Everywhere we go, there are Wifi hotspots. Wifi has become a part of everyday life for many of us, and access to an internet connection is sometimes as necessary as food and drink.
The good news is that most people never secure their Wifi systems properly, and in addition to that it turns out that the technology mostly in use today, WPA, can best be described as bad design meeting bad implementation. Good for us!
So let’s see what the most popular tools are for hacking Wifi networks.
Aircrack in Action
Aircrack has been around since the glory days of WEP, and the work that the folks behind the project did was in large part a driver in the change to WPA and WPA2. It connects to a secured Wifi network, captures data packets as the router rejects requests, and analyzes those captured data packets to extract the WPA password.
Naturally, Aircrack is included in the Kali Linux distro, but is also available from the project page as a Live CD. The project does to great length to explain and document how to use Aircrack to crack Wifi networks.
Head over to http://www.aircrack-ng.org/ for all details. Please note that if you haveinstalled Kali Linux you won’t need to install it as that has already been done.
From their website: “Kismet is an 802.11 layer2 wireless network detector, sniffer, and intrusion detection system. Kismet will work with any wireless card which supports raw monitoring (rfmon) mode, and (with appropriate hardware) can sniff 802.11b, 802.11a, 802.11g, and 802.11n traffic. Kismet also supports plugins which allow sniffing other media such as DECT.
Kismet identifies networks by passively collecting packets and detecting standard named networks, detecting (and given time, decloaking) hidden networks, and infering the presence of nonbeaconing networks via data traffic.”
Kismet is a bit outdated now, and the project hasn’t released anything new since 2013, but it can still be a valuable tool. They have an Android app available too.
Wireshark Home Page
Wireshark remains the industry standard network sniffing tool. Use it if you want to see directly what’s in those pesky IP packets, filter results, and a myriad of other functions. It is the Swiss Army knife of anyone interested in computer networking.
It also works by logging data packets as they pass through a network interface, and then allows the user to analyze the raw information in the packets.
A must-have if you’re serious about networking
It is pre-installed on Kali Linux, and for Debian-based distros it’s as easy as “apt-get install wireshark”.
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