ET WEB_CLIENT Possible Internet Explorer VBscript failure to handle error case information disclosure obfuscated CVE-2014-6332

Query · suricata

flow:to_client,established;
file_data;
content:"vbscript"; nocase;
content:"Xor"; nocase;
pcre:"/^\W/R";
content:"Execute"; nocase;
content:"&chr"; nocase;
content:"UBound"; fast_pattern; nocase;
content:"Cint"; nocase;
pcre:"/^\W/R";
content:"Split"; nocase;
pcre:"/^\W/R";
content:"Mid";
pcre:"/^\W/R";
content:"Len";
pcre:"/^\W/R";
Raw source ET WEB_CLIENT Possible Internet Explorer VBscript failure to handle error case information disclosure obfuscated CVE-2014-6332 · 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 Internet Explorer VBscript failure to handle error case information disclosure obfuscated CVE-2014-6332";
    flow:to_client,established;
    file_data;
    content:"vbscript"; nocase;
    content:"Xor"; nocase;
    pcre:"/^\W/R";
    content:"Execute"; nocase;
    content:"&chr"; nocase;
    content:"UBound"; fast_pattern; nocase;
    content:"Cint"; nocase;
    pcre:"/^\W/R";
    content:"Split"; nocase;
    pcre:"/^\W/R";
    content:"Mid";
    pcre:"/^\W/R";
    content:"Len";
    pcre:"/^\W/R";
    reference:cve,2014-6332;
    classtype:attempted-user;
    sid:2019715; rev:3;
    metadata:affected_product Web_Browsers, affected_product Web_Browser_Plugins, attack_target Client_Endpoint, created_at 2014_11_15, cve CVE_2014_6332, deployment Perimeter, confidence Medium, signature_severity Major, tag Web_Client_Attacks, tag CISA_KEV, updated_at 2019_10_08, mitre_tactic_id TA0005, mitre_tactic_name Defense_Evasion, mitre_technique_id T1027, mitre_technique_name Obfuscated_Files_or_Information;
)

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