Take a full bare-metal backup or a virtual machine snapshot of your Windows Server 2019 instance.
This technique is also used offensively: "红队会修改 termsrv.dll 文件，关闭或绕过这个限制，从而允许多个用户同时登录 RDP。这对于红队保持对目标系统的访问非常有用". Therefore, any environment with a modified termsrv.dll may appear compromised to security scanners.
DISM /Online /Cleanup-Image /RestoreHealth
Look for Event IDs:
The file is a critical component of Microsoft Windows, specifically within the Remote Desktop Services (RDS) framework. In Windows Server 2019, this Dynamic Link Library (DLL) file manages Remote Desktop Protocol (RDP) connections, facilitating remote user interaction with the graphical user interface of the server.
Take a full bare-metal backup or a virtual machine snapshot of your Windows Server 2019 instance.
This technique is also used offensively: "红队会修改 termsrv.dll 文件，关闭或绕过这个限制，从而允许多个用户同时登录 RDP。这对于红队保持对目标系统的访问非常有用". Therefore, any environment with a modified termsrv.dll may appear compromised to security scanners. termsrvdll windows server 2019
DISM /Online /Cleanup-Image /RestoreHealth Take a full bare-metal backup or a virtual
Look for Event IDs:
The file is a critical component of Microsoft Windows, specifically within the Remote Desktop Services (RDS) framework. In Windows Server 2019, this Dynamic Link Library (DLL) file manages Remote Desktop Protocol (RDP) connections, facilitating remote user interaction with the graphical user interface of the server. termsrvdll windows server 2019