ET MALWARE Bladabindi/njrat CnC Checkin

Query · suricata

flow:established,to_server;
content:"|20 5b 20|";
content:"|20 5b 20|"; distance:0;
content:"[endof]"; endswith;
Raw source ET MALWARE Bladabindi/njrat CnC Checkin · 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 Bladabindi/njrat CnC Checkin";
    flow:established,to_server;
    content:"|20 5b 20|";
    content:"|20 5b 20|"; distance:0;
    content:"[endof]"; endswith;
    reference:md5,8db6655c0a5cb219c3bbc4bb5fc92e1a;
    classtype:command-and-control;
    sid:2033938; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2021_09_13, deployment Perimeter, malware_family njrat, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_09_13;
)

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