ET MALWARE Tibs Trojan Downloader

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"?dn"; nocase;
content:"&flrdr="; fast_pattern; nocase;
content:"&nxte="; nocase;
http.header_names;
content:!"User-Agent|0d 0a|";
Raw source ET MALWARE Tibs Trojan Downloader · 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 Tibs Trojan Downloader";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"?dn"; nocase;
    content:"&flrdr="; fast_pattern; nocase;
    content:"&nxte="; nocase;
    http.header_names;
    content:!"User-Agent|0d 0a|";
    classtype:trojan-activity;
    sid:2008639; rev:8;
    metadata:affected_product Any, attack_target Client_Endpoint, created_at 2010_07_30, deployment Perimeter, signature_severity Major, tag Trojan_Downloader, updated_at 2020_09_13;
)

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