ET RETIRED ZenRAT Status Response

Query · suricata

flow:established,to_client;
flowbits:isset,ET.ZenRATStatus;
content:"|00 0d 00 00 00 00 00 00 00|"; startswith;
pcre:"/^[\x00-\xff]\x00{3}$/R";
target:dest_ip;

Rule dependencies

⚠ Higher-order rule. It fires on other rules' alerts, not on raw events, so it cannot fire on its own. Deploy the rules it depends on too.

Depends on

Raw source ET RETIRED ZenRAT Status Response · Suricata
Esc
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 -> $HOME_NET any (
    msg:"ET RETIRED ZenRAT Status Response";
    flow:established,to_client;
    flowbits:isset,ET.ZenRATStatus;
    content:"|00 0d 00 00 00 00 00 00 00|"; startswith;
    pcre:"/^[\x00-\xff]\x00{3}$/R";
    reference:md5,6f809b1c82d9fb6cd277c6b645ecaf84;
    classtype:trojan-activity;
    sid:2047757; rev:2;
    metadata:attack_target Client_and_Server, created_at 2023_08_25, deployment Perimeter, former_category MALWARE, malware_family ZenRAT, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_11_24, reviewed_at 2023_08_25;
    target:dest_ip;
)

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