How to DOS/Deauthentication attack on any WiFi Network


As we know that WiFi-Hacking is one of the most popular stuff. Lot’s of people doesn’t have an exact knowledge about the basics of it or we can say the background actions, that steps follow by them.

In this post, we are going to learn how to DOS [denial of services] or we can simply say a deauthentication attack on any WiFi network.

What is deauthentication attack?

In deauthentication attack, an attacker sends fake de-authentications packets to an AP [Access Point] and try to disconnect all the clients or a specific client of that specific network.
Simply that the internet service or WiFi service provided by that Access Point is not available to their clients, So simply we can also DOS [denial of services]. Because the AP unable to provide it’s services to the clients into the network.

Why deauthentication attack perform?

Behind any step there is an advance step or thinking, here also a simple question that why deauthentication attack is perform by an attacker. Is really hacker want that people don’t used them WiFi network? answer is NO.
The main purpose behind this attack is that to capture the three-way handshakes. i.e. When a client or clients try to reconnect to an AP [Access Point], at the same time attacker done sniffing task [you can check into the previous post of WiFi hacking series] and capture the handshake.

Perform Deauthentication attack!

First step that put your wifi adapter into monitor mode and scan for the targets, i.e. wifi networks around.

  • To de-authenticate all clients in a specific network.
aireplay-ng --deauth [number of packets] -a [Access Point] [Interface] 
For Ex. aireplay-ng --deauth 1000 -a 11:22:33:44:55:66 mon0
  • To de-authenticate a specific client in a specific network.
aireplay-ng --deauth [number of packets] -a [Access Point] -c [target] [Interface] 
For Ex. aireplay-ng --deauth 1000 -a 11:22:33:44:55:66 -c 11:AA:22:33:44:BB mon0

After capture handshake go with aircrack-ng and try to decrypt the key of that particular network, There are various methods of wifi hacking based on encryption or scenario that we will see in next post.


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