Book Image

Cybersecurity Attacks – Red Team Strategies

By : Johann Rehberger
Book Image

Cybersecurity Attacks – Red Team Strategies

By: Johann Rehberger

Overview of this book

It's now more important than ever for organizations to be ready to detect and respond to security events and breaches. Preventive measures alone are not enough for dealing with adversaries. A well-rounded prevention, detection, and response program is required. This book will guide you through the stages of building a red team program, including strategies and homefield advantage opportunities to boost security. The book starts by guiding you through establishing, managing, and measuring a red team program, including effective ways for sharing results and findings to raise awareness. Gradually, you'll learn about progressive operations such as cryptocurrency mining, focused privacy testing, targeting telemetry, and even blue team tooling. Later, you'll discover knowledge graphs and how to build them, then become well-versed with basic to advanced techniques related to hunting for credentials, and learn to automate Microsoft Office and browsers to your advantage. Finally, you'll get to grips with protecting assets using decoys, auditing, and alerting with examples for major operating systems. By the end of this book, you'll have learned how to build, manage, and measure a red team program effectively and be well-versed with the fundamental operational techniques required to enhance your existing skills.
Table of Contents (17 chapters)
1
Section 1: Embracing the Red
6
Section 2: Tactics and Techniques

Alerting for suspicious file access on macOS

On macOS, there are a couple of ways to monitor file access. There is OpenBSM. The Basic Security Module (BSM) was originally created by Sun Microsystems and can be used for auditing. There are also tracing utilities such as fs_usage. In this section, we will explore multiple ways to monitor access to decoy files.

To get started, go ahead and create two decoy files with interesting names that might trick an adversary who is poking around your machines:

$ echo "S3cr3tP@$$W0Rd!" > /Users/john/password.txt
$ echo "S3cr3tP@$$W0Rd!" > /tmp/password.txt

The preceding commands will create two decoy files. We will set up monitoring for read access to these files later and trigger notifications when the file is being accessed. Now, let's explore how we can monitor access to these files. To get started, let's explore the fs_usage tool.

Leveraging fs_usage for quick and simple file access monitoring...