ET MALWARE RCtrl Backdoor CnC Checkin M1

Query · suricata

flow:established,to_client;
content:"Jo*Po*Hello"; offset:4; depth:11; fast_pattern;
Raw source ET MALWARE RCtrl Backdoor CnC Checkin M1 · 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 RCtrl Backdoor CnC Checkin M1";
    flow:established,to_client;
    content:"Jo*Po*Hello"; offset:4; depth:11; fast_pattern;
    reference:md5,373224fd766cb9b85e3d42d56d1702f3;
    reference:url,www.ptsecurity.com/ww-en/analytics/pt-esc-threat-intelligence/eagle-eye-is-back-apt30/;
    classtype:command-and-control;
    sid:2030401; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2020_06_26, deployment Perimeter, performance_impact Low, confidence High, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_06_26;
)

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