ET MALWARE Red Leaves magic packet response detected (APT10 implant)

Query · suricata

flowbits:isset,ncc.apt10.beacon_send;
flow:established,to_client;
dsize:12;
content:"|7a 8d 9b dc|"; offset:4; depth:4;
threshold:type limit, track by_dst, count 1, seconds 600;

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 Red Leaves magic packet response detected (APT10 implant) · 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 Red Leaves magic packet response detected (APT10 implant)";
    flowbits:isset,ncc.apt10.beacon_send;
    flow:established,to_client;
    dsize:12;
    content:"|7a 8d 9b dc|"; offset:4; depth:4;
    threshold:type limit, track by_dst, count 1, seconds 600;
    reference:url,github.com/nccgroup/Cyber-Defence/blob/master/Technical%20Notes/Red%20Leaves/Red%20Leaves%20technical%20note%20v1.0.pdf;
    reference:url,blog.jpcert.or.jp/2017/04/redleaves---malware-based-on-open-source-rat.html;
    classtype:targeted-activity;
    sid:2024174; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_04_04, deployment Perimeter, malware_family RedLeaves, malware_family Red_Leaves, performance_impact Low, confidence High, signature_severity Major, tag APT, tag APT10, tag RedLeaves, updated_at 2019_07_26;
)

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