

flow:established,from_server;
http.stat_code;
content:"200";
file.data;
content:"Month|3a 20|";
content:"Year|3a 20|";
content:"CVV|3a 20|";
content:"Holder|27 5d 20|===|20|undefined|20 7c 7c 20 24|"; fast_pattern;
content:"CVV|20|!==|20|null|20|&&"; distance:0;
content:".SendData|28 29|";
Raw source ET WEB_CLIENT Possible JS Credit Card Stealer Inbound · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET WEB_CLIENT Possible JS Credit Card Stealer Inbound";
    flow:established,from_server;
    http.stat_code;
    content:"200";
    file.data;
    content:"Month|3a 20|";
    content:"Year|3a 20|";
    content:"CVV|3a 20|";
    content:"Holder|27 5d 20|===|20|undefined|20 7c 7c 20 24|"; fast_pattern;
    content:"CVV|20|!==|20|null|20|&&"; distance:0;
    content:".SendData|28 29|";
    classtype:trojan-activity;
    sid:2027344; rev:2;
    metadata:attack_target Client_Endpoint, created_at 2019_05_09, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, updated_at 2020_08_28;
)

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