Intro to Network Traffic Analysis

Intro to Network Traffic Analysis  Medium

Network traffic analysis is used by security teams to monitor network activity and look for anomalies that could indicate security and operational issues. Offensive security practitioners can use network traffic analysis to search for sensitive data such as credentials, hidden applications, reachable network segments, or other potentially sensitive information "on the wire." Network traffic analysis has many uses for attackers and defenders alike.

Created by TreyCraf7

To start this course Sign Up!

Summary

This module introduces network traffic analysis in a general sense for both offensive and defensive security practitioners. Defenders can use network traffic analysis to collect and analyze real-time and historical data of what is happening on the network. Network traffic analysis can also be used by both sides to search for vulnerable protocols and ciphers in use. We will cover principles of network traffic analysis and usage of traffic analysis tools such as Wireshark and tcpdump.

In this module, we will cover:

  • Network traffic analysis principles
  • Tcpdump fundamentals
  • Working with Wireshark
  • Wireshark filters

This module is broken down into sections with accompanying hands-on exercises to practice each of the tactics and techniques we cover. The module includes several guided and non-guided labs to reinforce the techniques covered throughout.

As you work through the module, you will see example commands and command output for the various topics introduced. It is worth reproducing as many examples as possible to reinforce further the concepts presented in each section. You can do this in the Pwnbox provided in the interactive sections or your virtual machine.

You can start and stop the module at any time and pick up where you left off. There is no time limit or "grading," but you must complete all of the exercises and the skills assessment to receive the maximum number of cubes and have this module marked as complete in any paths you have chosen.

The module is classified as "Medium" but assumes a working knowledge of the Linux command line and an understanding of information security fundamentals.

A firm grasp of the following modules can be considered prerequisites for successful completion of this module:

  • Linux Fundamentals
  • Introduction to Networking
  • Web Requests

Sections

  • Network Traffic Analysis
  • Networking Primer - Layers 1-4
  • Networking Primer - Layers 5-7
  • The Analysis Process
  • Analysis in Practice
  • Tcpdump Fundamentals
  • Capturing With Tcpdump (Fundamentals Labs)
  • Tcpdump Packet Filtering
  • Interrogating Network Traffic With Capture and Display Filters
  • Analysis with Wireshark
  • Familiarity With Wireshark
  • Wireshark Advanced Usage
  • Packet Inception, Dissecting Network Traffic With Wireshark
  • Guided Lab: Traffic Analysis Workflow
  • Decrypting RDP connections

Relevant Paths

This module progresses you towards the following Paths

Card image
Basic Toolset

Medium 76 Sections

Cubes Required: 370

In this path, modules cover the basic tools needed to be successful in network and web application penetration testing. This is not an exhaustive listing of all tools (both open source and commercial) available to us as security practitioners but covers tried and true tools that we find ourselves using on every technical assessment that we perform. Learning how to use the basic toolset is essential, as many different tools are used in penetration testing. We need to understand which of them to use for the various situations we will come across.

 Network Enumeration with Nmap

Easy 12 Sections

Nmap is one of the most used networking mapping and discovery tools because of its accurate results and efficiency. The tool is widely used by both offensive and defensive security practitioners. This module covers fundamentals that will be needed to use the Nmap tool for performing effective network enumeration.

 Login Brute Forcing

Easy 11 Sections

Learn how to brute force logins for various types of services and create custom wordlists based on your target.

 Attacking Web Applications with Ffuf

Easy 13 Sections

This module covers the fundamental enumeration skills of web fuzzing and directory brute forcing using the Ffuf tool. The techniques learned in this module will help us in locating hidden pages, directories, and parameters when targeting web applications.

 Cracking Passwords with Hashcat

Medium 14 Sections

This module covers the fundamentals of password cracking using the Hashcat tool.

 SQLMap Essentials

Easy 11 Sections

The SQLMap Essentials module will teach you the basics of using SQLMap to discover various types of SQL Injection vulnerabilities, all the way to the advanced enumeration of databases to retrieve all data of interest.

 Intro to Network Traffic Analysis

Medium 15 Sections

Network traffic analysis is used by security teams to monitor network activity and look for anomalies that could indicate security and operational issues. Offensive security practitioners can use network traffic analysis to search for sensitive data such as credentials, hidden applications, reachable network segments, or other potentially sensitive information "on the wire." Network traffic analysis has many uses for attackers and defenders alike.

To start this course Sign Up!