Question

I am using C#…

I need the ability to copy a set of files to about 500 unique computers. I have successfully been able to use the LogonUser() method to impersonate a domain account that has the required permissions to copy the files. The destination path for the files is something like:

\\RemoteComputer\C$\SomeFolder

My questions is…is there a way to do this without having to use an all-powerful domain account (these computers may not be joined to the domain in the future)? I have the local administrator accounts for every computer…is there a simple way to copy a file to a computer using it’s LOCAL administrator account rather than a domain account?

Answer 1

Correct me if I’m wrong, but you can use LogonUser to impersonate a local group also not only domain accounts.

From the net:

Imports System  Imports System.Runtime.InteropServices  Imports System.Security.Principal  Imports System.Security.Permissions  Public Class Form1      <DllImport('advapi32.DLL', SetLastError:=True)> _      Public Shared Function LogonUser(ByVal lpszUsername As String, ByVal lpszDomain As String, _          ByVal lpszPassword As String, ByVal dwLogonType As Integer, ByVal dwLogonProvider As Integer, _          ByRef phToken As IntPtr) As Integer      End Function      Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click          Dim admin_token As IntPtr          Dim wid_current As WindowsIdentity = WindowsIdentity.GetCurrent()          Dim wid_admin As WindowsIdentity = Nothing          Dim wic As WindowsImpersonationContext = Nothing          Try              MessageBox.Show('Copying file...')              If LogonUser('Local Admin name', 'Local computer name', 'pwd', 9, 0, admin_token) <> 0 Then                  wid_admin = New WindowsIdentity(admin_token)                  wic = wid_admin.Impersonate()                  System.IO.File.Copy('C:\right.bmp', '\\157.60.113.28\testnew\right.bmp', True)                  MessageBox.Show('Copy succeeded')              Else                  MessageBox.Show('Copy Failed')              End If          Catch se As System.Exception              Dim ret As Integer = Marshal.GetLastWin32Error()              MessageBox.Show(ret.ToString(), 'Error code: ' + ret.ToString())              MessageBox.Show(se.Message)          Finally              If wic IsNot Nothing Then                  wic.Undo()              End If          End Try      End Sub  End Class