ET MALWARE Linux/Torte Downloading Binary

Query · suricata

flow:established,to_server;
urilen:8;
http.uri;
content:"/crond"; fast_pattern;
pcre:"/^(?:32|64)$/R";
http.user_agent;
content:"Mozilla/5.0 (Windows NT 6.1|3b 20|WOW64|3b 20|rv|3a|18.0) Gecko/20100101 Firefox/18.0"; endswith; depth:72;
Raw source ET MALWARE Linux/Torte Downloading Binary · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE Linux/Torte Downloading Binary";
    flow:established,to_server;
    urilen:8;
    http.uri;
    content:"/crond"; fast_pattern;
    pcre:"/^(?:32|64)$/R";
    http.user_agent;
    content:"Mozilla/5.0 (Windows NT 6.1|3b 20|WOW64|3b 20|rv|3a|18.0) Gecko/20100101 Firefox/18.0"; endswith; depth:72;
    reference:url,blog.malwaremustdie.org/2016/01/mmd-0050-2016-incident-report-elf.html;
    classtype:trojan-activity;
    sid:2022357; rev:5;
    metadata:created_at 2016_01_13, confidence High, signature_severity Major, updated_at 2020_11_05;
)

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