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outis - custom Remote Administration Tool

outis is a custom Remote Administration Tool (RAT) or something like that. Think Meterpreter or Empire-Agent. However, the focus of this tool is neither an exploit toolkit (there are no exploits) nor persistent management of targets. The focus is to communicate between server and target system and to transfer files, share sockets, spawn shells and so on using various methods and platforms.

On the Name

The cyclops Polyphemus in Homer's Odyssey had some issues with name resolution. When he asked for Odysseus' name, the hacker told him it is "Outis" meaning "Nobody" in ancient Greek. Thus, when Polyphemus later shouted, that Nobody was about to kill him, strangly no help arrived.
My thanks to Marcel for remembering this marvelous piece of classic tale.

Dependencies for the Handler

Archlinux users can install the following packages:
  • python3 # includes cmd, tempfile, ...
  • python-progressbar2
  • python-dnspython
  • python-crypto
  • python-pyopenssl
  • and maybe more...
In other distributions the names may differ, for instance, there is a module named crypto and a module named pycrypto. We need the latter.
Also, older versions might cause problems:
  • pyopenssl needs to be version 16.1.0 or newer, check as follows:
   $ python3 -c 'import OpenSSL; print(OpenSSL.version.__version__)'
You can set up a python virtual environment quite easily:
$ virtualenv outis-venv
$ source ./outis-venv/bin/activate
(outis-venv) $ pip install progressbar2 dnspython pycrypto pyopenssl
This results to the following package list, which seems to work for me:
$ pip freeze
appdirs==1.4.3
asn1crypto==0.22.0
cffi==1.10.0
cryptography==1.8.1
dnspython==1.15.0
idna==2.5
packaging==16.8
progressbar2==3.18.1
pycparser==2.17
pycrypto==2.6.1
pyOpenSSL==16.2.0
pyparsing==2.2.0
python-utils==2.1.0
six==1.10.0

Installation

Clone this git with recursive flag to also clone its submodules in the thirdpartytools folder:
git clone --recursive ...
The handler runs on Python 3. Install its dependencies and run it. It will generate stagers, agents and everything else for you.
To bind low ports without needing root privileges, consider using a capability wrapper.

Terms

  • agent: software, that runs on the victim system
  • handler: software, that parses your commands and leads the agents (usually it runs on your server)
  • stager: short script that downloads the agent (using the transport module) and runs it
  • transport: communication channel between stager/agent and handler, e.g. ReverseTCP
  • platform: victim architecture to use for stager/agent scripts, e.g. PowerShell
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