ET MALWARE DNS Reply Sinkhole - Microsoft - 131.253.18.11-12

Query · suricata

content:"|00 01 00 01|";
content:"|00 04 83 fd 12|"; distance:4; within:5;
byte_test:1,>,10,0,relative;
byte_test:1,<,13,0,relative;
threshold:type limit, count 1, seconds 120, track by_src;
Raw source ET MALWARE DNS Reply Sinkhole - Microsoft - 131.253.18.11-12 · 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 dns any any -> $HOME_NET any (
    msg:"ET MALWARE DNS Reply Sinkhole - Microsoft - 131.253.18.11-12";
    content:"|00 01 00 01|";
    content:"|00 04 83 fd 12|"; distance:4; within:5;
    byte_test:1,>,10,0,relative;
    byte_test:1,<,13,0,relative;
    threshold:type limit, count 1, seconds 120, track by_src;
    classtype:trojan-activity;
    sid:2016101; rev:7;
    metadata:created_at 2012_12_28, confidence High, signature_severity Major, updated_at 2022_07_13, reviewed_at 2024_03_25;
)

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