Ethical Hacking Tutorial part 3(Wireless Hacking)
Learn About Wireless Hacking
A wireless network is a set of two or more devices connected with each other via radio waves within a limited space range. The devices in a wireless network have the freedom to be in motion, but be in connection with the network and share data with other devices in the network. One of the most crucial point that they are so cheap is that their installation cost is very cheap and fast than the wire networks. wireless networks are widely used and it is quite easy to set them up. They use IEEE 802.11 standards. A wireless router is the most important device in a wireless network that connects the users with the internet.
In a wireless network, we have Access Points which are extensions of wireless ranges that behave as logical switches. Although wireless networks offer great flexibility, they have their security problems. A hacker can sniff the network packets without having to be in the same building where the network is located . As a wireless networks communicate through radio waves, a hacker can easily sniff the network from a nearby location. Most attackers use network sniffing to find the SSID and hack a wireless network. With our wireless cards are converted in sniffing modes they are called monitor mode. Some of the processes commonly used for wireless hacking are described below:
Kismet is a powerful too; for wireless sniffing that is found in Kali distribution. It can also be downloaded from its official webpage – https://kismetwireless.net/index.shtml
Lets see how it works. First of all, open a terminal and type kismet. Start the kismet Server and click Yes, as shown in the following screenshot.
As shown here, click the Start button.
Now, Kismet will start to capture data. The following screenshot shows how it would appear-
NetStumber is another tool for wireless hacking is primarily meant for Windows systems. It can be downloaded from http://www.stumber.net/
It is quite easy to use NetStumber on your system. You just have to click the Scanning button and wait for the result, as shown in the following screenshot.
It should display a screenshot as follows-
WEPcrack is a popular tool to crack WEP (Wired Equivalent Privacy) passwords. It can be downloaded from- https://sourceforge.net/projects/wepcrack/
Aircrack-ng is another popular tool for cracking WEP passwords. It can be found in the Kali distribution of Linux. The following screenshot shows how we have sniffed a wireless network and collected packets and created a file RHAWEP-01. Then we can run it with aircrack-ng to decrypt the cypher.