John said:
I would like to know if someone knows of a method to automate the renaming of
the local Administrator account with a randomly generated name. I know how to
create a random password with the following command:
net user Administrator /random
This will generate a random strong password for the local Administrator
account. Is there such a thing for the user account name? Is there third
party software available that will accomplish this task?
Hi
You can do this with a VBScript (a .vbs file).
The script below will generate a 15 characters long random user name
with characters from 4 different categories, and then rename the local
administrator account (it also will handle the cases where the old
name is not "Administrator").
'--------------------8<----------------------
'
' Description: Script that renames the builtin administrator
' account to a random generated name
'
' Author: Torgeir Bakken
' Date: 2004-10-28
'
' obtain current administrator name regardless of name
sOldUser = GetAdministratorName
' create new user name, 15 characters long
'It will contains characters from all of the following four categories:
'English upper case characters (A..Z)
'English lower case characters (a..z)
'Base 10 digits (0..9)
'Following non-alphanumeric characters: ()&$%#
sNewUser = GenRandomName(15)
Set oWshNet = CreateObject("WScript.Network")
' get computer name for local computer
sComputerName = oWshNet.ComputerName
' If you want to do it on a remote computer, disable the line
' above and enable the line below
'sComputerName = "SomeComputer"
Set oComputer = GetObject("WinNT://" & sComputerName)
' Turn off internal error handling
On Error Resume Next
' connect to user object
Set oUser = GetObject("WinNT://" & sComputerName & "/" & sOldUser & ",user")
' rename user
Set oNewUser = oComputer.MoveHere(oUser.ADsPath, sNewUser)
If Err.Number <> 0 Then
WScript.Echo "Failed to rename administrator user " & sOldUser
Else
WScript.Echo "Administrator user is renamed to " & sNewUser
End If
On Error Goto 0
Function GetAdministratorName
Dim sUserSID, oWshNetwork, oUserAccount
Set oWshNetwork = CreateObject("WScript.Network")
Set oUserAccounts = GetObject( _
"winmgmts://" & oWshNetwork.ComputerName & "/root/cimv2") _
.ExecQuery("Select Name, SID from Win32_UserAccount" _
& " WHERE Domain = '" & oWshNetwork.ComputerName & "'")
On Error Resume Next
For Each oUserAccount In oUserAccounts
If Left(oUserAccount.SID, 9) = "S-1-5-21-" And _
Right(oUserAccount.SID, 4) = "-500" Then
GetAdministratorName = oUserAccount.Name
Exit For
End if
Next
End Function
Function GenRandomName(iLen)
Randomize
Do
sRS = ""
For iPos = 1 To iLen
iChar = Int((69 * Rnd) + 1)
sRS = sRS & Mid("AEIOUBCDFGHJKLMNPQRSTVWXYZ" _
& "aeioubcdfghjklmnpqrstvwxyz0123456789()&!$#%", iChar, 1)
Next
Loop Until REtest("[A-Z]", sRS) And REtest("[a-z]", sRS) _
And REtest("\d", sRS) And REtest("[\(\)&\$%#]", sRS)
GenRandomName = sRS
End Function
Function REtest(patrn, strng)
Dim oRegEx, retVal ' Create variable.
Set oRegEx = New RegExp ' Create regular expression.
oRegEx.Pattern = patrn ' Set pattern.
oRegEx.IgnoreCase = False ' Set case sensitivity.
REtest = oRegEx.Test(strng) ' Execute the search test.
End Function
'--------------------8<----------------------
WSH 5.6 documentation (local help file) can be downloaded from here
if you haven't got it already:
http://msdn.microsoft.com/downloads/list/webdev.asp
--
torgeir, Microsoft MVP Scripting and WMI, Porsgrunn Norway
Administration scripting examples and an ONLINE version of
the 1328 page Scripting Guide:
http://www.microsoft.com/technet/scriptcenter/default.mspx
