open a desired tool as another user, such as a domain admin

open_tools_as_domain_admin.ps1

param (
    $domain = $env:USERDOMAIN
)

$ErrorActionPreference = "Stop"

function Get-AdminUsername {
    # Admin username determinationator
    $user = $env:USERNAME

    # create admin_username string based on first char of first name, and first 5 chars of last name
    $admin_username = (($env:USERNAME).Substring(0,1) + (($env:USERNAME).Split('.')[1].Substring(0,5)) + "adm" )

    return $admin_username # ex: a.superman -> asuper
}

Write-Host -ForegroundColor DarkGreen @"

===== Examples =====

CERTMGR.MSC Certificates snap-in
CERTSRV.MSC - Certification Services
CMD.EXE - Command Prompt
COMPMGMT.MSC - Computer Management
DCPOL.MSC - Domain Controller Security Policy
DFSGUI.MSC - Distributed File System
DHCPMGMT.MSC - DHCP Manager
DISKMGMT.MSC - Disk Management
DNSMGMT.MSC - DNS Manager
DOMAIN.MSC - Active Directory Domains & Trust
DOMPOL.MSC - Domain Security Policy
DSA.MSC - Active Directory Users & Computers
  DSA.MSC /DOMAIN=domainname
  DSA.MSC /SERVER=servername
DSSITE.MSC - Active Directory Sites & Services
EVENTVWR.MSC - Event Viewer
FSMGMT.MSC - Shared Folders
GPEDIT.MSC - Local Group Policy Editor
IAS.MSC - Internet Authentication Service
INETMGR - Internet Information Service (\Windows\system32\inetsrv)
LUSRMGR.MSC - Local Users and Groups
MMC.EXE - Microsoft Management Console
MSINFO32.EXE - Hardware and software configuration information
PERFMON.MSC - Performance Monitor
REGEDIT.EXE - Run Registry Editor
RRASMGMT.MSC - Routing and Remote Access
RSOP.MSC - Resultant Set of Policy
SECPOL.MSC - Local Security Policy
SERVICES.MSC - Service Configuration
TSCC.MSC - Terminal Services
MSTSC - Remote Desktop
"@

$mmc_open = Read-Host -Prompt "Enter which tool you'd like to open. Default if blank: mmc.exe. Optional args can be included here, separate with spaces as usual. "

if (!$mmc_open) {
    $mmc_open = "mmc.exe"
}

try {
    $cmd = "runas.exe /user:$domain\$(Get-AdminUsername) ""$mmc_open"""
    Start-Process -FilePath "cmd.exe" -ArgumentList "/c","$cmd"
    Write-Output "OK, Exiting"
    Start-Sleep -Milliseconds 250
    Stop-Process -Id $PID
}
catch {
    Write-Error "$_.Exception.Message"
}