Tuesday, June 13, 2017

Kali Linux Tutorial Hack Your Own Network and Beef Up Its Security

Kali Linux Tutorial Hack Your Own Network and Beef Up Its Security


Hack Your Own Network - Beef Up Its Security- picateshackz.com

Kali Linux is packed with a ton of software for testing security holes in your network. There are far too many to list here, but were so enamored with it that we decided to pick a few of our favorite tools and show how they work: Aircrack, Airbase, and ARPspoof. Well show you how to crack a Wi-Fi password with brute force techniques, create a fake router to trick machines into logging into it, and perform a man in the middle attack to eavesdrop on network communications. Remember: use these powers for good, not for evil. Knowing how to do these things can get you out of a jam or help you learn to secure your own network, but doing them to someone else is not something we recommend.
Read my previous article to know more about Kali Linux: An Introduction To Hacker’s OS: Kali Linux And Setup Tutorial.


Crack a WPA Wi-Fi Password with Aircrack



Kali Linux comes with a whole suite of apps for cracking Wi-Fi networks, including Aircrack and Reaver—both of which weve mentioned before for cracking WEP and WPA passwords, respectively.

Recommend to read: How To Hack Wi-Fi WPA/WPA2 With Kali Linux

However, WEP passwords arent that popular anymore (because theyre so easy to crack), and Reaver only works if a network has WPS enabled. So today, were going take another look at Aircrack and use it to to brute force our way into a WPA network (with the help of a password list).

Step One: Configure Your Wireless Card


First things first: disconnect from all wireless networks. Then open up terminal. In order to use Aircrack, youll need a wireless card that supports injections. Type this into the Terminal to make sure your card supports it:
airmon-ng
This lists all the wireless cards that support this crack. If you card doesnt support injections, it wont show up here. Yours is likely listed under interface as wlan0, but it may depend on your machine.
Next, type in:
airmon-ng start wlan0
Replace wlan0 with your cards interface address. You should get a message back saying that monitor mode was enabled.

Step Two: Monitor Your Network


Next, youre going to get a list of all the networks in your area and monitor yours.
Type in:
airodump-ng mon0
Youll see all the networks in your area. Locate your network from the list, and copy the BSSID, while making a note of the channel its on. Tap Ctrl+C to stop the process.
Next, type this in, replacing the information in parentheses with the information you gathered above:
airodump-ng -c (channel) --bssid (bssid) -w /root/Desktop/ (monitor interface)
It should read something like this:
airodump-ng -c 6 --bssid 04:1E:64:98:96:AB -w /root/Desktop/ mon0
Now, youll be monitoring your network. You should see four files pop up on the desktop. Dont worry about those now; youll need one of them later. The next step is a bit of a waiting game, as youll be sitting around waiting for a device to connect to a network. In this case, just open up a device you own and connect to your Wi-Fi. You should see it pop up as a new station. Make a note of the station number, because youll need that in the next step.

Step Three: Capture a Handshake


Now, youre going to force a reconnect so you can capture the handshake between the computer and the router. Leave Airodump running and open up a new tab in Terminal. Then type in:
aireplay-ng -0 2 -a (router bssid) -c (client station number) mon0
It should look something like:
aireplay-ng -0 2 -a 04:1E:64:98:96:AB -c 54:4E:85:46:78:EA mon0
Youll now see Aireplay send packets to your computer to force a reconnect. Hop back over to the Airodump tab and youll see a new number listed after WPA Handshake. If thats there, youve successfully grabbed the handshake and you can start cracking the password.

Step Four: Crack the Password


You now have the routers password in encrypted form, but you still need to actually figure out what it is. To do this, youll use a password list to try and brute force your way into the network. You can find these lists online, but Kali Linux includes a few small lists to get you started in the /usr/share/wordlists directory, so well just use one of those. To start cracking the password type this in:
aircrack-ng -a2 -b (router bssid) -w (path to wordlist) /Root/Desktop/*.cap
So, continuing with our above example and using one of the built-in wordlists, it should read something like:
aircrack-ng -a2 -b 04:1E:64:98:96:AB -w /usr/share/wordlists/fern-wifi/common.txt /Root/Desktop/*.cap
Now, Aircrack will try all of those passwords to see if one fits. If it does, youll get a message saying the key was found with the password. If not, give another one of the password lists a try until you find one that works. The bigger the password list, the longer this process will take, but the greater chance you have of succeeding.

How to Use This Information to Stay Safe

So, you just brute forced your way into your own network. Depending on how good your password is, it either took you five minutes or five hours. If your password is something simple, like "password123", then chances are one of the smaller wordlists was able to crack it pretty quickly. If it was more complicated, it probably took a long time or never surfaced the password at all (if so: good for you!).
The best protection here is a good, strong password on your router. The longer, weirder, and more complex it is, the better. Likewise, make sure youre using the WPA2 security protocol and you dont have WPS enabled.

Create a Fake Network with Airbase



Next up, lets take a look at how you can spoof a network address to trick people into signing into the wrong network so you can watch what theyre doing. Hackers might do this so you sign into the fake network thinking its your real one, then performing a man in the middle attack (more on that in the next section) to gather information about you from your traffic. This is amazingly easy to do with a tool in Kali Linux called Airbase.
Essentially, youll turn your Wi-Fi adapter on Kali Linux into an access point with the same name as another network. In order to do this, youll follow the same line of research as you did above, but the endings a bit different.

Step One: Configure Your Wireless Card

Just like last time, you need to set up your wireless card to monitor traffic. Open up Terminal and type:
airmon-ng
This lists all the wireless cards that support this crack. Yours is likely listed under interface as wlan0.
Next, type in:
airmon-ng start wlan0
Now youre in monitor mode. Its time to find the network you want to spoof.


Step Two: Find a Wi-Fi Network to Spoof


In order to spoof a router, youll need some information about it. So, type in:
airodump-ng mon0