Technical Tip: Using FortiAnalyzer to detect DogWalk Microsoft Windows Support Diagnostic Tool (MSDT) Remote Code Execution Vulnerability | CVE-2022-34713

[ck_FTNT]

Description	This article describes how to use a custom event handler in FortiAnalyzer to raise alerts for incident response related to attacks that attempt to leverage the DogWalk remote code execution vulnerability. A report is also provided to gain historical visibility into the logs. Note that this article provides alpha files which are automatically generated. The article will be continually updated as more information becomes available.
Scope	This article contains the files necessary to load an event handler and report into the FortiAnalyzer for either a Fabric ADOM or a FortiGate ADOM. The Fabric report and event handler leverage logs from other Fortinet products that can be used to detect the attack in addition to FortiGate logs. For more information, please see the FortiGuard Outbreak Alert.
Solution	What is included in Fortinet_MSDT_DogWalk.zip? 1) MSDT_DogWalk_event-handler.json This event handler helps identify MSDT_DogWalk detected by FortiGates and other Fortinet products. 2) MSDT_DogWalk_report.dat This report displays the findings on MSDT_DogWalk attacks from FortiGates and other Fortinet products.  3) fgt_MSDT_DogWalk_event-handler.json The event handler for FortiGate ADOMs is configured for FortiGate logs only. 4) fgt_MSDT_DogWalk_report.dat The report for FortiGate ADOMs includes FortiGate charts only. Steps 1) Download the Fortinet_MSDT_DogWalk.zip file (contains 4 files). 2) Unzip Fortinet_MSDT_DogWalk.zip. 3) Import MSDT_DogWalk_event-handler.json or fgt_MSDT_DogWalk_event-handler.json event handler: - Choose an ADOM (if ADOMs are enabled). The ADOM may be of type Fabric or FortiGate. - Choose the FortiSOC module.  - Select Event Handler List. - Select the Import option under More. - Select the appropriate event handler depending on the ADOM type. Result:  The event handler is enabled and will be triggered if the appropriate logs are received following the import of the event handler.  Edit the event handler to customize the notification section. 4) Import MSDT_DogWalk_report.dat or fgt_MSDT_DogWalk_report.dat to Reports: - Choose an ADOM (if ADOMs are enabled). ADOM may be of type Fabric or FortiGate. - Choose the Report module. - Select the Import option under 'More'. - Select the appropriate file for the ADOM type to add the report to the ADOM. Result:  The MSDT_DogWalk_report can be run anytime as determined by an admin user.