ET MALWARE Netwire RAT Check-in

Query · suricata

flow:established,to_client;
stream_size:server,<,72;
dsize:69;
content:"|41 00 00 00 05|"; depth:5;
flowbits:isset,ET.NetwireRAT.Client;

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 MALWARE Netwire RAT Check-in · 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 ![22,23,25,80,139,443,445] -> $HOME_NET any (
    msg:"ET MALWARE Netwire RAT Check-in";
    flow:established,to_client;
    stream_size:server,<,72;
    dsize:69;
    content:"|41 00 00 00 05|"; depth:5;
    flowbits:isset,ET.NetwireRAT.Client;
    reference:url,www.circl.lu/pub/tr-23/;
    reference:url,unit42.paloaltonetworks.com/new-release-decrypting-netwire-c2-traffic/;
    classtype:trojan-activity;
    sid:2018427; rev:6;
    metadata:attack_target Client_Endpoint, created_at 2014_04_28, deployment Perimeter, malware_family Netwire_RAT, signature_severity Major, updated_at 2022_08_09, reviewed_at 2024_03_06;
)

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