Book Image

Metasploit Penetration Testing Cookbook

By : Abhinav Singh
Book Image

Metasploit Penetration Testing Cookbook

By: Abhinav Singh

Overview of this book

Metasploit® software helps security and IT professionals identify security issues, verify vulnerability mitigations, and manage expert-driven security assessments. Capabilities include smart exploitation, password auditing, web application scanning, and social engineering. Teams can collaborate in Metasploit and present their findings in consolidated reports. The goal of the software is to provide a clear understanding of the critical vulnerabilities in any environment and to manage those risks.Metasploit Penetration Testing Cookbook targets both professionals and beginners to the framework. The chapters of the book are logically arranged with an increasing level of complexity and cover Metasploit aspects ranging from pre-exploitation to the post-exploitation phase thoroughly. The recipe structure of the book provides a good mix of both theoretical understanding and practical implementation. This book will help readers in thinking from a hacker's perspective to dig out the flaws in target networks and also to leverage the powers of Metasploit to compromise them. It will take your penetration skills to the next level.The book starts with the basics such as gathering information about your target and gradually covers advanced topics like building your own framework scripts and modules. The book goes deep into operating systems-based penetration testing techniques and moves ahead with client-based exploitation methodologies. In the post- exploitation phase, it covers meterpreter, antivirus bypass, ruby wonders, exploit building, porting exploits to framework, and third party tools like armitage, and SET. Metasploit Penetration Testing Cookbook is the required guide to penetration testing and exploitation.
Table of Contents (17 chapters)
Metasploit Penetration Testing Cookbook
About the Author
About the Reviewers

Analyzing an existing meterpreter script

Now that we have learned how to build our own script, let us move ahead and analyze an existing script that performs some advanced tasks. Once you are able to read an existing script completely, you can implement the functions from them according to your need. Code re-use is an effective technique to increase the optimization of codes.

How to do it...

To view an existing script, browse to pentest/exploits/framework3/scripts/meterpreter.

You can find all the available meterpreter scripts in this folder. We will be analyzing the persistence.rb script which helps in setting up a backdoor on the target user. We have discussed the usage of this script in the previous chapter. Here we will look under the hood of how this script functions.

How it works...

Let us analyze each section of the code one by one.

# Default parameters for payload
rhost = Rex::Socket.source_address("")
rport = 4444
delay = 5
install = false
autoconn = false
serv = false