Book Image

Network Vulnerability Assessment

By : Sagar Rahalkar
Book Image

Network Vulnerability Assessment

By: Sagar Rahalkar

Overview of this book

The tech world has been taken over by digitization to a very large extent, and so it’s become extremely important for an organization to actively design security mechanisms for their network infrastructures. Analyzing vulnerabilities can be one of the best ways to secure your network infrastructure. Network Vulnerability Assessment starts with network security assessment concepts, workflows, and architectures. Then, you will use open source tools to perform both active and passive network scanning. As you make your way through the chapters, you will use these scanning results to analyze and design a threat model for network security. In the concluding chapters, you will dig deeper into concepts such as IP network analysis, Microsoft Services, and mail services. You will also get to grips with various security best practices, which will help you build your network security mechanism. By the end of this book, you will be in a position to build a security framework fit for an organization.
Table of Contents (15 chapters)

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:

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