ET WEB_CLIENT Malicious SCF File Inbound

Query · suricata

flow:to_client,established;
file_data;
content:"[shell]"; nocase;
content:"iconfile"; nocase; distance:0;
pcre:"/^\s*=\s*\x5c\x5c/Rs";
Raw source ET WEB_CLIENT Malicious SCF File 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 Malicious SCF File Inbound";
    flow:to_client,established;
    file_data;
    content:"[shell]"; nocase;
    content:"iconfile"; nocase; distance:0;
    pcre:"/^\s*=\s*\x5c\x5c/Rs";
    reference:url,defensecode.com/news_article.php?id=21;
    classtype:attempted-user;
    sid:2024303; rev:3;
    metadata:affected_product Windows_Client_Apps, attack_target Client_Endpoint, created_at 2017_05_16, deployment Perimeter, performance_impact Moderate, signature_severity Minor, updated_at 2020_08_19;
)

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