Versions (3)
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Rev: 1 • Mar 17, 2023, 12:00 PMET MALWARE Fortigate THINCRUST Backdoor Activity M2
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;)
Mar 17, 2023, 12:00 PM
Mar 17, 2023, 12:00 PM
Mar 17, 2023, 9:00 PM
Aug 25, 2025, 9:35 PM
rules/emerging-malware.rules