Original subtitles

And this lecture I'd like to talk about why fi bond the band of a network defines what frequency it

can use to broadcast the signal.

This means it also defines the frequency that the client or the computers need to be able to support

and use in order to be able to connect to this network.

The two main frequencies used in Wi-Fi networks are two point four and five gigahertz.

Now previously when we use aero dump ngi we were only sniffing on the 2.4 gigahertz frequency.

You can see first of all my wireless adapter is in monitor mode zero in here.

So if I just do a dump Engine 1 zero

you'll see that I can get the wireless networks around me but you might have noticed that you won't

actually see all the networks around you when you run aero dump.

Angie I'm going to Control-C this and if I go here to my normal host machine and it actually has a built

in wireless adapter so it's not as strong as my alpha adapter but if I look for networks you'll see

I actually have much more networks in here and mainly I have networks and then here and the name by

5G now the network doesn't have to necessarily and in 5G But here in Ireland if a network broadcasts

over five gigahertz the service provider adds 5G to the network name.

What we also have other networks broadcast over 5G that don't.

And in 5G.

But basically the main point that I want to talk about is I'm not able to see all the networks around

me in here and aero dump energy.

And the reason for this is because there are dump energy is only sniffing on 2.4 gigahertz frequency.

So if you do this and you dont see all the networks around you or if you're sniffing on your own network

but you don't see all the clients in your network it's possible that your router is broadcasting over

two months over 2.4 and 5 gigahertz.

And if you're not seeing the router at all if you are not seeing the network at all like it's like what's

happening here for me then the router is probably just broadcast in over five gigahertz.

Now this doesn't mean that your wireless adapter is not good.

It just literally means that this adapter is not able to see five gigahertz frequency it's just outside

of its limit outside of its reach.

The main problem with five gigahertz is that there are a lot of wireless adapters that can see it and

can communicate with it but not many of them support monitor mode and packet injection.

So you might see me and other people recommending wireless adapters like Alpha A.W. They're 0 3 6 and

hate.

This is my most favorite wireless adapter.

I use it all the time even now.

But the problem with that adapter is it doesn't pick up five gigahertz frequency so it doesn't mean

that that adapter is bad.

It just means that it can see five gigahertz frequency.

Like I said there aren't many wireless adapters that support by five gigahertz but I have an adapter

here.

It's Alpha AWOS 0 3 6 AC Hage and this adapter supports both 2.4 gigahertz and 5 gigahertz frequencies.

It's not as good as the alpha but it does the job.

Now if you want more information about wireless adapters check out the link in the resources.

I'm not going to talk a lot about what wireless adapters do.

But in this lecture I want to show you how to sniff and discover five gigahertz frequency networks and

then so that you can use all the attacks that you've learnt in my other lecture and in my previous videos

with five gigahertz networks.

So the adapter that I'm using right now supports five gigahertz But as you can see I still can't pick

up these networks just because I need to specifically tell aero dump Engy that I want you to listen

on five gigahertz frequencies and five gigahertz channels.

To do that all we have to do is just to era dump energy like we always do and then we're going to use

a new argument that we haven't seen before and this argument is called bond and we're going to tell

it that I want you to sniff on band aid.

And that's the band that supports five gigahertz frequency.

And then I'm just going to give it my why the name of my wireless adapter and monitor mode which is

mono zero.

So the command is very simple it's very similar to what we've used before and all we have to do is just

type in an era dump ngi followed by the band and the band that we want to use is a and we're following

that with our wireless interface.

So I'm going to hit enter

and as you can see you soon as we had this I'm actually just going to do Control-C now cause you can

see the results.

You can see that we got much more networks right now and we have the five gigahertz networks so we have

this network and this network that we were able to see.

We have the Jameson whiskey network as well.

And basically we're able to capture all the networks that use the five gigahertz frequency.

Now you can use this command exactly the same way that we used it before so you can add the arguments

that we were using before.

You can do B as ID and put the MAC address of your target and then you can do channel and put the channel.

You can do minus minus right and save the data that you store in a file and then run all the attacks

that I taught you before in my other courses.

So I'm not going to go all over that again because the attacks are exactly the same.

The only difference is you want to make sure that you use a wireless adapter that supports five gigahertz

frequency and if your target uses five gigahertz then make sure that you tell Aradigm energy to use

the bond instead of just run in on the 2.4 gigahertz frequency.

One more thing that I want and what I've actually said this before.

If you run a dump and against a network and you see some devices misson then there is a high chance

that these devices are connected over five gigahertz.

So again use the band a and then you should be able to see these devices.