ET MALWARE Fortigate TABLEFLIP Backdoor Trigger - Magic Number Sequence

Query · suricata

flow:established,to_server;
dsize:20;
content:"|17 03 01 01 d8 54 2f 31|"; startswith; fast_pattern;
Raw source ET MALWARE Fortigate TABLEFLIP Backdoor Trigger - Magic Number Sequence · 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-pkt $EXTERNAL_NET any -> $HOME_NET 541 (
    msg:"ET MALWARE Fortigate TABLEFLIP Backdoor Trigger - Magic Number Sequence";
    flow:established,to_server;
    dsize:20;
    content:"|17 03 01 01 d8 54 2f 31|"; startswith; fast_pattern;
    reference:url,www.mandiant.com/resources/blog/fortinet-malware-ecosystem;
    classtype:trojan-activity;
    sid:2044677; rev:1;
    metadata:affected_product Fortigate, attack_target Networking_Equipment, created_at 2023_03_17, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_03_17;
)

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