ET WEB_CLIENT Malicious iframe

Query · suricata

flow:established,from_server;
file_data;
content:"<iframe";
pcre:"/^((?!<\/iframe>).)*?[\r\n\s]+name[\r\n\s]*=[\r\n\s]*(?P<q>[\x22\x27])?(Twitter|Google\+)(?P=q)?[\r\n\s]+/R";
content:"scrolling=auto frameborder=no align=center height=2 width=2"; within:59; fast_pattern;
Raw source ET WEB_CLIENT Malicious iframe · 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 $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET WEB_CLIENT Malicious iframe";
    flow:established,from_server;
    file_data;
    content:"<iframe";
    pcre:"/^((?!<\/iframe>).)*?[\r\n\s]+name[\r\n\s]*=[\r\n\s]*(?P<q>[\x22\x27])?(Twitter|Google\+)(?P=q)?[\r\n\s]+/R";
    content:"scrolling=auto frameborder=no align=center height=2 width=2"; within:59; fast_pattern;
    classtype:trojan-activity;
    sid:2016297; rev:5;
    metadata:created_at 2013_01_29, signature_severity Major, updated_at 2022_03_17, reviewed_at 2024_01_25;
)

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