-: In this lecture, we're gonna 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 will basically allow us to hack it and do anything
that we want on that computer.
There's 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 gonna do this using a tool
called Veil-Framework.
Now, first of all,
we're gonna have to install this framework.
There is an installation script in the resources
of this lecture that you can use
to automatically install it and configure it properly.
I already have it downloaded right here in my downloads.
As you can see right here, it's called install Veil.
So I'm simply gonna open up my terminal.
And I'm gonna navigate to my downloads using the CD command.
So CD downloads.
And if we do LS,
we can see this file right here at the installation script.
By the way, feel free to double click it
and see the contents of it.
It simply has a number of commands to install dependencies,
download Veil, and configure it properly.
So to run this script, first of all,
we have to change its permissions to an executable.
And to do that, we're gonna use the chmod command.
We're gonna do plus X to add executable permissions.
And the files that we need to add
executable permissions to is this file right here.
This file right here, it's called installed Veil.
So we're basically using the chmod command
to change permissions.
We're adding an executable permissions
to this specific file.
We're gonna hit enter,
and the commands run with no errors.
That means the command got executed properly.
So if we do LS again to list files,
you'll see the file listed in green.
meaning it is an executable.
And to run an executable in Linux,
we always do dot forward slash
followed by the executable name.
So I'm just gonna type I N tab to auto-complete.
And we have the name right here.
So we're simply running this file as an executable
by adding dot forward slash to it.
And I'm gonna hit enter to run it.
I'm gonna maximize this,
and you wanna give this it's time.
You wanna make sure that you have internet access,
'cause as I said, it's gonna download and install it.
And Veil is a huge framework.
That's why I actually didn't include it in the custom image
because it's really, really big.
So you want to give it this time,
make sure you have stable internet connection.
So it's able to download and install everything.
And if you face any issues,
just take a screenshot of the error,
post it in the Q and A or in the forums.
And we will be happy to help you.
Now I'm gonna pause this video
and we'll resume once the installation is complete.
Now you might get this message, the installation as can you
if it should automatically restart services
during the upgrade and during the install.
We're gonna navigate with the left arrow.
Hover over the yes, and hit the enter key on the keyboard
to say yes and continue the installation.
Now during the installation,
you might actually get messages on the terminal
telling you to go through a prompt
and click next, next, next.
Ignore them.
You don't need to do anything.
This script will do everything for you.
So you literally need to just wait for it, to do everything.
And that's about it.
Perfect, now the installation is complete.
I'm just gonna clear the screen.
And if we just type the tool name V-E-I-L, hit enter,
you'll see that the program will run
with no issues at all.
Now, in the next lectures,
I'm gonna show you how to use this program
to generate undetectable backdoors
that can be used to hack Windows computers.