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This PowerShell tool allows easy and quick automation of local administrator rights on Windows boxes. You can specify a user & a server, a list of users & a list of servers, or a mixture of both.
Download the Local Administrator Tool v1.0 here!
Source Code
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################################################################################################# # # # Local Administrator Tool v1.0 # # # # Written by: Mike Oldfield # # Date: 25/05/2016 # # # # This PS1 helps speed up the process of adding accounts to local administrators group on # # remote machines. The script can apply permissions for individual users or a text file list # # of users. It can also apply these permissions on an individual server or a text file list # # of servers. Run the script without parameters to see usage information. # # # # Usage: See Help-File function, or run script with no parameters. # # # ################################################################################################# ############################# # # # PARAMETERS # # # ############################# # Set some avaialble paramters. This bit must come first. param ( [switch]$Add = $true, # -Add: Adds the specified user to the specified server's local administrator group [switch]$Remove = $false, # -Remove: Removes the specified user to the specified server's local administrator group [switch]$List = $false, # -List: Lists all current local administrators on requested server [string]$User = $null, # -User: Specifies a single user [string]$Users = $null, # -Users: Specifies a list of users. This should be a text file with one user per line [string]$Server = $null, # -Server: Specifies a server name [string]$Servers = $null, # -Servers: Specifies a list of servers. This should be a text file with one server per line [string]$Domain = "YourDomain" # -Domain: Specifies a domain name. If no name specified, YourDomain is assumed ) $scriptVer = "v1.0" # What version of the script is this? Used for header info ############################# # # # FUNCTIONS # # # ############################# # Help-File # This function displays help information for when the script is called incorrectly. function Help-File{ Write-Host "Available Parameters:`r`n" -ForegroundColor yellow Write-Host " -Add: Adds the specified user to the specified server's local administrator group" Write-Host " -Domain: Specifies a domain name. If no name specified, YourDomain is assumed" Write-Host " -List: Lists all current local administrators on requested server" Write-Host " -Remove: Removes the specified user to the specified server's local administrator group" Write-Host " -Server: Specifies a server name" Write-Host " -Servers: Specifies a list of servers. This should be a text file with one server per line" Write-Host " -User: Specifies a single user" Write-Host " -Users: Specifies a list of users. This should be a text file with one user per line`r`n" Write-Host "If -Remove is not specified, we assume -Add by default" Write-Host "`r`nExamples of correct usage:`r`n" -ForegroundColor yellow Write-Host ".\LocalAdminTool.ps1 -List -Server Y" Write-Host ".\LocalAdminTool.ps1 -List -Servers Y.txt" Write-Host ".\LocalAdminTool.ps1 -User X -Server Y" Write-Host ".\LocalAdminTool.ps1 -User X -Servers Y.txt" Write-Host ".\LocalAdminTool.ps1 -User X -Domain YourDomain -Server Y" Write-Host ".\LocalAdminTool.ps1 -User X -Domain YourDomain -Servers Y.txt" Write-Host ".\LocalAdminTool.ps1 -Users X.txt -Server Y" Write-Host ".\LocalAdminTool.ps1 -Users X.txt -Servers Y.txt" Write-Host ".\LocalAdminTool.ps1 -Users X.txt -Domain YourDomain -Server Y" Write-Host ".\LocalAdminTool.ps1 -Users X.txt -Domain YourDomain -Servers Y.txt" Write-Host ".\LocalAdminTool.ps1 -Remove -User X -Server Y`r`n" } ############################# # # # HEADER # # # ############################# # Write a pretty header Write-Host "`r`n##############################################`r`n" -ForegroundColor darkcyan -NoNewLine Write-Host "##### " -ForegroundColor darkgray -NoNewLine Write-Host "Local Administrator Tool $scriptVer " -ForegroundColor gray -NoNewLine Write-Host "#####`r`n##### " -ForegroundColor darkgray -NoNewLine Write-Host "Written by: Mike Oldfield" -ForegroundColor gray -NoNewLine Write-Host " #####`r`n##### " -ForegroundColor darkgray -NoNewLine Write-Host "Last Updated: 26/05/2016 " -ForegroundColor gray -NoNewLine Write-Host " #####`r`n" -ForegroundColor darkgray -NoNewLine Write-Host "##############################################`r`n" -ForegroundColor darkcyan ############################# # # # USAGE GUIDE # # # ############################# # Check if the minimum parameters have been declared. We didn't set these as mandatory as we could use -User instead of -Users for example. if ( (!($User) -or !($Server)) -and (!($User) -or !($Servers)) -and (!($Users) -or !($Server)) -and (!($Users) -or !($Servers) ) -and (!($list) -or !($Server)) -and (!($list) -or !($servers)) ) { # If the minimum parameters have not been set, educate the user on how the script works. Write-Host "Missing parameters! Please review details below and try again!`r`n" -ForegroundColor red Help-File Exit } ############################# # # # SCRIPTY BIT # # # ############################# # Check first if we asked to simply list the existing local admins if ($List -eq $true) { # As we've asked to just list, kill off any unnecessary parameters just in case $add = $false $remove = $false $user = $null $users = $null # Now check if we asked for just one server if ($server) { # Write some pretty header to tell us what we're doing. Write-Host "Local Administrators on $Server" -ForegroundColor cyan Write-Host "------------------------------------------" -ForegroundColor gray # Establish a connection to the remote server and find the "Administrators" group. This should result in, for example, WinNT://yourserver/Administrators,group $AdminGroup = [ADSI]"WinNT://$Server/Administrators,group" # Grab a list of members $Members = $AdminGroup.Invoke('Members') #Create an empty array for us to put our members into $MembersList = @() # Now, for each member listed in $Members, assign it a $Member foreach($Member in $Members) { # Find out the name of the member $MemberName = $Member.GetType().InvokeMember("Name", "GetProperty", $null, $Member, $null) # Add the $MemberName to the $MembersList array $MembersList += $MemberName } # Now, sort the $MemberList alphabetically, then for each item in the list... foreach($item in $MembersList | Sort-Object ) { # Tell us who it is Write-Host $item } # Write a blank line to clean up the end of the script Write-Host "" # But if we didn't ask for one server, check that we asked for a list of servers... } elseif ($servers) { # If we did, read the list of servers and put it into $Nodes $Nodes = Get-Content $servers # For each server in the list... foreach($node in $nodes) { # Write some pretty header to tell us what we're doing. Write-Host "Local Administrators on $node" -ForegroundColor cyan Write-Host "------------------------------------------" -ForegroundColor gray # Establish a connection to the remote server and find the "Administrators" group. This should result in, for example, WinNT://yourserver/Administrators,group $AdminGroup = [ADSI]"WinNT://$node/Administrators,group" # Grab a list of members $Members = $AdminGroup.Invoke('Members') #Create an empty array for us to put our members into $MembersList = @() # Now, for each member listed in $Members, assign it a $Member foreach($Member in $Members) { # Find out the name of the member $MemberName = $Member.GetType().InvokeMember("Name", "GetProperty", $null, $Member, $null) # Add the $MemberName to the $MembersList array $MembersList += $MemberName } # Now, sort the $MemberList alphabetically, then for each item in the list... foreach($item in $MembersList | Sort-Object ) { # Tell us who it is Write-Host $item } # Write a blank line to clean up the end of the script Write-Host "" } # But if we didn't ask for a server or list of servers, then we don't know what! } else { # Tell the user we don't know what they've done and give them some help Write-Host "I have no idea what you've just asked me to do!" -ForegroundColor red Help-File } # Kill the script without doing anything further Exit } # Check if we asked to -Remove the user if ($remove -eq $true) { # If we did, then quickly set the $add value to false to ensure it doesn't add anything $add = $false } # Check if we asked for just one server if ($server) { # Check if we asked for just one user if ($user) { # Establish a connection to the remote server and find the "Administrators" group. This should result in, for example, WinNT://yourservername/Administrators,group $AdminGroup = [ADSI]"WinNT://$Server/Administrators,group" # Setup the path to where the user object is. This should result in, for example, WinNT://yourdomain/moldfield,user $Usr = "WinNT://$Domain/$User,user" # Check if we asked to remove the user, and if we did... if ($remove -eq $true) { # Tell us what we're trying to do... Write-Host "Removing $User from local administrators group on $server ... " -NoNewLine # Let's try to remove the user to the Administrators group try { # Try to open up the Administrators group and add the user $AdminGroup.Invoke('Remove', $Usr) # If it went well, tell us it was OK! Make it a pretty green Write-Host "OK!" -ForegroundColor green # But in case it didn't go OK, capture the error... } catch [System.Exception] { # Check if the error was simply that the user is already a local administrator on that server. if ($_ -match "The specified account name is not a member of the group") { # If that was the case, then give us a nice yellow message telling us so. This shortens the message to prevent it spilling onto a new line. Write-Host "This user was not a local administrator!" -ForegroundColor yellow # But if the error was something else... } else { # Tell us what the error was in a nasty red Write-Host "ERROR! $_" -ForegroundColor red } } # If we didn't ask for $remove, then check we asked to $add instead. We should have by default. } elseif ($add -eq $true) { # Tell us what we're trying to do... Write-Host "Adding $User to local administrators group on $server ... " -NoNewLine # Let's try to add the user to the Administrators group try { # Try to open up the Administrators group and add the user $AdminGroup.Invoke('Add', $Usr) # If it went well, tell us it was OK! Make it a pretty green Write-Host "OK!" -ForegroundColor green # But in case it didn't go OK, capture the error... } catch [System.Exception] { # Check if the error was simply that the user is already a local administrator on that server. if ($_ -match "The specified account name is already a member of the group") { # If that was the case, then give us a nice yellow message telling us so. This shortens the message to prevent it spilling onto a new line. Write-Host "This user is already a local administrator!" -ForegroundColor yellow # But if the error was something else... } else { # Tell us what the error was in a nasty red Write-Host "ERROR! $_" -ForegroundColor red } } } # But if we didn't ask for just one user, double check that we actually asked for a list of users. If we did... } elseif ($users) { try { # Grab the content of the text file $Usrs = Get-Content $Users -ErrorAction Stop foreach ($Usr in $Usrs) { # Establish a connection to the remote server and find the "Administrators" group. This should result in, for example, WinNT://yourservername/Administrators,group $AdminGroup = [ADSI]"WinNT://$Server/Administrators,group" # Setup the path to where the user object is. This should result in, for example, WinNT://yourdomain/moldfield,user $Usrp = "WinNT://$Domain/$Usr,user" # Check if we asked to remove the user, and if we did... if ($remove -eq $true) { # Tell us what we're trying to do... Write-Host "Removing $Usr from local administrators group on $server ... " -NoNewLine # Let's try to remove the user to the Administrators group try { # Try to open up the Administrators group and add the user $AdminGroup.Invoke('Remove', $Usrp) # If it went well, tell us it was OK! Make it a pretty green Write-Host "OK!" -ForegroundColor green # But in case it didn't go OK, capture the error... } catch [System.Exception] { # Check if the error was simply that the user is already a local administrator on that server. if ($_ -match "The specified account name is not a member of the group") { # If that was the case, then give us a nice yellow message telling us so. This shortens the message to prevent it spilling onto a new line. Write-Host "This user was not a local administrator!" -ForegroundColor yellow # But if the error was something else... } else { # Tell us what the error was in a nasty red Write-Host "ERROR! $_" -ForegroundColor red } } # If we didn't ask for $remove, then check we asked to $add instead. We should have by default. } elseif ($add -eq $true) { # Tell us what we're trying to do... Write-Host "Adding $Usr to local administrators group on $server ... " -NoNewLine # Let's try to add the user to the Administrators group try { # Try to open up the Administrators group and add the user $AdminGroup.Invoke('Add', $Usrp) # If it went well, tell us it was OK! Make it a pretty green Write-Host "OK!" -ForegroundColor green # But in case it didn't go OK, capture the error... } catch [System.Exception] { # Check if the error was simply that the user is already a local administrator on that server. if ($_ -match "The specified account name is already a member of the group") { # If that was the case, then give us a nice yellow message telling us so. This shortens the message to prevent it spilling onto a new line. Write-Host "This user is already a local administrator!" -ForegroundColor yellow # But if the error was something else... } else { # Tell us what the error was in a nasty red Write-Host "ERROR! $_" -ForegroundColor red } } } } # Catch any errors that might occur } catch [System.Exception] { # Tell us what went wrong and give some help. # This is likely that the user didn't specify a file that existed. Write-Host "ERROR! $_`r`n" -ForegroundColor red Help-File Exit } } # If we didn't ask for just one server, check if we asked for a list of servers... } elseif ($servers) { # If we did, read the list of servers and put it into $Nodes $Nodes = Get-Content $servers # For each server in the list... foreach($node in $nodes) { # Check if we asked for just one user if ($user) { # Establish a connection to the remote server and find the "Administrators" group. This should result in, for example, WinNT://yourservername/Administrators,group $AdminGroup = [ADSI]"WinNT://$node/Administrators,group" # Setup the path to where the user object is. This should result in, for example, WinNT://yourdomain/moldfield,user $Usr = "WinNT://$Domain/$User,user" # Check if we asked to remove the user, and if we did... if ($remove -eq $true) { # Tell us what we're trying to do... Write-Host "Removing $User from local administrators group on $node ... " -NoNewLine # Let's try to remove the user to the Administrators group try { # Try to open up the Administrators group and add the user $AdminGroup.Invoke('Remove', $Usr) # If it went well, tell us it was OK! Make it a pretty green Write-Host "OK!" -ForegroundColor green # But in case it didn't go OK, capture the error... } catch [System.Exception] { # Check if the error was simply that the user is already a local administrator on that server. if ($_ -match "The specified account name is not a member of the group") { # If that was the case, then give us a nice yellow message telling us so. This shortens the message to prevent it spilling onto a new line. Write-Host "This user was not a local administrator!" -ForegroundColor yellow # But if the error was something else... } else { # Tell us what the error was in a nasty red Write-Host "ERROR! $_" -ForegroundColor red } } # If we didn't ask for $remove, then check we asked to $add instead. We should have by default. } elseif ($add -eq $true) { # Tell us what we're trying to do... Write-Host "Adding $User to local administrators group on $node ... " -NoNewLine # Let's try to add the user to the Administrators group try { # Try to open up the Administrators group and add the user $AdminGroup.Invoke('Add', $Usr) # If it went well, tell us it was OK! Make it a pretty green Write-Host "OK!" -ForegroundColor green # But in case it didn't go OK, capture the error... } catch [System.Exception] { # Check if the error was simply that the user is already a local administrator on that server. if ($_ -match "The specified account name is already a member of the group") { # If that was the case, then give us a nice yellow message telling us so. This shortens the message to prevent it spilling onto a new line. Write-Host "This user is already a local administrator!" -ForegroundColor yellow # But if the error was something else... } else { # Tell us what the error was in a nasty red Write-Host "ERROR! $_" -ForegroundColor red } } } # But if we didn't ask for just one user, double check that we actually asked for a list of users. If we did... } elseif ($users) { try { # Grab the content of the text file $Usrs = Get-Content $Users -ErrorAction Stop foreach ($Usr in $Usrs) { # Establish a connection to the remote server and find the "Administrators" group. This should result in, for example, WinNT://yourservername/Administrators,group $AdminGroup = [ADSI]"WinNT://$node/Administrators,group" # Setup the path to where the user object is. This should result in, for example, WinNT://yourdomain/moldfield,user $Usrp = "WinNT://$Domain/$Usr,user" # Check if we asked to remove the user, and if we did... if ($remove -eq $true) { # Tell us what we're trying to do... Write-Host "Removing $Usr from local administrators group on $node ... " -NoNewLine # Let's try to remove the user to the Administrators group try { # Try to open up the Administrators group and add the user $AdminGroup.Invoke('Remove', $Usrp) # If it went well, tell us it was OK! Make it a pretty green Write-Host "OK!" -ForegroundColor green # But in case it didn't go OK, capture the error... } catch [System.Exception] { # Check if the error was simply that the user is already a local administrator on that server. if ($_ -match "The specified account name is not a member of the group") { # If that was the case, then give us a nice yellow message telling us so. This shortens the message to prevent it spilling onto a new line. Write-Host "This user was not a local administrator!" -ForegroundColor yellow # But if the error was something else... } else { # Tell us what the error was in a nasty red Write-Host "ERROR! $_" -ForegroundColor red } } # If we didn't ask for $remove, then check we asked to $add instead. We should have by default. } elseif ($add -eq $true) { # Tell us what we're trying to do... Write-Host "Adding $Usr to local administrators group on $node ... " -NoNewLine # Let's try to add the user to the Administrators group try { # Try to open up the Administrators group and add the user $AdminGroup.Invoke('Add', $Usrp) # If it went well, tell us it was OK! Make it a pretty green Write-Host "OK!" -ForegroundColor green # But in case it didn't go OK, capture the error... } catch [System.Exception] { # Check if the error was simply that the user is already a local administrator on that server. if ($_ -match "The specified account name is already a member of the group") { # If that was the case, then give us a nice yellow message telling us so. This shortens the message to prevent it spilling onto a new line. Write-Host "This user is already a local administrator!" -ForegroundColor yellow # But if the error was something else... } else { # Tell us what the error was in a nasty red Write-Host "ERROR! $_" -ForegroundColor red } } } } # Catch and errors that might occur } catch [System.Exception] { # Tell us what went wrong and give some help. # This is likely that the user didn't specify a file that existed. Write-Host "ERROR! $_`r`n" -ForegroundColor red Help-File Exit } } } # If, however, we didn't ask for any servers, then we don't know what you've asked for! # This should, in theory, never get triggered, but just incase! } else { # Tell us in a nasty red that we have no idea what you've just asked for and give the user some help Write-Host "I have no idea what you've just asked me to do!" -ForegroundColor red Help-File } # Write a blank line at the end just to make things pretty Write-Host "" |
