ET WEB_CLIENT Google Chrome Credential Stealing via SCF file Reflected Request

Query · suricata

flow:to_server,established;
http.uri;
content:"shell"; nocase;
content:"IconFile"; nocase;
http.uri.raw;
content:"|5c 5c|";
pcre:"/Shell.*%0a\s*IconFile\s*=\s*\x5c\x5c/i";
Raw source ET WEB_CLIENT Google Chrome Credential Stealing via SCF file Reflected Request · 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 WEB_CLIENT Google Chrome Credential Stealing via SCF file Reflected Request";
    flow:to_server,established;
    http.uri;
    content:"shell"; nocase;
    content:"IconFile"; nocase;
    http.uri.raw;
    content:"|5c 5c|";
    pcre:"/Shell.*%0a\s*IconFile\s*=\s*\x5c\x5c/i";
    reference:url,defensecode.com/whitepapers/Stealing-Windows-Credentials-Using-Google-Chrome.pdf;
    classtype:attempted-recon;
    sid:2025060; rev:3;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Google_Chrome, attack_target Client_Endpoint, created_at 2017_11_27, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2020_08_18;
)

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