Aircrack-ng: WiFi Security Auditing Tools Suite
How to use Aircrack-ng: A guide to network compromise
Aircrack-ng is a network software suite consisting of a detector, packet sniffer, WEP and WPA/WPA2-PSK cracker and analysis tool for 802.11 wireless LANs. It works with any wireless network interface controller whose driver supports raw monitoring mode and can sniff 802.11a, b and g traffic. The program runs under Linux, FreeBSD, macOS, OpenBSD, NetBSD, Windows and Solaris; the Linux version is packaged for OpenWrt and has also been ported to Android, Zaurus PDA and Maemo platforms; and a proof of concept port has been made to the iPhone.
In this article, we will show you how to download, install and use Aircrack-ng on your computer. We will also demonstrate how to crack WEP and WPA encryption keys using Aircrack-ng tools. Finally, we will introduce some alternatives to Aircrack-ng that you may want to try.
What is Aircrack-ng?
Aircrack-ng is a complete suite of tools to assess WiFi network security. It focuses on different areas of WiFi security:
Monitoring: Packet capture and export of data to text files for further processing by third party tools
Attacking: Replay attacks, deauthentication, fake access points and others via packet injection
Testing: Checking WiFi cards and driver capabilities (capture and injection)
Cracking: WEP and WPA PSK (WPA 1 and 2)
All tools are command line which allows for heavy scripting. A lot of GUIs have taken advantage of this feature. It works primarily on Linux but also Windows, macOS, FreeBSD, OpenBSD, NetBSD, as well as Solaris and even eComStation 2.
Why use Aircrack-ng?
Aircrack-ng is one of the most popular tools for WiFi security testing and hacking. It can help you to:
Analyze the wireless traffic in your network and identify potential vulnerabilities
Test the strength of your encryption keys and passwords against brute force attacks
Recover lost or forgotten keys from captured packets
Perform various attacks on WiFi networks, such as deauthentication, fake access points, man-in-the-middle, How to download Aircrack-ng?
Aircrack-ng can be downloaded from its official website: .
The binaries are available for different platforms, such as Windows, Linux, macOS, FreeBSD, OpenBSD, NetBSD, Solaris, and Android. You can choose the appropriate version for your system and download it from the website or the GitHub releases page: .
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How to install Aircrack-ng?
The installation process of Aircrack-ng depends on the platform and the method you choose. Here are some general steps for installing Aircrack-ng from source or binary:
Installing from source
If you want to install Aircrack-ng from source, you need to have some dependencies installed on your system. These include:
libssl-dev or openssl-devel
libnl-3-dev and libnl-genl-3-dev (only for Linux)
libpcap-dev or libpcap (optional)
gcc or clang
You can install these dependencies using your package manager or manually. For example, on Debian-based systems, you can use the following command:
sudo apt-get install libssl-dev libnl-3-dev libnl-genl-3-dev pkg-config libsqlite3-dev libpcre3-dev libpcap-dev ethtool shtool autoconf automake libtool make gcc
Once you have the dependencies installed, you can download the source code from the website or GitHub and extract it to a folder. Then, you can run the following commands in the folder to compile and install Aircrack-ng:
autoreconf -i ./configure --with-experimental make sudo make install
The --with-experimental option enables some experimental features that are not enabled by default. You can omit it if you don't need them.
Installing from binary
If you want to install Aircrack-ng from binary, you can download the appropriate package for your system from the website or GitHub and follow the instructions provided. For example, on Windows, you can download the zip file and extract it to a folder. Then, you can run the aircrack-ng.exe file to launch Aircrack-ng.
How to use Aircrack-ng?
Aircrack-ng is a suite of tools that can perform various tasks on WiFi networks. The main tools are:
airmon-ng: This tool enables and disables monitor mode on wireless interfaces.
airodump-ng: This tool captures packets from a wireless network and displays information about them.
aireplay-ng: This tool injects packets into a wireless network to generate traffic or perform attacks.
aircrack-ng: This tool cracks WEP and WPA keys using captured packets.
airdecap-ng: This tool decrypts WEP or WPA encrypted packets.
airbase-ng: This tool creates fake access points to attract clients.
airserv-ng: This tool allows remote access to wireless cards.
easside-ng: This tool communicates with an access point without knowing the WEP key.
wesside-ng: This tool automatically cracks a WEP network.
besside-ng: This tool automatically cracks WPA networks.
tkiptun-ng: This tool injects packets into a WPA TKIP network with QoS.
To use these tools, you need to have a wireless card that supports monitor mode and packet injection. You can check if your card supports these features by using the airmon-ng tool. For example, you can run the following command to list the available wireless interfaces and their drivers:
The output will show something like this:
PHY Interface Driver Chipset phy0 wlan0 ath9k Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter (rev 01)
In this case, the interface wlan0 uses the driver ath9k, which is compatible with Aircrack-ng. You can also check the compatibility of your card on the Aircrack-ng website: .
To use Aircrack-ng tools, you need to put your wireless card into monitor mode. This allows you to capture all the packets in the air, regardless of the network they belong to. You can use the airmon-ng tool to enable or disable monitor mode on your interface. For example, you can run the following command to enable monitor mode on wlan0:
sudo airmon-ng start wlan0
The output will show something like this:
PHY Interface Driver Chipset phy0 wlan0 ath9k Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter (rev 01) (monitor mode enabled on mon0)
This means that a new interface called mon0 has been created, which is in monitor mode. You can use this interface to capture and inject packets with Aircrack-ng tools. To disable monitor mode, you can run the following command:
sudo airmon-ng stop mon0
The output will show something like this:
PHY Interface Driver Chipset phy0 wlan0 ath9k Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter (rev 01) (monitor mode disabled)
This means that the interface mon0 has been removed, and the interface wlan0 is back to normal mode.
How to crack WEP with Aircrack-ng?
WEP (Wired Equivalent Privacy) is an old and weak encryption standard for WiFi networks. It can be easily cracked by capturing enough packets and using statistical analysis to recover the key. Aircrack-ng can crack WEP keys using various methods, such as PTW, FMS, KoreK, and brute force. Here is an example of how to crack a WEP key using Aircrack-ng:
First, you need to find a WEP-encrypted network that you want to crack. You can use the airodump-ng tool to scan for nearby WiFi networks and displ