Tutorial Playlist

Cyber Security Tutorial: A Step-by-Step Guide

Overview

What is Cybersecurity?

Lesson - 1

Cyber Security for Beginners

Lesson - 2

How to Become a Cybersecurity Engineer?

Lesson - 3

What is Ethical Hacking?

Lesson - 4

What is Penetration Testing?: A Step-by-Step Guide

Lesson - 5

What Is SQL Injection: How to Prevent SQL Injection

Lesson - 6

How to Become an Ethical Hacker?

Lesson - 7

What Is a Firewall and Why Is It Vital?

Lesson - 8

The Complete Know-How on the

Lesson - 9

A Definitive Guide to Learn the SHA 256 Algorithm

Lesson - 10

What Is a Ransomware Attack and How Can You Prevent It?

Lesson - 11

A Look at the Top 5 Programming Languages for Hacking

Lesson - 12

The Most Informative Guide on What Is an IP Address?

Lesson - 13

The Best Ethical Hacking + Cybersecurity Books

Lesson - 14

10 Types of Cyber Attacks You Should Be Aware in 2022

Lesson - 15

The Top Computer Hacks of All Time

Lesson - 16

Top 6 Cyber Security Jobs in 2022

Lesson - 17

The Best Guide to The Top Cybersecurity Interview Questions

Lesson - 18

What Is a Brute Force Attack and How to Protect Our Data Against It?

Lesson - 19

The Top 8 Cybersecurity Skills You Must Have

Lesson - 20

Your Guide to Choose the Best Operating System Between Parrot OS vs. Kali Linux

Lesson - 21

All You Need to Know About Parrot Security OS

Lesson - 22

The Best and Easiest Way to Understand What Is a VPN

Lesson - 23

What Is NMap? A Comprehensive Tutorial for Network Mapping

Lesson - 24

What Is Google Dorking? Your Way to Becoming the Best Google Hacker

Lesson - 25

Your Best Guide to a Successful Cyber Security Career Path

Lesson - 26

The Value of Python in Ethical Hacking and a Password Cracking Tutorial

Lesson - 27

The Best Guide to Understand What Is TCP/IP Model?

Lesson - 28

What Are Keyloggers and Its Effect on Our Devices?

Lesson - 29

Best Guide to Understand the Importance of What Is Subnetting

Lesson - 30

Your Guide to What Is 5G and How It Works

Lesson - 31

How to Crack Passwords and Strengthen Your Credentials Against Brute-Force

Lesson - 32

A Look at ‘What Is Metasploitable’, a Hacker’s Playground Based on Ubuntu Virtual Machines

Lesson - 33

One-Stop Guide to Understanding What Is Distance Vector Routing?

Lesson - 34

Best Walkthrough for Understanding the Networking Commands

Lesson - 35

Best Guide to Understanding the Operation of Stop-and-Wait Protocol

Lesson - 36

The Best Guide to Understanding the Working and Importance of Go-Back-N ARQ Protocol

Lesson - 37

What Are Digital Signatures: A Thorough Guide Into Cryptographic Authentication

Lesson - 38

The Best Spotify Data Analysis Project You Need to Know

Lesson - 39

A One-Stop Solution Guide to Understand Data Structure and Algorithm Complexity

Lesson - 40

Your One-Stop Guide ‘On How Does the Internet Work?’

Lesson - 41

An Introduction to Circuit Switching and Packet Switching

Lesson - 42

One-Stop Guide to Understanding What Is Network Topology?

Lesson - 43

A Deep Dive Into Cross-Site Scripting and Its Significance

Lesson - 44

The Best Walkthrough on What Is DHCP and Its Working

Lesson - 45

A Complete Look at What a Proxy Is, Along With the Working of the Proxy Server

Lesson - 46

A Detailed Guide to Understanding What Identity and Access Management Is

Lesson - 47

The Best Guide to Understanding the Working and Effects of Sliding Window Protocol

Lesson - 48

The Best Guide That You’ll Ever Need to Understand Typescript and Express

Lesson - 49

Express REST API

Lesson - 50

All You Need to Know About Express JS Middleware

Lesson - 51

An Absolute Guide to Know Everything on Expressions in C

Lesson - 52

A Definitive Guide on How to Create a Strong Password

Lesson - 53

Ubuntu vs. Debian: A Look at Beginner Friendly Linux Distribution

Lesson - 54

Your One-Stop Guide to Learn Command Prompt Hacks

Lesson - 55

Best Walkthrough to Understand the Difference Between IPv4 and IPv6

Lesson - 56

What Is Kali NetHunter? A Deep Dive Into the Hackbox for Android

Lesson - 57

A Perfect Guide That Explains the Differences Between a Hub and a Switch

Lesson - 58

What Is Network Security? Benefits, Types of Tools To Protect Your Shared Network

Lesson - 59

What Is CIDR? And Its Importance in the Networking Domain

Lesson - 60

A Thorough Guide on Application Security: Benefits, Risks, and Protection Mechanisms

Lesson - 61
What is Penetration Testing?: A Step-by-Step Guide

Surely we’ve all heard of the term “hacking,” which refers to the act of getting access to someone’s personal information without their knowledge or consent. Hacking had grown significantly since the 1960s when the term was introduced. The number of attacks on IT organizations, state militaries, countries, and personal computers keeps on growing even now. It’s a big problem, but organizations aren’t necessarily prepared for these types of attacks, which continue to grow in sophistication.  

Ethical hacking” was introduced as a way of getting ahead of the curve. Companies and governments decided to recruit ethical hackers to protect them because only a hacker can stop a hacker. Then, the term “penetration testing” was introduced. These terms are commonly interchanged, but there are slight differences between both of them. We’ll discuss their differences and similarities.

What is Ethical Hacking?

Ethical hacking is the process of locating weaknesses or vulnerabilities in computers and information systems using the intent and actions of malicious hackers. There are two types of hackers: 

  1. Malicious hacker: This hacker hacks with a malicious intent to do damage to the victim
  2. Ethical hacker: This hacker hacks using the same method but passes on the vulnerabilities to the security department

Malicious and Ethical Hacker

   Fig: Difference between a malicious and ethical hacker

Ethical Hacker Responsibilities

Here are some responsibilities of an ethical hacker:

  1. Create scripts that test for vulnerabilities
  2. Develop tools to increase security
  3. Perform risk assessment
  4. Setup security policies
  5. Train staff for network security

Now that we have seen what ethical hacking and the roles of an ethical hacker is, it’s time to learn about penetration testing.

What is Penetration Testing?

Penetration testing which is also known as pen-test is a part of ethical hacking, where it focuses explicitly on penetrating only the information systems. Now, how is penetration testing different from ethical hacking? Penetration testing focuses exclusively on information systems, while ethical hacking is a broad area to protect the systems. Ethical hacking has more job roles and responsibilities than penetration testing. 

Now that we have understood the difference between ethical hacking and penetration testing let’s take a look at the platform used by ethical hackers.

What is Kali Linux?

Kali Linux is a Debian-based operating system with advanced penetration testing and security auditing features. Most hackers also use this platform. Kali contains hundreds of tools which are used for various information security tasks like computer forensics and reverse engineering. The main features of Kali Linux include:

  1. 600+ tools
  2. Open-source
  3. Mass customization
  4. Wide range wireless support
  5. Multi-language support
  6. Fast injections

Now, let’s cover the phases of ethical hacking and penetration testing.

CEH (v11) - Certified Ethical Hacking Course

Get trained on advanced methodologies hackers useView Course
CEH (v11) - Certified Ethical Hacking Course

Phases of Ethical Hacking and Penetration Testing

To carry out a structured attack, ethical hacking employs various phases. These are: 

  1. Reconnaissance: The attacker uses various hacking tools (NMAP, Hping) to obtain information about the target
  2. Scanning: Using tools such as NMAP and Nexpose, the attacker tries to spot vulnerabilities in the system
  3. Gain access: Here, the attacker attempts to exploit the vulnerability using the Metasploit tool
  4. Maintain access: Now, the attacker tries to install some backdoors into the victim’s system for future access (Metasploit is used again to achieve this)
  5. Clear tracks: In this stage, the attacker clears all evidence of the attack as no attacker likes to get caught
  6. Reporting: Finally, the ethical hacker documents a report which consists of the vulnerabilities spotted, the tools used to exploit, and the success rate of the operation

Now that we know about the process involved in ethical hacking let’s learn about the areas in penetration testing.

Areas of Penetration Testing

  1. Network services: It finds weaknesses and vulnerabilities in the security of the network infrastructure (for example, firewall testing)
  2. Web application: Security vulnerabilities or weaknesses will get discovered in web-based applications (for example, Outlook)
  3. Client-side: It finds vulnerabilities in software on a client computer, such as an employee workstation (for example, media player)
  4. Wireless: This test examines all the wireless devices which are used in a corporation (for example, tablets or smartphones)
  5. Social engineering: Getting confidential information by tricking an employee of the corporation to reveal such items (for example, phishing)

After learning about the areas of penetration testing, let’s see some tools that are used for this process.

Penetration Testing Tools

These are some of the more popular tools that are frequently used by hackers:

  1. BeEF
  2. Metasploit
  3. NMAP
  4. Nessus Vulnerability Scanner
  5. WIRESHARK
  6. SQLMap
  7. BackTrack
  8. John the Ripper

Penetration Testing Tools

Build your network security skill-set and beat hackers at their own game with the Certified Ethical Hacking Course. Check out the course preview now!

Turn Ethical Hacking into a Lucrative Career

If you’re thinking of becoming an ethical hacker, now is the best time. The demand for ethical hackers and penetration testers is increasing daily as the cyberattacks are increasing. Hackers are finding new ways to hack into systems every day, while organizations are left scrambling to catch up. Cybersecurity experts are in high demand and work tirelessly every day to keep the organization safe and secure from malicious hackers. Get certified and learn career-ready skills today by signing up for Simplilearn’s Certified Ethical Hacking (CEH v10) Course.

About the Author

Lakshay MorLakshay Mor

Lakshay Mor is a Research Analyst at Simplilearn who specializes in the cybersecurity field. He has in-depth knowledge of ethical hacking and penetration testing and passionately writes about these hot topics. He loves playing basketball and a big-time fan of gaming.

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