ET MALWARE Ttint XORed CnC Checkin

Query · suricata

flow:established,to_server;
urilen:1;
http.method;
content:"GET";
http.connection;
content:"Upgrade";
http.request_body;
content:"|a1 8a ee 02 e8 91 ff 04 be ac f7 09 b3 9c|"; offset:8; fast_pattern;
Raw source ET MALWARE Ttint XORed CnC Checkin · 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 Ttint XORed CnC Checkin";
    flow:established,to_server;
    urilen:1;
    http.method;
    content:"GET";
    http.connection;
    content:"Upgrade";
    http.request_body;
    content:"|a1 8a ee 02 e8 91 ff 04 be ac f7 09 b3 9c|"; offset:8; fast_pattern;
    reference:url,blog.netlab.360.com/ttint-an-iot-rat-uses-two-0-days-to-spread/;
    classtype:command-and-control;
    sid:2030924; rev:2;
    metadata:affected_product IoT, created_at 2020_09_30, deployment Perimeter, malware_family Ttint, performance_impact Low, confidence High, signature_severity Major, updated_at 2020_09_30;
)

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