ET MALWARE ELF/Muhstik Scanner Module Activity

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"index.php?lang=en-utf-8&"; fast_pattern;
http.header;
content:"Keep-Alive|3a 20|300|0d 0a|";
http.user_agent;
content:"Windows NT 10.0|3b 20|Win64|3b 20|x64";
http.connection;
content:"Keep-Alive";
http.header_names;
content:!"Referer";
Raw source ET MALWARE ELF/Muhstik Scanner Module Activity · 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 ELF/Muhstik Scanner Module Activity";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"index.php?lang=en-utf-8&"; fast_pattern;
    http.header;
    content:"Keep-Alive|3a 20|300|0d 0a|";
    http.user_agent;
    content:"Windows NT 10.0|3b 20|Win64|3b 20|x64";
    http.connection;
    content:"Keep-Alive";
    http.header_names;
    content:!"Referer";
    reference:url,www.intezer.com/muhstik-botnet-reloaded-new-variants-targeting-phpmyadmin-servers/;
    classtype:trojan-activity;
    sid:2026610; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Linux, attack_target Server, created_at 2018_11_15, deployment Perimeter, malware_family Muhstik, performance_impact Low, confidence High, signature_severity Major, updated_at 2020_08_27;
)

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