Hi. I recently noticed that running the regsvr32.exe C:Windowssystem32SecurityHealthProxyStub.dll causes the Windows security app to stop functionning and show only a blank screen. I think this is a severe issue, because it allows attackers to easily disable the system protection for Microsoft Defender users. I also could not find any easy way to revert the issue, only an in-place Windows reinstall or System restore can fix it.

​Hi. I recently noticed that running the regsvr32.exe C:Windowssystem32SecurityHealthProxyStub.dll causes the Windows security app to stop functionning and show only a blank screen. I think this is a severe issue, because it allows attackers to easily disable the system protection for Microsoft Defender users. I also could not find any easy way to revert the issue, only an in-place Windows reinstall or System restore can fix it.  Read More

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