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MediumSigmaHQ Marco Pedrinazzi (@pedrinazziM) (InTheCyber)

FortiGate - New VPN SSL Web Portal Added

Detects the addition of a VPN SSL Web Portal on a Fortinet FortiGate Firewall. This behavior was observed in pair with modification of VPN SSL settings.

Detection logic

Detection requirements

Platform: Containers Linux macOS Windows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
Log source product: fortigate
Log source service: event

Known benign triggers

A VPN SSL Web Portal can be added for legitimate purposes.

References

Links the source published beside this detection. Reference is the link the source wrote, unmodified. Class is decided by this catalogue from the host and path, not stated by the source. Cited by counts published detections citing the same resource, including this one, and the sources beneath it count the repositories this catalogue ingests, which is not the same as independent research.
Reference	Class	Cited by
docs.fortinet.com/document/fortigate/7.6.4/cli-reference/113121765/config-vpn-ssl-web-portal	Unclassified	Only this detection cites it
docs.fortinet.com/document/fortigate/7.6.4/fortios-log-message-reference/398/event	Unclassified	7
docs.fortinet.com/document/fortigate/7.6.4/fortios-log-message-reference/44547/44547-logid-event-config-objattr	Unclassified	6
www.fortiguard.com/psirt/FG-IR-24-535	Unclassified	7

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