How To Hack Into A Computer On LAN.pdf

NetBIOS Hacking

-What is it?-

NetBIOS Hacking is the art of hacking into someone else’s computer through your

computer. NetBIOS stands for “Network Basic Input Output System.” It is a way for

a LAN or WAN to share folders, files, drives, and printers.

-How can this be of use to me?-

Most people don’t even know, but when they’re on a LAN or WAN they could possibly

have their entire hard drive shared and not even know. So if we can find a way into

the network, their computer is at our disposal.

-What do I need?-

Windows OS

Cain and Abel (oxid.it - Home)

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-[Step 1, Finding the target.]-

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So first off we need to find a computer or the computer to hack into. So if your

plugged in to the LAN, or connected to the WAN, you can begin. Open up Cain and

Abel. This program has a built in sniffer feature. A sniffer looks for all IP addresses

in the local subnet. Once you have opened up the program click on the sniffer tab,

click the Start/Stop sniffer, and then click the blue cross

Another window will pop up, make sure “All host in my subnet” is selected, and then

click ok.

It should begin to scan.

Then IP’s, computer names, and mac addresses will show up.

Now remember the IP address of the computer you are going to be breaking into.

If you can’t tell whether the IP address is a computer, router, modem, etc, that’s ok.

During the next step we will begin our trial and error.

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-[Part 2, Trial and Error]-

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Now, we don’t know if we have our designated target, or if we have a computer or

printer, or whatever else is on the LAN or WAN.

If you did get the IP of the target though, I still recommend reading through this

section, for it could be helpful later on.

Click on the start menu and go to run, type in cmd, and click ok.

This should bring up the command prompt.

From here we will do most of the hacking.

Now I will be referring to certain commands that need to be inputted into the

command prompt.

I will put these commands in quotes, but do not put the quotes in the code when you

type it into the prompt.

I am only doing this to avoid confusion.

Let’s get back to the hacking.

Type in “ping (IP address of the target).” For example in this tutorial, “ping

192.168.1.103.”

This will tell us if the target is online.

If it worked, it will look something like this (note, I have colored out private

information):

IF it didn’t work, meaning that the target is not online, it will look something like this:

If the target is not online, either switch to a different target, or try another time.

If the target is online, then we can proceed.

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-[Part 3, Gathering the Information.]-

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Now, input this command “nbtstat –a (IP address of target).” An example would be

“nbtstat –a 192.168.1.103.”

This will show us if there is file sharing enabled, and if there is, it will give us the:

currently logged on user, workgroup, and computer name.

Ok, you’re probably wondering, “What does all this mean to me?” Well, this is actually

very important, without this, the hack would not work. So, let me break it down from

the top to bottom. I will just give the first line of information, and then explain the

paragraph that follows it.

The information right below the original command says: “Local Area Connection,” this

information tells us about our connection through the LAN, and in my case, I am not

connected through LAN, so the host is not found, and there is no IP.

The information right below the “Local Area Connection,” is “Wireless Network

Connection 2:” It gives us information about the connection to the target through

WAN. In my case I am connected through the WAN, so it was able to find the Node

IpAddress. The Node IpAddress is the local area IP of the computer you are going to

break into.

The NetBIOS Remote Machine Name Table, give us the workgroup of our computer,

tells us if it is shared, and gives us the computer name. Sometimes it will even give us

the currently logged on user, but in my case, it didn’t. BATGIRL is the name of the

computer I am trying to connect to. If you look to the right you should see a <20>.

This means that file sharing is enabled on BATGIRL. If there was not a <20> to the

right of the Name, then you have reached a dead end and need to go find another IP,

or quit for now. Below BATGIRL is the computers workgroup, SUPERHEROES. If you

are confused about which one is the workgroup, and the computer, look under the

Type category to the right of the < > for every Name. If it says UNIQUE, it is one

system, such as a printer or computer. If it is GROUP, then it is the workgroup

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-[Step 4, Breaking In]-

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Finally it’s time.

By now we know: that our target is online, our target has file sharing, and our target’s

computer name.

So it’s time to break in.

We will now locate the shared drives, folders, files, or printers. Type in “net view \\

(IP Address of Target)”

An example for this tutorial would be: “net view \\192.168.1.103”

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