AirmonNG

Airmon-NG is simple and easy to use tool and is a part of Aircrack-NG suite of products. Aircrack-NG is a set of tools for auditing wireless networks. These tools automate in between steps involved in WEP cracking, from setting the interface in monitor mode to sniffing packets, re-injecting packets, examining these packets against different attack vectors, cracking the WEP key and finally decrypting the WEP-encrypted packets. Airmon-NG automates the first stop i.e. setting the interface into monitor mode.

The enabling step for WEP cracking is the ability to sniff wireless packets and to inject wireless packets. By sniffing wireless packets one can discovery wireless devices like APs, Clients and their associations and by injecting wireless packets the whole WEP cracking process can be accelerated by orders of magnitude. For both of these operations, you need to put your interface in monitor mode. There are elaborate commands provided by every driver for setting the interface in monitor mode. Airmon NG automates the process of putting interface into monitor mode.

This video will discuss how to know which wireless card (chipset) is present on your machine, and then how to configure the card to monitor mode with the help of airmon-NG.

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Setting the card into monitor mode is the first step in cracking the WEP key. Once interface is set, with the help of Airodump-NG one can findout the Access Points and Clients present in the surrounding and their details like security settings, SSID, channel information etc. which enables Aireplay-NG type of tools to start the process.

In short airmon-ng is a simple and easy to use tool to put any wireless interface into monitor mode. This way you can sniff the wireless environment and can look for APs Clients their properties security settings also one can do raw packet injection only in monitor mode.

Links

1. Airmon-ng Download

2. Airmon-ng Home Page

Amit Vartak, 27 is working in wired and wireless security fields since last 3-4 years. His current area of interest includes IEEE 802.11 (Wi-Fi) suite of protocols, vulnerabilities in these protocols and countermeasure for those vulnerabilities. Working on cutting edge tools and technology always keeps him busy. He has contributed from concept level to final prototyping for the presentations in Defcon 2007 (The Emperor Has No Cloak - WEP Cloaking Exposed) and Toorcon 2007 (Caffe latte attack). He holds 2 patents with USPTO (current status: Patent Pending) and a few papers in IEEE journals on wireless protocol vulnerabilities. Prior to this, he was working on MEMS (Micro Electro Mechanical Systems) and has published a few papers in SPIE and ICMAT. (Yeah… kindda orthogonal fields… but technology really doesn’t limit the talent :) He did his masters in Electrical Engineering from one of the premier institutes in India, Indian Institute of Technology, Bombay (IIT-Bombay) and his under graduation, from University of Mumbai in Electronics and Telecommunication Engineering. He is currently working with AirTight Networks Inc. as a team lead in technology group since last 3 years.You can get in touch with him at amitcv[at]gmail[dot]com