Original subtitles

In this lecture, we're going to learn how to generate an undetectable backdoor.

A backdoor is just a file that when executed on the target computer,

it will give us full access to that computer.

So, it'll basically allow us to hack it and do anything that we want on that computer.

There is a number of ways to generate backdoors and what we're interested in, is to generate a backdoor

that is not detectable by antivirus programs.

Now, this is not very hard to achieve as you'll see

and we're going to do this using a tool called 'Veil Framework'.

Now, I already have Veil's project page opened in here.

I'm going to include its link in the Resources of this lecture, on the top left.

Now, if you're not familiar with Git,

this is a version control system that allows programmers to host, share and update their programs.

So, to download something from GitHub, all you have to do is click on the green button in here,

copy this link

and then go to terminal,

navigate to the location, where you want to download this project

and in this example, I want to go to 'opt'.

This is the directory where you should be installing optional software

and if I do 'ls',

you will see, I only have one directory in here called 'Teeth'.

So, to download Veil in here,

all you have to do is, first of all, write the Git command, which is 'git'.

And what we want to do, is we want to 'clone' a repository

and the link for this repository is the link that were copied in here from the green button.

So I'm just going to paste it here.

So, a very, very simple command, we're using Git to download a repository from Git.

We're saying that, "I want to clone this repository."

and the link of the repository that I want to clone is this one.

So, if I hit Enter now, you'll see it's going to download it for me

and once it's done, if we do 'ls',

you will see we have a new directory called 'Veil'.

And we can navigate to this directory by doing 'cd Veil'.

And in here, if I list, you'll see we have a number of files

but the main file for the program is this one, 'Veil.py'

But we can't run this file right now, because we still didn't install this tool.

Now, Veil relies on a large number of libraries and a third party programs.

So, you're going to have to install all of these first, before you can use it.

Now luckily, you don't have to do this manually because Veil comes with an installation script.

Now, this script is placed in the 'config directory'.

So, we have to navigate in this directory first.

So, we'll do 'cd config'.

And if we list here,

you'll see we have a file called 'setup.sh'.

Now as the name suggests, if you're on this file, it will install all the needed libraries

and third party applications that Veil uses.

So, to run an 'sh' or a 'bash' file from the terminal,

all you have to do is type './' followed by the file name

and in our case, it's called 'setup.sh'.

Now, you can run the set up as is, like this,

but I want to add two arguments to this.

The first argument that I want to add, is the '--silent'.

This argument will run the installer as an unattended installer.

So, basically it will install everything with its default settings and it won't ask us to configure anything.

The next argument that I want to add is the '--force'.

So that in case, you're running this a second time, if you already installed Veil and something went wrong

and you're installing it again,

the 'force' argument will override any existing installations.

Now, I didn't just figure out these arguments myself.

If you actually read the description here on the project page, you'll learn exactly how to install it

and what each of these arguments do.

So, I'm going to hit Enter now.

And as you can see now, it's going to automatically gather information about my current operating system.

It's going to install the needed libraries and the needed applications.

This might take some time because it's going to download a lot of packages.

So, please be patient and give it, it's time.

Now, I'm going to post the video because this is going to take some time and I'll continue recording once it's done.

So, right now, as you can see the installation is finished and it's telling me that everything is done.

So, I can run the tool now.

But what I'm actually going to do is, I'm going to first close this terminal window and open a new window,

just to show you, how you would start it by default.

'Cause usually when you open terminal, you'll actually be in the root directory.

So, if I do 'pwd' right now, you'll see I am in route.

So, in order to run Veil, we have to first navigate to the location where you downloaded it

and we downloaded it to the 'opt' directory.

So, we're going to do 'cd opt Veil'.

Now, if we do 'ls',

you'll see we have the file that I told you, that's the file for the program

and we have the config directory, where we were and where we were on the installer.

Now, we've already installed everything, so we don't need to run the installer

and to run Veil, all we have to do is type "./" followed by the program name, which is 'Veil.py'.

I'm going to hit Enter.

And as you can see, the program is working with no issues at all.

Now, in the next lectures, I'm going to show you how to use this program to generate undetectable back doors,

that can be used to hack Windows computers.