ET MALWARE Fortigate THINCRUST Backdoor Activity M2

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/p/utils/fortigate_syslog_send"; fast_pattern;
http.cookie;
content:"DEVICEID";
content:"FGMGTOKEN";
Raw source ET MALWARE Fortigate THINCRUST Backdoor Activity M2 · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET MALWARE Fortigate THINCRUST Backdoor Activity M2";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/p/utils/fortigate_syslog_send"; fast_pattern;
    http.cookie;
    content:"DEVICEID";
    content:"FGMGTOKEN";
    reference:url,www.mandiant.com/resources/blog/fortinet-malware-ecosystem;
    classtype:trojan-activity;
    sid:2044679; rev:1;
    metadata:affected_product Fortigate, attack_target Networking_Equipment, created_at 2023_03_17, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_03_17;
)

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