Book Image

Securing Network Infrastructure

By : Sairam Jetty, Sagar Rahalkar
Book Image

Securing Network Infrastructure

By: Sairam Jetty, Sagar Rahalkar

Overview of this book

Digitization drives technology today, which is why it’s so important for organizations to design security mechanisms for their network infrastructures. Analyzing vulnerabilities is one of the best ways to secure your network infrastructure. This Learning Path begins by introducing you to the various concepts of network security assessment, workflows, and architectures. You will learn to employ open source tools to perform both active and passive network scanning and use these results to analyze and design a threat model for network security. With a firm understanding of the basics, you will then explore how to use Nessus and Nmap to scan your network for vulnerabilities and open ports and gain back door entry into a network. As you progress through the chapters, you will gain insights into how to carry out various key scanning tasks, including firewall detection, OS detection, and access management to detect vulnerabilities in your network. By the end of this Learning Path, you will be familiar with the tools you need for network scanning and techniques for vulnerability scanning and network protection. This Learning Path includes content from the following Packt books: •Network Scanning Cookbook by Sairam Jetty •Network Vulnerability Assessment by Sagar Rahalkar
Table of Contents (28 chapters)
Title Page
Copyright and Credits
About Packt
Contributors
Preface
Index

Anti-forensics


In the previous section, we saw that the penetration testing tasks leave behind multiple tracks and trails. A post-incident forensic investigation can reveal a lot about how the compromise happened. One of the important factors when performing a forensic analysis is timestamps. File timestamps help recreate a series of activities that might have happened.

Metasploit offers capabilities that could effectively be used in overriding timestamp values and mislead the forensic investigation.

At first, we use an exploit against our target to get Meterpreter access. Then we use the timestomp <filename> -v command to list the various timestamps associated with the file:

We can now try to erase the timestamps of a file using the timestamp <filename> -b command. This command will wipe out all the timestamps associated with the target file: