ET EXPLOIT_KIT Bingo EK Payload Download

Query · suricata

flow:established,to_server;
urilen:116;
http.uri;
content:"/?"; depth:2;
pcre:"/^\/\?[a-f0-9]{114}$/";
http.user_agent;
content:"WinHttp.WinHttpRequest.5"; fast_pattern;
http.header_names;
content:!"Referer|0d 0a|";
content:!"Cookie|0d 0a|";
Raw source ET EXPLOIT_KIT Bingo EK Payload Download · 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 -> $EXTERNAL_NET any (
    msg:"ET EXPLOIT_KIT Bingo EK Payload Download";
    flow:established,to_server;
    urilen:116;
    http.uri;
    content:"/?"; depth:2;
    pcre:"/^\/\?[a-f0-9]{114}$/";
    http.user_agent;
    content:"WinHttp.WinHttpRequest.5"; fast_pattern;
    http.header_names;
    content:!"Referer|0d 0a|";
    content:!"Cookie|0d 0a|";
    classtype:exploit-kit;
    sid:2024367; rev:4;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Web_Browser_Plugins, attack_target Client_Endpoint, created_at 2017_06_08, deployment Perimeter, malware_family Exploit_Kit, performance_impact Low, confidence High, signature_severity Major, tag Exploit_Kit_Bingo, updated_at 2020_11_05;
)

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