MAC Changer

MAC Changer

MAC Changer is the python tool to change MAC address of the devices. We will teach you the basics of Python by creating this tool. We will teach you how to create a python tool for hacking in this lectures. We create minimum of 12 tools. This is the first tool in it. 

Introduction

In this post we will learn What is MAC address? , Why we have change it? and How to change MAC address using terminal?

Module

In this post we will learn about What is Module? What is function?  and How to use it? we will use subprocess module to execute system commands

Simple MAC Changer tool

In this post we will create a simple MAC Changer tool by using subprocess module. Details about how to use module and functions are in the previous post. In this post we just learn how to use the MAC Changing commands inside subprocess module.

Variables

In this post we will learn what is variable and How to use it? and how to give a name for the variable for our MAC Changer tool

Getting User Input

In this post we will learn how to use variables inside MAC Changer tool. Also we will learn how to get user input using function called input(). And also learn how to use it inside MAC Changer tool

Handling User Input

As we created the program previously using subprocess module. There is problem in that that is explained in this post

OPTPARSE

In this we can learn how to create command line input using orpparse module. By this we can give values when run the python tool.

Function

Functions is used in almost all the program. We also use functions in our MAC Changer tool before like input() , print(), and more. These functions are known as Build in function. We will discuss that below

Return value from Function

 we are going to create a function for getting optparse commands. It need to return a value for option and arguments. For that we use a function called "return". 

Decision Making

Program that causes a jump of control from one block to the other is called conditional statement. 

There are four types:

• if
• if...else
• if...else...else
• nested if

Identify Error for user

 If we forgot to give any value needed for the MAC Changer tool the error will occur and it is somewhat difficult to understand for beginner. To make clarity for user we use if statement to make a two error statement for not giving interface and mac address

Algorithm

An Algorithm is a step-by-step procedure for solving a problem.
Algorithm is an ordered sequence of finite, well defined, unambiguous instruction for completing a task
It is a representation of a problem

Step 1:

In this post we will do the first step on the Algorithm we discuss previously. For that we use inside that we use check_output function. It will use to get the returned value of the system command.

Step2:

Regex Theory

To read the MAC Address from output we use RegEx method.

RegEx

• A RegEx or Regular Expression, is a sequence of characters that forms a search pattern.
• RegEx can be used to check if a string contains the specified search pattern.
• Uses rules to match the pattern

Step 2:

Use RegEx in MAC Changer

To use Regex we use to import re module. And we use search function in re module. I have explain the theory in previous post so I will just explain the commands we use.

Rearranging Commands

In this post we will combine the knowledge from beginning amd rearrange the program

Finishing up

In this post we are going to finish up our MAC Changer tool. This is the last two step in our Algorithm. We are going to check whether the MAC Address is change or not. And also we going to print the appropriate message for the result.

We will keeps on updating to make it better just follow us to learn more