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charnim / GBC.ps1
Created December 10, 2022 19:09 — forked from LuemmelSec/GBC.ps1
Give Back Control over Windows functions script
$elevated = ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)
function Show-Menu {
Clear-Host
Write-Host "======================================================"
Write-Host "================ Give Back Control ================"
Write-Host "======================================================"
if($elevated -eq $true){
Write-Host "Local Admin: " -ForegroundColor white -NoNewline; Write-Host $elevated -ForegroundColor Green
Write-Host "We have superpowers. Ready to continue."
@charnim
charnim / Workstation-Takeover.md
Created August 12, 2021 09:49 — forked from gladiatx0r/Workstation-Takeover.md
From RPC to RCE - Workstation Takeover via RBCD and MS-RPChoose-Your-Own-Adventure

Overview

In the default configuration of Active Directory, it is possible to remotely take over Workstations (Windows 7/10/11) and possibly servers (if Desktop Experience is installed) when their WebClient service is running. This is accomplished in short by;

  • Triggering machine authentication over HTTP via either MS-RPRN or MS-EFSRPC (as demonstrated by @tifkin_). This requires a set of credentials for the RPC call.
  • Relaying that machine authentication to LDAPS for configuring RBCD
  • RBCD takeover

The caveat to this is that the WebClient service does not automatically start at boot. However, if the WebClient service has been triggered to start on a workstation (for example, via some SharePoint interactions), you can remotely take over that system. In addition, there are several ways to coerce the WebClient service to start remotely which I cover in a section below.