TUTORIAL - Cracking WEP (WinXP, intel pro 3945ABG) easy+pics

[dieselpower]

As this is a very popular card in new laptops and almost all people with this card are having dificulties with it to crack a wep key heres a tutorial.

1. DRIVER
--------------
First you will have to downgrade the drivers of your network car, assuming you have the latest driver. The driver version we are downgrading to is 10.5.1.72 or 10.5.1.75. If someone has a server i can send them..

When you have the drivers go to your wireless connections, select your card > configure > driver > update driver > 'install them from a specific location' > 'dont search..' > have disk' and then select the driver.

2. OMNIPEEK
----------------
Install Omnipeek Personel (http://products.wildpackets.com/?v=ybwh9mhz4e440035&s=6)
This program includes wildpacket drivers for your card enabling it to go into 'monitor mode'. Note: When the program is running you will not be able to get on the internet, but this is restored when you close it..

Once installed, open the program and click on 'new capture'




Next hit '802.11' and select where you want to capture from (channel, BSSID=MAC-adress, ESSID= network name, or scan channels) and click OK.




Now hit 'Capture' and it should start capturing packets..




When you think you have enough packets click 'stop capture'.
Goto File>Save all packets and save it as a .dmp file. Close Omnipeek.




3. WINAIRCRACK
----------------
Okay so now we should have a .dmp file with the packets.
- Open WinAircrack
- Click 'select capture file' and load the .dmp file you captured before.

- On the general tab select the encryption type (i only know how it works with wep..)
- On the WEP tab you can choose the key size (not necessairy)
- On the advanced tab you can enable the use of dual processor (not necessairy)
- Click 'Aircrack the key'
- A command box will show up and ask you for the target network.

Choose the right one and voila it will begin cracking.

The end

[Zero_Chaos]

Thank you very much for the tutorial! Unfourtunately since WinAircrack is based on aircrack 2.3 it is very very old.  I'd suggest using aircrack-ng 0.9 and the Aircrack-ng GUI (if you must). Admittedly, the GUI you have is very pretty, but the backend if very old so it's time to update.

-Zero_Chaos

[dieselpower]

so isn't there coming a new version of winaircrack?

[me]

Thanks for the tutorial... but I have a couple remarks though
It is true that a lot of people with ipw3945abg have problems cracking WEP. Why is this? like you said, because people can't find the driver 10.5.1.72 or 10.5.1.75. It would help if a document like a 'tutorial' points to the right location so that not everybody needs to go look again. I seem to remember though that with version 11.x I also could capture with wildpackets driver.
Then you talk about the installation of wildpackets.... which is pretty easy, i don't think anybody had a problem with that one, at least i didn't.

Now, when people finally have their data and are ready to crack....... you pull out an old crappy program like winaircrack, again without saying where people can get this???

I thought a tutorial gives people a feeling they learned something, not that they have to start googling all the extra questions that they have.

[dieselpower]

It is true that a lot of people with ipw3945abg have problems cracking WEP. Why is this?

Have no idea.. It works with the drivers i provided. If you can get it to work with ur own drivers good for you. It doesnt change nothing probably.
I also stated that i have the drivers and i am offering to upload them to a server or will even send them to you if you ask, but i havent got a reply siince. So dont blame me.

Now, when people finally have their data and are ready to crack....... you pull out an old crappy program like winaircrack, again without saying where people can get this???

Dude you can use whatever program you want. I personally find winaircrack very easy to use with the gui and it does the job.
A simple googlesearch for winaircrack and the first result i get is where to get it. If you want to spare 5 seconds of your life here it is: http://rapidshare.com/files/19314123/WinAircrackPack.zip

Try to come up with descent arguements please.

If there is a thing i didnt do is explain how to filter a network with omni.
Heres how:

-click start monitor in omni
-rightclick on the network u want
-click make filter
-give the filter a name
-do what i explained in the tutotial, but before u click capture
first go to 'filters' in the list
-put a cross next to the filter u made
This will make you capture only the data from a specific network (no more huge lists of networks with only one iv).

[blurp]

then can you please give a link with the working drivers ?

[BAY]

hello,

this tutorial is base on WInxp OS, and about vista OS is it the same use?
Where can i found this drive 10.5.1.75

thanks

[Tex-Twil]

this tutorial is base on WInxp OS, and about vista OS is it the same use?

http://www.wildpackets.com/support/omni/omnipeek_personal/faq#28:

Q: My new Vista laptop has a Centrino 3945 wireless adapter, but I cannot capture wireless packets. Why?

A: Wireless capture for the Centrino 3945 adapter is not yet supported with Vista. This will be supported in a future version of OmniPeek. For now, you will need to use a wireless adapter that utilizes our Atheros driver instead.

cheers

[VoTaN]

Hi guys.

Hoping to be useful.

I found the drivers:
http://www.opendrivers.com/driver/236180/intel-pro-wireless-3945abg-network-driver-10.5.1.72-windows-2000-xp-xp-x64-free-download.html
http://www.opendrivers.com/driver/236666/intel-pro-wireless-3945abg-network-driver-10.5.1.75-windows-2000-xp-xp-x64-free-download.html

If you try it any feedback is apreciated. Let me know..


Cheers

[Mister_X]

VoTaN, these drivers come from intel and they DO NOT support monitor mode. Special drivers are required.

[VoTaN]

VoTaN, these drivers come from intel and they DO NOT support monitor mode. Special drivers are required.

I'm really sorry for the misunderstanding. I'm really n00b at aircracking.
BTW I contacted dieselpower in order to host the right drivers on my server.

Just waiting for his response,

cheers

[dieselpower]

I e-mailed votan the drivers. He will upload them to his server.

[cosypanther]

Where can I find the drivers for Windows XP 32bit (x86)?

[cosypanther]

  I found it myself :

http://www.treiberupdate.de/treiber-download/z-dltreiber/download_treiber_999.php?load=161804&extern=0&vendor=Intel&sys=WindowsXP

[VoTaN]

I found it myself :

http://....treiberupdate.de/treiber-download/z-dltreiber/download_treiber_999.php?load=161804&extern=0&vendor=Intel&sys=WindowsXP

Nope.. that's exactly the same driver from Intel that I found in my previous post (the second link in my first reply)

I don't know if it works anyway, DieselPower sent HIS DRIVERS (supporting monitor mode) and....
..You can download it here.


ICU