ET MALWARE NetWire Variant - Client Hello

Query · suricata

flow:established,to_server;
flowbits:set,ET.NetWire;
flowbits:noalert;
content:"|01 00 00 00 00|"; depth:5;
dsize:6;

Rule dependencies

Feeds into

Raw source ET MALWARE NetWire Variant - Client Hello · 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 NetWire Variant - Client Hello";
    flow:established,to_server;
    flowbits:set,ET.NetWire;
    flowbits:noalert;
    content:"|01 00 00 00 00|"; depth:5;
    dsize:6;
    reference:url,researchcenter.paloaltonetworks.com/2014/08/new-release-decrypting-netwire-c2-traffic;
    reference:url,www.circl.lu/pub/tr-23;
    classtype:trojan-activity;
    sid:2021976; rev:2;
    metadata:created_at 2015_10_20, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;
)

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