ET INFO Lock Emoji In Title - Possible Social Engineering Attempt

Query · suricata

flow:from_server,established;
file_data;
content:"<title>"; nocase;
pcre:"/^(?:(?!<\/title).)*\x26\x23x1F512/Ri";
content:"|26 23|x1F512"; fast_pattern;
Raw source ET INFO Lock Emoji In Title - Possible Social Engineering Attempt · 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 INFO Lock Emoji In Title - Possible Social Engineering Attempt";
    flow:from_server,established;
    file_data;
    content:"<title>"; nocase;
    pcre:"/^(?:(?!<\/title).)*\x26\x23x1F512/Ri";
    content:"|26 23|x1F512"; fast_pattern;
    classtype:misc-activity;
    sid:2023749; rev:4;
    metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2017_01_19, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Informational, updated_at 2023_04_17;
)

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