ET MALWARE Win32/Small.NQT!tr CnC Activity

Query · suricata

flow:established,to_server;
content:"|49 4d 49 4e 20|"; startswith; fast_pattern;
content:"|40|"; distance:0;
content:"|0a|"; endswith;
Raw source ET MALWARE Win32/Small.NQT!tr CnC 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 tcp $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Win32/Small.NQT!tr CnC Activity";
    flow:established,to_server;
    content:"|49 4d 49 4e 20|"; startswith; fast_pattern;
    content:"|40|"; distance:0;
    content:"|0a|"; endswith;
    reference:md5,07d0d60fbcf30f7ab7861ad9981a2eed;
    classtype:command-and-control;
    sid:2034931; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_01_18, deployment Perimeter, malware_family Win32_Small_NQT_tr, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_01_18;
)

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