ET MALWARE [ANY.RUN] Xeno-RAT TCP Check-In

Query · suricata

flow:established,to_client;
content:"|71 00 00 00 00|"; startswith; fast_pattern;
content:!"|00|"; within:1;
content:"|11 00 00 00|"; distance:112; within:5;
content:!"|00|"; distance:1; within:1;
threshold:type limit, track by_dst,seconds 30,count 1;
Raw source ET MALWARE [ANY.RUN] Xeno-RAT TCP Check-In · 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 $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET MALWARE [ANY.RUN] Xeno-RAT TCP Check-In";
    flow:established,to_client;
    content:"|71 00 00 00 00|"; startswith; fast_pattern;
    content:!"|00|"; within:1;
    content:"|11 00 00 00|"; distance:112; within:5;
    content:!"|00|"; distance:1; within:1;
    threshold:type limit, track by_dst,seconds 30,count 1;
    reference:md5,cb0a4f14d441666ccb5d0b2f170a2d78;
    reference:url,app.any.run/tasks/e6be415f-589d-4491-a1cd-abf070510d31;
    reference:url,github.com/moom825/xeno-rat;
    reference:url,community.emergingthreats.net/t/xeno-rat/1290;
    classtype:command-and-control;
    sid:2050110; rev:3;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2024_01_17, deployment Perimeter, malware_family XenoRat, confidence Medium, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_11;
)

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