ET MALWARE Spy/Infostealer.Win32.Embed.A Client Traffic

Query · suricata

flow:established,to_server;
http.uri;
content:"/search?hl=";
content:"q=";
content:"meta="; fast_pattern;
pcre:"/meta=(?:(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4}))?(?:&?id=[a-z]+)?$/";
http.host;
content:!"sogou.com";
http.user_agent;
content:"Windows NT 5.";
http.header_names;
content:!"Referer|0d 0a|";
content:!"Accept";
Raw source ET MALWARE Spy/Infostealer.Win32.Embed.A Client Traffic · Suricata
Esc
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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE Spy/Infostealer.Win32.Embed.A Client Traffic";
    flow:established,to_server;
    http.uri;
    content:"/search?hl=";
    content:"q=";
    content:"meta="; fast_pattern;
    pcre:"/meta=(?:(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4}))?(?:&?id=[a-z]+)?$/";
    http.host;
    content:!"sogou.com";
    http.user_agent;
    content:"Windows NT 5.";
    http.header_names;
    content:!"Referer|0d 0a|";
    content:!"Accept";
    reference:url,contagiodump.blogspot.no/2011/01/jan-6-cve-2010-3333-with-info-theft.html;
    classtype:trojan-activity;
    sid:2016932; rev:7;
    metadata:attack_target Client_Endpoint, created_at 2013_05_29, deployment Perimeter, malware_family HIMAN, performance_impact Moderate, signature_severity Major, updated_at 2020_10_08;
)

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