I need a script to remove local admin users that get created when they set up their devices. I use the command net localgroup administrators AzureAD\NameOfUser /delete.
How can I have a wildcard in place of "NameOfUser"? There is only one user in that group that starts with AzureAD\ so a wild card for any amount of characters would work for me. I tried AzureAD\* that doesn't seem to be accepted.
As stated in comments you can probably use
(net localgroup administrators) -like 'AzureAD\*' | ForEach-Object { net localgroup administrators $_ /DELETE }
Essentially you are taking the response of net localgroup administrators, filtering for only lines that start with "AzureAD" using -like and then running net local group administrators <object_name> /DELETE for each matching object
Related
i'm trying to develop a script that remove a domain user from local administrators group (i can use computer management from ad but its a graphical interface i need to do it with commands) for now i'm using invoke command to remotely connect to machines and remove their users from local admins group .
im using this command : Invoke-Command -ComputerName $line2.split(";")[0] -ScriptBlock { net localgroup "administrators" $using:notadmin /DELETE } -Credential $Cred
the problem here if a the machine is not online i need to wait until it will be online , i'm searching how to remove users from local group (administrators for example ) through ad
is there a command to do that ?
I see two approaches:
If you would like to use Group Policy, you may check for: Restricted groups.
https://www.petri.com/manage-local-active-directory-groups-using-group-policy-restricted-groups
Another option would be to incoroporate Test-Connection in your script, validating if computer is online. If it is - execute the script, if it is not, store it in another list with offline machines.
Then later run the script against the offline machine list ... and so on until all the computers are being covered.
P.S. And yes, as suggested in the commments, consider using remove-localgroupmember, if your powershell version support it.
Again, depends of the case.
Hope it helps!
$RemoteComputer = "yourComputer"
$Computer = [ADSI]("WinNT://$RemoteComputer,computer")
$Group = $Computer.PSBase.Children.Find("Administrators")
ForEach ($User in (Get-Content
"c:\users\administrator.domain\desktop\localadmin.txt"))
{ $Group.Remove("WinNT://$User")
}
i tired this code and it really helped me thnx for help
I am setting up a bunch of computers, and for this i am using powershell.
To setup admin accounts, i have used the net command, but as I get some pc's with danish OS and some with english the commands differ slightly.
Danish version:
net localgroup Administratorer username /add
english version:
net localgroup Administrators username /add
This means i need two versions of the script. is it possible to take another aproach? perhaps using some ID to identify the admin group? like writing 3334 instead of administator
The builtin Administrators group may indeed have different names depending on the installation language, but the group's security identifier is always the same:
S-1-5-32-544
To find the local name, use WMI:
$AdminGroupName = (Get-WmiObject -Class Win32_Group -Filter 'LocalAccount = True AND SID = "S-1-5-32-544"').Name
Now you can do:
net localgroup $AdminGroupName username /add
One solution could be to leverage the .NET framework (via Powershell) to retrieve the localized name of the administrators group. I find it better than hardcoding the SID of the administrators group, even though it never changes.
$adminGroupSid = [System.Security.Principal.SecurityIdentifier]::new([System.Security.Principal.WellKnownSidType]::BuiltinAdministratorsSid,$null)
$adminGroupName = $adminGroupSid.Translate([System.Security.Principal.NTAccount]).ToString()
$adminsName = ($adminGroupName -split "\\")[1]
From then on, you can either use $adminsName when calling net localgroup
net localgroup $adminsname /add <user>
in case you want to run it as a package in SCCM without content folder
%windir%\Sysnative\windowsPowershell\V1.0\powershell -command "$an='AdminUser';$ap='password'; net user /add $an $ap; $agn = (gwmi -Class Win32_Group -Filter 'LocalAccount=True AND SID="""S-1-5-32-544"""').Name;net localgroup $agn $an /add"
I am trying to write a powershell script to add and remove members from a distribution list which is present in the active directory.I tried a command for adding members to the distribution list which is like:
ADD-DistributionGroupmember -identity "staff" -member "johnevans#contoso.com"
but when i try to execute this command i get an error saying that add-distributiongroupmember is an invalid command.
so,can anyone provide me a powershell script to add and remove members from the distribution list which is present in the active directory.
Add-DistributionGroupMember is an Exchange cmdlet, and requires the Exchange management snapin, or a remote Exchange management session.
You can accomplish the same thing using the ActiveDirectory module and Add-ADGroupMember, but you won't be able to use the user's email address as the member identity to add. Exchange will work with that as an identity reference, but the native AD cmdlets won't.
You need Exchange Powershell module: http://blogs.technet.com/b/heyscriptingguy/archive/2012/01/23/learn-how-to-use-powershell-to-run-exchange-server-commands-remotely.aspx
If you want to do it without the Exchange cmdlets, this works I tested it:
$groupIdentity = "My Group"
$userEmailAddress = "johnevans#contoso.com"
Add-ADGroupMember -Identity $groupIdentity -Member (Get-ADUser -Filter {mail -eq $userEmailAddress})
The user is a member of the AD security group "Domain\Sql Admins", and the security group "Domain\Sql Admins" is a member of the local Administrators group on a Windows Server.
I have tried the following PowerShell script:
$u = "Username"; net localgroup administrators | Where {$_ -match $u}
This script will only return the user if it is added directly to the admin group. Do I have to cycle through all of the groups in the admin group until I find my user? Or is there another way?
Check out this article, by Boe Prox on the Microsoft Hey Scripting Guy blog. He describes how to check if the user is a local administrator or not.
http://blogs.technet.com/b/heyscriptingguy/archive/2011/05/11/check-for-admin-credentials-in-a-powershell-script.aspx
This article points to a Test-IsAdmin function that was posted onto the TechNet Gallery.
http://gallery.technet.microsoft.com/scriptcenter/1b5df952-9e10-470f-ad7c-dc2bdc2ac946
The function contains the following code, which returns $true or $false.
([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator")
PowerShell 5.1 (Windows Server 2016) contains Get-LocalGroupMember cmdlet.
$user = "$env:COMPUTERNAME\$env:USERNAME"
$group = 'Administrators'
$isInGroup = (Get-LocalGroupMember $group).Name -contains $user
Using the SID:
([Security.Principal.WindowsIdentity]::GetCurrent().Groups | Select-String 'S-1-5-32-544')
Or using a "Well-known" security identifier name:
([Security.Principal.WindowsIdentity]::GetCurrent().Groups.IsWellKnown('BuiltinAdministratorsSid') -eq $true)
if you want to get all the SIDs and their names, please check this page: https://support.microsoft.com/en-us/help/243330/well-known-security-identifiers-in-windows-operating-systems
If you happen to be using the PowerShell Community Extension you can use the Test-UserGroupMembership command e.g.:
Test-UserGroupMembership Administrators
I was wondering how to best approach this. Basically I have a script that needs to check if USER1 is a member of local Administrators and if so, remove it. These groups are all local and the script will be run on the system I need to check (no remoting needed).
I was thinking something along the lines of capturing and evaluating the output from
net localgroup Administrators
test\user1
test\user2
However I am not sure how to capture the output for evaluation (pretty new to powershell). Has anyone done something like this? I really appreciate any help.
one way without module or snapin:
$group =[ADSI]"WinNT://./Administrators,group"
$members = #($group.psbase.Invoke("Members"))
($members | foreach {$_.GetType().InvokeMember("Name", 'GetProperty', $null, $_, $null)}) -contains "Administrator"
this return True or False belong the case
to remove user Administrator from Administrators group:
$group.remove("WinNT://Administrator")
$user = (net localgroup administrators | Select-String 'testuser1' -SimpleMatch).ToString()
net localgroup administrators "$user" /delete
You're not using objects and you don't have a lot of error checking, but this is a pretty simple way to get what you want.