Rule History

SID: 2044677 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 1 • Mar 17, 2023, 12:00 PM

Message:

ET MALWARE Fortigate TABLEFLIP Backdoor Trigger - Magic Number Sequence

Rule:

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;)

Created:

Mar 17, 2023, 12:00 PM

Updated:

Mar 17, 2023, 12:00 PM

DB Created:

Mar 17, 2023, 9:00 PM

DB Updated:

Aug 25, 2025, 9:35 PM

Filename:

rules/emerging-malware.rules