ET MALWARE Backdoor.Win32/Etumbot.B Requesting RC4 Key

Query · suricata

flow:to_server,established;
http.uri;
content:"/home/index.asp?typeid="; nocase; fast_pattern;
pcre:"/^\/home\/index\.asp\?typeid=(?:1[13]?|[3579])$/i";
http.referer;
content:"http|3a|//www.google.com/"; bsize:22;
Raw source ET MALWARE Backdoor.Win32/Etumbot.B Requesting RC4 Key · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE Backdoor.Win32/Etumbot.B Requesting RC4 Key";
    flow:to_server,established;
    http.uri;
    content:"/home/index.asp?typeid="; nocase; fast_pattern;
    pcre:"/^\/home\/index\.asp\?typeid=(?:1[13]?|[3579])$/i";
    http.referer;
    content:"http|3a|//www.google.com/"; bsize:22;
    reference:md5,82d4850a02375a7447d2d0381b642a72;
    reference:md5,ff5a7a610746ab5492cc6ab284138852;
    reference:url,arbornetworks.com/asert/wp-content/uploads/2014/06/ASERT-Threat-Intelligence-Brief-2014-07-Illuminating-Etumbot-APT.pdf;
    classtype:trojan-activity;
    sid:2018552; rev:5;
    metadata:created_at 2014_06_09, signature_severity Major, updated_at 2020_09_24;
)

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