Book Image

Purple Team Strategies

By : David Routin, Simon Thoores, Samuel Rossier
Book Image

Purple Team Strategies

By: David Routin, Simon Thoores, Samuel Rossier

Overview of this book

With small to large companies focusing on hardening their security systems, the term "purple team" has gained a lot of traction over the last couple of years. Purple teams represent a group of individuals responsible for securing an organization’s environment using both red team and blue team testing and integration – if you’re ready to join or advance their ranks, then this book is for you. Purple Team Strategies will get you up and running with the exact strategies and techniques used by purple teamers to implement and then maintain a robust environment. You’ll start with planning and prioritizing adversary emulation, and explore concepts around building a purple team infrastructure as well as simulating and defending against the most trendy ATT&CK tactics. You’ll also dive into performing assessments and continuous testing with breach and attack simulations. Once you’ve covered the fundamentals, you'll also learn tips and tricks to improve the overall maturity of your purple teaming capabilities along with measuring success with KPIs and reporting. With the help of real-world use cases and examples, by the end of this book, you'll be able to integrate the best of both sides: red team tactics and blue team security measures.
Table of Contents (20 chapters)
1
Part 1: Concept, Model, and Methodology
6
Part 2: Building a Purple Infrastructure
12
Part 3: The Most Common Tactics, Techniques, and Procedures (TTPs) and Defenses
14
Part 4: Assessing and Improving

Redirectors

We couldn't mention red team infrastructure without addressing the topic of redirectors. Redirectors are a key component of the infrastructure and are placed between the victims and the C2 servers. In other words, they will allow us to avoid a full blockage of the exercise's infrastructure by the blue team once they find out the first indicator of the attack. Indeed, they will hide our backend C2, and they will also hide our communications when interacting with the victim asset, therefore, acting just like an intermediate:

Figure 5.6 – Redirector

We could use as many redirectors as we have C2 servers, but to limit the size of our infrastructure, we could also set up one redirector for multiple backend C2 servers. Alternatively, if you wish to increase the difficulty level for the blue team, you could also implement multiple redirectors for each backend C2. In any case, the redirector will forward the traffic sent or received from...