Book Image

PowerShell Automation and Scripting for Cybersecurity

By : Miriam C. Wiesner
5 (2)
Book Image

PowerShell Automation and Scripting for Cybersecurity

5 (2)
By: Miriam C. Wiesner

Overview of this book

Take your cybersecurity skills to the next level with this comprehensive guide to PowerShell security! Whether you’re a red or blue teamer, you’ll gain a deep understanding of PowerShell’s security capabilities and how to use them. After revisiting PowerShell basics and scripting fundamentals, you’ll dive into PowerShell Remoting and remote management technologies. You’ll learn how to configure and analyze Windows event logs and understand the most important event logs and IDs to monitor your environment. You’ll dig deeper into PowerShell’s capabilities to interact with the underlying system, Active Directory and Azure AD. Additionally, you’ll explore Windows internals including APIs and WMI, and how to run PowerShell without powershell.exe. You’ll uncover authentication protocols, enumeration, credential theft, and exploitation, to help mitigate risks in your environment, along with a red and blue team cookbook for day-to-day security tasks. Finally, you’ll delve into mitigations, including Just Enough Administration, AMSI, application control, and code signing, with a focus on configuration, risks, exploitation, bypasses, and best practices. By the end of this book, you’ll have a deep understanding of how to employ PowerShell from both a red and blue team perspective.
Table of Contents (19 chapters)
1
Part 1: PowerShell Fundamentals
6
Part 2: Digging Deeper – Identities, System Access, and Day-to-Day Security Tasks
12
Part 3: Securing PowerShell – Effective Mitigations In Detail

Making your code reusable

In this section, we will explore the concept of making your code reusable in PowerShell. Reusability is an important aspect of coding that allows you to create a function, cmdlet, or module once and use it multiple times without having to rewrite the same code again and again. Through this, you can save time and effort in the long run.

We will start by discussing cmdlets, followed by functions and aliases, and finally, we will explore PowerShell modules, which are collections of PowerShell commands and functions that can be easily shared and installed on other systems, which is a great way to package and distribute your reusable code.

Cmdlets

A cmdlet (pronounced as commandlet) is a type of PowerShell command that performs a specific task and can be written in C# or in another .NET language. This includes advanced functions, which are also considered cmdlets but have more advanced features than regular functions.

Get-Command can help you to differentiate...