How to Crack a Wi-Fi Network’s WEP Password with BackTrack [Wi-Fi]
My Clippings July 1st, 2009 by System
Automatically pulled from My Clippings on NewsGator Online
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.
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.
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.
What You’ll Need
Unless 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 need:
- 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. The guy in this video below is using a $12 model he bought on Ebay (and is even selling his router of choice). You won’t go wrong with the Alfa, but do your research. There are plenty of resources on getting aircrack-compatible adapters out there.
- A BackTrack 3 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. (I tried the BackTrack 4 pre-release, and it didn’t work as well as BT3. Do yourself a favor and stick with BackTrack 3 for now.)
- 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.
Anti-Abuse Bus Stop Ad Only Batters Women When Nobody’s Looking [Advertising]
My Clippings June 26th, 2009 by System
Automatically pulled from My Clippings on NewsGator Online
Amnesty International has installed a new anti-domestic-abuse ad fixture in Hamburg, Germany which is equal parts clever and shocking: when you look at the photo, it’s a smiling couple; when you look away, it’s a dude punchin’ a lady.
The billboard works by scanning its proximity with an eye-tracking camera, which triggers an image switch on the display panel when it senses someone looking at it. The change only occurs after a brief delay, so that observers understand what’s going on, and get the message.
It’s a fantastically effective concept, and a brilliant use of technology. Kind of sad, then, that it’s probably award bait, and doomed to be a lone installation, according to Copyranter. [Copyranter via Dvice]
How-To: Proximity Automation
Uncategorized June 11th, 2009 by Shai Perednik
Would you like to be able to use the magic of Bluetooth to automatically pause iTunes, set your away message in Adium, and lock the screen simply by standing up and walking away from your desk? Of course you would — it’s future-tastic (jetpacks not included)! Let’s take a look at how to pull this off.
What You’ll Need
First you’ll need a copy of Proximity, a handy (and free) little application which monitors your Bluetooth-enabled device and fires off AppleScripts when it leaves and enters connection range. As an added touch, we’ll also use a copy of DeskShade to lock and unlock the computer with style, leaving a nice away message displayed on the screen and opening a “Hacker Log” to display what activity took place while you were away.
DeskShade actually does a lot more than just allow AppleScript to lock and unlock your screen. I won’t go into a full review of it here, but essentially, it will also help keep your desktop clean, your wallpaper fresh, and your mind uncluttered. If, however, you want to forgo the use of DeskShade, you can instead lock and unlock the computer by having AppleScript launch your screensaver and adjust the security settings required for waking it up. AppleScript files for both approaches can be downloaded here (8kb, ZIP).
Getting Set Up
Install Proximity, and from within the preferences pane select your Bluetooth device. I used my iPhone, but any “discoverable” device should work. In the AppleScript section link to OutofRange.scpt for when the device moves out of range and InRange.scpt for when it moves back in range. Make sure that monitoring is enabled and set a frequency for proximity checks — I used 60 seconds. If you decided not to go the DeskShade route, then just swap in the second set of scripts for that step above and skip ahead to the testing.
Install DeskShade and on the DeskLock tab set a password, enable AppleScript to unlock, set the Hacker Log to open after unlocking and set the away message to something appropriate. I used the same “More than 30ft away from my computer” message that is set in Adium via the out-of-range script.
