Fern is a tool to discover weaknesses in a network. It uses aircrack-ng behind the scenes to achieve this. The best feature of Fern is its excellent GUI written in Python-Qt4. For those who don’t want to get into the cmdline options of complex tools like aircrack-ng, Fern is Godsent.
Fern Wifi Cracker Fern WiFi Cracker is a python based tool that can be used for WEP/WPA/WPA2 cracking, session hijacking, ARP request replays, and performing brute force attacks. It is able to save the key in the database on a. Fern WIFI cracker. Disclaimer: I carried out this attack using my own WIFI network, all MAC Addresses and names have been faked. This tutorial is for learning purposes only and should not be used for any illegal activities. Introduction: This is a step by step on how to use the Fern WIFI Cracker that comes installed with Kali-Linux. The “Fern Wi-Fi Cracker” tool, from hereon abbreviated as “FWC,” is a security auditing and attack software program provided in the Kali Linux distribution. FWC has the ability to crack and recover WEP, WPS, WPA, and WPA2 keys as well as other wireless attacks (even wired too).
Note that Fern is intended for testing and strengthening your own network, it is not meant to penetrate others’ networks.
Features
Fern Wifi Cracker is a GUI for Aircrack-ng, it makes cracking WEP it so damn simple. I’m on Backtrack 4 here and the only thing you will need download and installing Fern Wifi cracker is to open the terminal and use these two commands: (if you on another distro you might need to install some packets first ). #- # List WiFi adapter against the wlan0 module #- iwconfig #- # Before opening Fern, turn the wireless card into monitoring mode #- # Replace wlan-1.
- WEP Cracking with Fragmentation,Chop-Chop, Caffe-Latte, Hirte, ARP Request Replay or WPS attack
- WPA/WPA2 Cracking with Dictionary or WPS based attacks
- Automatic saving of key in database on successful crack
- Automatic Access Point Attack System
- Session Hijacking (Passive and Ethernet Modes)
- Access Point MAC Address Geo Location Tracking
- Internal MITM Engine
- Bruteforce Attacks (HTTP,HTTPS,TELNET,FTP)
- Update Support (restart required to apply update)
Installation
To install Fern Wifi Cracker on Ubuntu, first install the dependencies:
Download the Fern Open Source version. Then run:
Usage
The Fern installer adds a start menu icon. If you can’t find it, run:
Today we will cover cracking WEP Wifi Network Encryption with Fern Wifi Cracker. This Hacking tool comes prepacked in Kali Linux. This is a relatively simple process anyone can do with the proper equipment and following this tutorial.
First you will want to get a copy of Kali Linux. You can either run this as a LiveDVD, install it BareMetal, or do like I did and put it in a virtual machine.
I recommend using an Alfa Wifi Adapter to maximize your signal and range. Alfa adapters are perfect for hacking in Kali Linux because you don’t have to install any drivers and they also patch through to virtual machines, unlike your internal wifi cards.
Find a WEP Network!
If you don’t know where one is, you can use Wigle Wifi to find one:
Check out my Wigle Wifi Video: http://www.youtube.com/watch?v=mm5MoncX8zk
Set your Wifi Adapter to Monitor Mode!
Now, get Kali Linux up and running.
-Open your Shell
-Check “iwconfig” and “ifconfig” to make sure you have your wireless card showing up.
-Use “airmon-ng check” to see if processes will interfere with your monitor mode.
-Kill them using “airmon-ng check kill”
-Turn on Monitor Mode by typing “airmon-ng start wlanX”
-Close your Shell
Use Fern Wifi Cracker!
Fern Wifi Cracker Mac Address
On the System Menu:
Applications –> Kali Linux –> Wireless Attacks –> 802.11 Wireless Tools –> fern-wifi-cracker
-Now, select your interface for wifi. It will tell you that Mon is on.
-Press “Scan for Access Points”
-Now, choose WEP.
-Select the WEP network you wish to crack.
-Put a check mark on “Automate” and then click “Attack”
-Now it will step through: Associating with Access Point, Gathering Packets, Injecting ARP Packets, and Cracking Encryption…
If there is good traffic happening on the WEP Network, you will get through in 10 to 15 minutes.
If there is not a lot of traffic and your ivs is gathering real slow, you may have to leave it quite a while, or overnight.
Fern Wifi Cracker Stuck Deauthenticating
Some time after the entire bar is full, it should be able to crack the encryption and give you the connection key!
Fern Wifi Cracker Mac Download
Do a cartwheel…