ET MALWARE Possible Backdoor.Linux.Tsunami Outbound HTTP request

Query · suricata

flow:established,to_server;
http.header;
content:"|3a|80|0d 0a|";
http.user_agent;
content:"Mozilla/4.75 [en] (X11|3b| U|3b| Linux 2.2.16-3 i686)";
Raw source ET MALWARE Possible Backdoor.Linux.Tsunami Outbound HTTP request · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $HTTP_SERVERS any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Possible Backdoor.Linux.Tsunami Outbound HTTP request";
    flow:established,to_server;
    http.header;
    content:"|3a|80|0d 0a|";
    http.user_agent;
    content:"Mozilla/4.75 [en] (X11|3b| U|3b| Linux 2.2.16-3 i686)";
    reference:url,malwaremustdie.blogspot.jp/2013/05/story-of-unix-trojan-tsunami-ircbot-w.html;
    classtype:trojan-activity;
    sid:2016949; rev:4;
    metadata:created_at 2013_05_31, confidence Medium, signature_severity Major, updated_at 2020_04_24;
)

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