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Ethical Hacking Tutorials

Ethical Hacking Fundamentals

What is Hacking?

Hacking is identifying weakness in computer systems or networks to exploit its weaknesses to gain access. Example of Hacking: Using password cracking algorithm to gain access to a system

Computers have become mandatory to run a successful businesses. It is not enough to have isolated computers systems; they need to be networked to facilitate communication with external businesses. This exposes them to the outside world and hacking. Hacking means using computers to commit fraudulent acts such as fraud, privacy invasion, stealing corporate/personal data, etc. Cyber crimes cost many organizations millions of dollars every year. Businesses need to protect themselves against such attacks.

An Ethical Hacker exposes vulnerabilities in software to help business owners fix those security holes before a malicious hacker discovers them. In this course, you learn all about Ethical hacking with loads of live hacking examples to make the subject matter clear.

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What is Ethical Hacking?

Ethical Hacking is identifying weakness in computer systems and/or computer networks and coming with countermeasures that protect the weaknesses. Ethical hackers must abide by the following rules.

  • Get written permission from the owner of the computer system and/or computer network before hacking.
  • Protect the privacy of the organization been hacked.
  • Transparently report all the identified weaknesses in the computer system to the organization.
  • Inform hardware and software vendors of the identified weaknesses.

Why Ethical Hacking?

Information is one of the most valuable assets of an organization. Keeping information secure can protect an organization’s image and save an organization a lot of money.
Hacking can lead to loss of business for organizations that deal in finance such as PayPal. Ethical hacking puts them a step ahead of the cyber criminals who would otherwise lead to loss of business.

Who is a Hacker? Types of Hackers

A Hacker is a person who finds and exploits the weakness in computer systems and/or networks to gain access. Hackers are usually skilled computer programmers with knowledge of computer security.

Hackers are classified according to the intent of their actions. The following list classifies hackers according to their intent.

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Description

Ethical Hacker (White hat): A hacker who gains access to systems with a view to fix the identified weaknesses. They may also perform penetration Testing and vulnerability assessments.
Cracker (Black hat): A hacker who gains unauthorized access to computer systems for personal gain. The intent is usually to steal corporate data, violate privacy rights, transfer funds from bank accounts etc.

Grey hat: A hacker who is in between ethical and black hat hackers. He/she breaks into computer systems without authority with a view to identify weaknesses and reveal them to the system owner.

Script kiddies: A non-skilled person who gains access to computer systems using already made tools.

Hacktivist: A hacker who use hacking to send social, religious, and political, etc. messages. This is usually done by hijacking websites and leaving the message on the hijacked website.

Phreaker: A hacker who identifies and exploits weaknesses in telephones instead of computers.

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What is Cybercrime?

Cyber crime is the use of computers and networks to perform illegal activities such as spreading computer viruses, online bullying, performing unauthorized electronic fund transfers, etc. Most cybercrimes are committed through the internet. Some cybercrimes can also be carried out using Mobile phones via SMS and online chatting applications.

Type of Cybercrime

The following list presents the common types of cybercrimes:

  • Computer Fraud: Intentional deception for personal gain via the use of computer systems.
  • Privacy violation: Exposing personal information such as email addresses, phone number, account details, etc. on social media, websites, etc.
  • Identity Theft: Stealing personal information from somebody and impersonating that person.
  • Sharing copyrighted files/information: This involves distributing copyright protected files such as eBooks and computer programs etc.
  • Electronic funds transfer: This involves gaining an un-authorized access to bank computer networks and making illegal fund transfers.
    Electronic money laundering: This involves the use of the computer to launder money.
  • ATM Fraud: This involves intercepting ATM card details such as account number and PIN numbers. These details are then used to withdraw funds from the intercepted accounts.
  • Denial of Service Attacks: This involves the use of computers in multiple locations to attack servers with a view of shutting them down.
  • Spam: Sending unauthorized emails. These emails usually contain advertisements.

Skills Required to Become a Ethical Hacker

Skills allow you to achieve your desired goals within the available time and resources. As a hacker, you will need to develop skills that will help you get the job done. These skills include learning how to program, use the internet, good at solving problems, and taking advantage of existing security tools.

Why should you learn how to program?

  1. Hackers are the problem solver and tool builders, learning how to program will help you implement solutions to problems. It also differentiates you from script kiddies.
  2. Writing programs as a hacker will help you to automate many tasks which would usually take lots of time to complete.
  3. Writing programs can also help you identify and exploit programming errors in applications that you will be targeting.
  4. You don’t have to reinvent the wheel all the time, and there are a number of open source programs that are readily usable. You can customize the already existing applications and add your methods to suit your needs.

Programming languages that are useful to hackers

SR NO.COMPUTER
LANGUAGES
DESCRIPTIONPLATFORMPURPOSE
1

HTML

Language used to write web pages.*Cross platform

Web hacking

Login forms and other data entry methods on the web use HTML forms to get data. Been able to write and interpret HTML, makes it easy for you to identify and exploit weaknesses in the code.

2

JavaScript

Client side scripting language*Cross platform

Web Hacking

JavaScript code is executed on the client browse. You can use it to read saved cookies and perform cross site scripting etc.

3

PHP

Server side scripting language*Cross platform

Web Hacking

PHP is one of the most used web programming languages. It is used to process HTML forms and performs other custom tasks. You could write a custom application in PHP that modifies settings on a web server and makes the server vulnerable to attacks.

4

SQL

Language used to communicate with database*Cross platform

Web Hacking

Using SQL injection, to by-pass web application login algorithms that are weak, delete data from the database, etc.

5

Python

Ruby

Bash

Perl

High level programming languages*Cross platform

Building tools & scripts

They come in handy when you need to develop automation tools and scripts. The knowledge gained can also be used in understand and customization the already available tools.

6

C & C++

High level programming*Cross platform

Writing exploits, shell codes, etc.

They come in handy when you need to write your own shell codes, exploits, root kits or understanding and expanding on existing ones.  

7

Java

CSharp

Visual Basic

VBScript

Other languages

Java & CSharp are *cross platform. Visual Basic is specific to Windows

Other uses

The usefulness of these languages depends on your scenario.

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Other skills

In addition to programming skills, a good hacker should also have the following skills:

  • Know how to use the internet and search engines effectively to gather information.
  • Get a Linux-based operating system and the know the basics commands that every Linux user should know.
  • Practice makes perfect, a good hacker should be hard working and positively contribute to the hacker community. He/she can contribute by developing open source programs, answering questions in hacking forums, etc.

How to Get Started?

If you want to start a career in Ethical Hacking, make a lateral move into another field, or advance up the ladder at your current job, learning this course is an excellent place to begin your transition. And since the course is designed for all levels of people, you can find the right fit for you.

Summary

  • Hacking is identifying and exploiting weaknesses in computer systems and/or computer networks.
  • Cybercrime is committing a crime with the aid of computers and information technology infrastructure.
  • Ethical Hacking is about improving the security of computer systems and/or computer networks.
  • Ethical Hacking is legal.
  • Programming skills are essential to becoming an effective hacker.
  • Network skills are essential to becoming an effective hacker
  • SQL skills are essential to becoming an effective hacker.
  • Hacking tools are programs that simplify the process of identifying and exploiting weaknesses in computer systems.

Once you’ve decided it’s time to learn EH, turn to learnerscoach for training. Our content is developed by industry leaders such as Edureka, an emphasis on hands-on learning, and 24×7 support. You’ll learn the course, and then you can land one of those high-paying EH jobs!

Happy Learning !!!

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