ET MALWARE TA416 Related PUBLOAD Variant Checkin Activity M2

Query · suricata

flow:established,to_server;
dsize:12;
content:"|17 03 03 00 07 21|"; startswith; fast_pattern;
threshold:type limit, track by_src, seconds 120, count 1;
target:src_ip;
Raw source ET MALWARE TA416 Related PUBLOAD Variant Checkin Activity M2 · 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 tcp $HOME_NET any -> $EXTERNAL_NET 443 (
    msg:"ET MALWARE TA416 Related PUBLOAD Variant Checkin Activity M2";
    flow:established,to_server;
    dsize:12;
    content:"|17 03 03 00 07 21|"; startswith; fast_pattern;
    threshold:type limit, track by_src, seconds 120, count 1;
    reference:md5,264152e46df9c02652e12d68d915485d;
    reference:url,csirt-cti.net/2024/02/01/stately-taurus-continued-new-information-on-cyberespionage-attacks-against-myanmar-military-junta/;
    classtype:trojan-activity;
    sid:2051638; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_Endpoint, tls_state TLSEncrypt, created_at 2024_03_13, deployment Perimeter, confidence Medium, signature_severity Major, tag TA416, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_13;
    target:src_ip;
)

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