PurpleDome creates simulated systems which hack each other

It creates several virtual machines to simulate a target network. A Kali attacker will be spawned and use configured attacks to blast at the targets. Those attacks can be Kali command line tools, Caldera abilities or Metasploit tools.

The goal is to test sensors and detection logic on the targets and in the network and improve them.

The system is at the same time reproducible and quite flexible (target system wise, vulnerabilities on the targets, attacks).

Installation

On a current Ubuntu system, just execute the init.sh to install the required packages and set up the virtual env.

./init.sh

Default vm will be vagrant and virtualbox

Before using any PurpleDome commands switch into the python environment:

source venv/bin/activate

My first experiment

Run

python3 ./experiment_control.py -vvv  run --configfile hello_world.yaml

This will:

• Use vagrant to generate attacker and target
• run them
• run several attacks from the attacker to the target
• zip sensor logs and attack logs together

Building the machines from vagrant will take some time ont he first run. Please be patient.

After the experiment ran, open the zip file with the attack log and all the sensor logs:

file-roller loot/2021_11_11___12_13_14/2021_11_11___12_13_14.zip

or jump directly into the human readable attack log

evince tools/human_readable_documentation/build/latex/purpledomesimulation.pdf

(which is included in the zip as well)

Running the basic commands

All command line tools have a help included. You can access it by the "--help" parameter

python3 ./experiment_control.py -v  run

• -v is verbosity. To spam stdout use -vvv
• run is the default command
• --configfile is optional. If not supplied it will take experiment.yaml

Most of the configuration is done in the yaml config file. For more details check out the full documentation

Testing

Basic code and unit tests can be run by

make test

That way you can also see if your env is set up properly.

It will also check the plugins you write for compatibility.

the tool

./pydantic_test.py

is not included in the make test. But you can use it manually to verify your yaml config files. As they tend to become quite complex this is a time safer.

More documentation

This README is just a short overview. In depth documentation can be found in the doc folder.

Documentation is using sphinx. To compile it, go into this folder and call

make html

Use your browser to open build/html/index.html and start reading.

Development

The code is stored in https://github.com/avast/PurpleDome. Feel free to fork it and create a pull request.

Development happens in feature branches branched of from develop branch. And all PRs go back there. The branch release is a temporary branch from develop and will be used for bug fixing before a PR to main creates a new release. Commits in main will be marked with tags and the changelog.txt file in human readable form describe the new features.

https://nvie.com/posts/a-successful-git-branching-model/

Short:

• As a user, the main branch is relevant for you
• Start a feature branch from develop
• When doing a hotfix, branch from main

GIT

Branching your own feature branch

$ git checkout development
$ git pull --rebase=preserve
$ git checkout -b my_feature

Do some coding, commit.

Rebase before pushing

$ git checkout development
$ git pull --rebase=preserve
$ git checkout my_feature
$ git rebase development

Code review will be happening on github. If everything is nice, you should squash the several commits you made into one (so one commit = one feature). This will make code management and debugging a lot simpler when you commit is added to develop and main branches

git rebase --interactive
git push --force