Developing custom modules

Let's dig deep into the process of writing a module. Metasploit has various modules such as payloads, encoders, exploits, NOPs, and auxiliaries. In this section, we will cover the essentials of developing a module; then, we will look at how we can actually create our own custom modules.

In this section, we will discuss auxiliary and post-exploitation modules. However, we will discuss exploit modules in detail in the next chapter as they are dedicated to building exploits. Coming back to this chapter, let's discuss the essentials of building a module first.

Building a module in a nutshell

Let's understand how things are arranged in the Metasploit framework as well as what all the components of Metasploit are and what they are meant to do.

The architecture of the Metasploit framework

Metasploit is composed of various components. These components include all the important libraries, modules, plugins, and tools. A diagrammatic view of the structure of Metasploit is as follows...