How To Crack Wep Wifi Password Windows

To successfully crack WEP/WPA, The Church of WiFi has computed hash tables for General Security Guide How To Crack WEP and WPA Wireless Networks IRDP.

Download and install Commview for WiFi. How to crack WEP encryption on Windows. Using WEP for encryption is using password for your passwords.

How to Crack a Wi-Fi Network s WEP Password with BackTrack How to Crack a Wi-Fi Network s WEP Password with How to Crack a Wi-Fi Password. Adam.

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Video embedded  Note: This post demonstrates how to crack WEP passwords, an older and less often used network security protocol. If the network you want to crack is using the more.

How to Hack Wi-Fi: Cracking WEP Passwords ng in Windows. OTW. 3 Linux distro and Aircrack-ng WiFi security app to crack the password to a WEP.

You already know that if you want to lock down your Wi-Fi network, you should opt for WPA encryption because WEP is easy to crack. But did you know how easy. Take a look.

Tech site Ars Technica runs down the basics of securing your home wireless network with the most

Note: This post demonstrates how to crack WEP passwords, an older and less often used network security protocol. If the network you want to crack is using the more popular WPA encryption, see our guide to cracking a Wi-Fi network s WPA password with Reaver instead.

Your Wi-Fi network is your conveniently wireless gateway to the internet, and since you re not

Today we re going to run down, step-by-step, how to crack a Wi-Fi network with WEP security turned on. But first, a word: Knowledge is power, but power doesn t mean you should be a jerk, or do anything illegal. Knowing how to pick a lock doesn t make you a thief. Consider this post educational, or a proof-of-concept intellectual exercise.

From the use this for good, not evil files comes a fascinating instructional video on

Dozens of tutorials on how to crack WEP are already all over the internet using this method. Seriously Google it. This ain t what you d call news. But what is surprising is that someone like me, with minimal networking experience, can get this done with free software and a cheap Wi-Fi adapter. Here s how it goes.

you re a computer security and networking ninja, chances are you don t

have all the tools on hand to get this job done. Here s what you ll

A compatible wireless adapter This is

the biggest requirement. You ll need a wireless adapter that s capable

of packet injection, and chances are the one in your computer is not.

After consulting with my friendly neighborhood security expert, I

purchased an Alfa AWUS050NH USB adapter, pictured here, and it set me

back about 50 on Amazon. Update: Don t do what I did. Get the Alfa AWUS036H, not the US050NH, instead. The guy in this video below is using a 12 model he bought on Ebay and is even selling his router of choice. There are plenty of resources on getting aircrack-compatible adapters out there.A BackTrack Live CD. We already took you on a full screenshot tour of how to install and use BackTrack 3,

the Linux Live CD that lets you do all sorts of security testing and

tasks. Download yourself a copy of the CD and burn it, or load it up in

VMware to get started.A nearby WEP-enabled Wi-Fi network.

The signal should be strong and ideally people are using it, connecting

and disconnecting their devices from it. The more use it gets while you

collect the data you need to run your crack, the better your chances of

success.Patience with the command line. This

is an ten-step process that requires typing in long, arcane commands and

waiting around for your Wi-Fi card to collect data in order to crack

the password. Like the doctor said to the short person, be a little

To crack WEP, you ll need to launch Konsole, BackTrack s built-in command line. It s right there on the taskbar in the lower left corner, second button to the right. Now, the commands.

First run the following to get a list of your network interfaces:

The only one I ve got there is labeled ra0. Yours may be different; take note of the label and write it down. From here on in, substitute it in everywhere a command includes interface.

Now, run the following four commands. See the output that I got for them in the screenshot below.

macchanger --mac :: interface

If you don t get the same results from these commands as pictured here, most likely your network adapter won t work with this particular crack. If you do, you ve successfully faked a new MAC address on your network interface, :.

Now it s time to pick your network. Run:

To see a list of wireless networks around you. When you see the one you want, hit Ctrl C to stop the list. Highlight the row pertaining to the network of interest, and take note of two things: its BSSID and its channel in the column labeled CH, as pictured below. Obviously the network you want to crack should have WEP encryption in the ENC column, not WPA or anything else.

Like I said, hit Ctrl C to stop this listing. I had to do this once or twice to find the network I was looking for. Once you ve got it, highlight the BSSID and copy it to your clipboard for reuse in the upcoming commands.

Now we re going to watch what s going on with that network you chose and capture that information to a file. Run:

airodump-ng -c channel -w file name --bssid bssid interface

Where channel is your network s channel, and bssid is the BSSID you just copied to clipboard. You can use the Shift Insert key combination to paste it into the command. Enter anything descriptive for file name. I chose yoyo, which is the network s name I m cracking.

You ll get output like what s in the window in the background pictured below. Leave that one be. Open a new Konsole window in the foreground, and enter this command:

aireplay-ng -1 0 -a bssid -h :: -e essid interface

Here the ESSID is the access point s SSID name, which in my case is yoyo. What you want to get after this command is the reassuring Association successful message with that smiley face.

You re almost there. Now it s time for:

aireplay-ng -3 -b bssid -h :: interface

Here we re creating router traffic to capture more throughput faster to speed up our crack. After a few minutes, that front window will start going crazy with read/write packets. Also, I was unable to surf the web with the yoyo network on a separate computer while this was going on. Here s the part where you might have to grab yourself a cup of coffee or take a walk. Basically you want to wait until enough data has been collected to run your crack. Watch the number in the Data column you want it to go above 10,000. Pictured below it s only at 854.

Depending on the power of your network mine is inexplicably low at -32 in that screenshot, even though the yoyo AP was in the same room as my adapter, this process could take some time. Wait until that Data goes over 10k, though because the crack won t work if it doesn t. In fact, you may need more than 10k, though that seems to be a working threshold for many.

Once you ve collected enough data, it s the moment of truth. Launch a third Konsole window and run the following to crack that data you ve collected:

aircrack-ng -b bssid file name-01.cap

Here the filename should be whatever you entered above for file name. You can browse to your Home directory to see it; it s the one with. cap as the extension.

If you didn t get enough data, aircrack will fail and tell you to try again with more. If it succeeds, it will look like this:

The WEP key appears next to KEY FOUND. Drop the colons and enter it to log onto the network.

With this article I set out to prove that cracking WEP is a relatively easy process for someone determined and willing to get the hardware and software going. I still think that s true, but unlike the guy in the video below, I had several difficulties along the way. In fact, you ll notice that the last screenshot up there doesn t look like the others it s because it s not mine. Even though the AP which I was cracking was my own and in the same room as my Alfa, the power reading on the signal was always around -30, and so the data collection was very slow, and BackTrack would consistently crash before it was complete. After about half a dozen attempts and trying BackTrack on both my Mac and PC, as a live CD and a virtual machine, I still haven t captured enough data for aircrack to decrypt the key.

So while this process is easy in theory, your mileage may vary depending on your hardware, proximity to the AP point, and the way the planets are aligned. Oh yeah, and if you re on deadline Murphy s Law almost guarantees it won t work if you re on deadline.

Got any experience with the WEP cracking courtesy of BackTrack. What do you have to say about it. Give it up in the comments.