ET MALWARE ValleyRAT CnC Checkin Server Response

Query · suricata

flow:established,to_client;
dsize:19;
content:"|13 00 00 00 31 00 32 00 33 00 34 00 35 00 36 00 00 00 00|"; fast_pattern;
Raw source ET MALWARE ValleyRAT CnC Checkin Server Response · 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-pkt $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET MALWARE ValleyRAT CnC Checkin Server Response";
    flow:established,to_client;
    dsize:19;
    content:"|13 00 00 00 31 00 32 00 33 00 34 00 35 00 36 00 00 00 00|"; fast_pattern;
    reference:md5,f4d9b144234ff75d669b1265f708ec55;
    classtype:trojan-activity;
    sid:2038859; rev:1;
    metadata:attack_target Client_and_Server, created_at 2022_09_15, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_09_15;
)

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