ET MALWARE MSIL/Diezen CnC Checkin M1

Query · suricata

flow:established,to_server;
dsize:<400;
content:"|40|"; startswith;
content:"|40|ID|3a 40|"; distance:0; fast_pattern;
content:"|40 20 2d 3e 20|"; distance:0;
Raw source ET MALWARE MSIL/Diezen CnC Checkin M1 · Suricata
Esc
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 any (
    msg:"ET MALWARE MSIL/Diezen CnC Checkin M1";
    flow:established,to_server;
    dsize:<400;
    content:"|40|"; startswith;
    content:"|40|ID|3a 40|"; distance:0; fast_pattern;
    content:"|40 20 2d 3e 20|"; distance:0;
    reference:url,threatrecon.nshc.net/2019/10/24/sectord01-when-anime-goes-cyber/;
    classtype:command-and-control;
    sid:2028908; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_10_25, deployment Perimeter, malware_family Sakabota, malware_family Diezen, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_10_25;
)

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