ET MALWARE Charming Kitten APT Related DNS Activity

Query · suricata

content:"|f1 00|"; offset:4; depth:2;
content:!"|00 00 00 00 00 00|"; distance:0; within:6;
content:"|51 00 00 02|"; distance:6; within:4;
threshold:type both,track by_src, count 10, seconds 30;
target:src_ip;
Raw source ET MALWARE Charming Kitten APT Related DNS Activity · 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 udp $HOME_NET any -> $EXTERNAL_NET 53 (
    msg:"ET MALWARE Charming Kitten APT Related DNS Activity";
    content:"|f1 00|"; offset:4; depth:2;
    content:!"|00 00 00 00 00 00|"; distance:0; within:6;
    content:"|51 00 00 02|"; distance:6; within:4;
    threshold:type both,track by_src, count 10, seconds 30;
    reference:md5,a3d5d54e2c0551e84a3727353bca7496;
    reference:md5,e66169d7f789b7d5c3696a3b291c41fb;
    reference:md5,50e3da586b1003415a841c946e21b246;
    reference:url,www.team-cymru.com/post/apt35-exploitation-activities-continue-as-of-november-2022;
    classtype:trojan-activity;
    sid:2042974; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_12_20, deployment Perimeter, malware_family TA453, malware_family CharmingKitten, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_12_20, reviewed_at 2024_05_07;
    target:src_ip;
)

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