This impersonation does not imply a vulnerability in Microsoft’s products or services.  Brute Ratel C4 ISO Samples:  1FC7B0E1054D54CE8F1DE0CC95976081C7A85C7926C03172A3DDAA672690042C  X64 Brute Ratel C4 Windows Kernel Module:  31ACF37D180AB9AFBCF6A4EC5D29C3E19C947641A2D9CE3CE56D71C1F576C069  APT29 ISO Samples:  F58AE9193802E9BAF17E6B59E3FDBE3E9319C5D27726D60802E3E82D30D14D46  