WNDF-AV-000035 - Microsoft Defender AV must be configured to block Office applications from injecting into other processes.
Office apps, such as Word, Excel, or PowerPoint, will not be able to inject code into other processes. This is typically used by malware to run malicious code in an attempt to hide the activity from antivirus scanning engines.
Set the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Microsoft Defender Antivirus >> Windows Defender Exploit Guard >> Attack Surface Reduction >> 'Configure Attack Surface Reduction rules' to 'Enabled'. Click 'Show...'. Set the Value name to '75668C1F-73B5-4CF0-BB93-3ECF5CB7CC84' and the Value to '1'.