Nmap (“Network Mapper”) is a free and open source utility for network discovery and security auditing. Many systems and network administrators also find it useful for tasks such as network inventory, managing service upgrade schedules, and monitoring host or service uptime. Nmap uses raw IP packets in novel ways to determine what hosts are available on the network, what services (application name and version) those hosts are offering, what operating systems (and OS versions) they are running, what type of packet filters/firewalls are in use, and dozens of other characteristics. It was designed to rapidly scan large networks, but works fine against single hosts. Nmap runs on all major computer operating systems, and official binary packages are available for Linux, Windows, and Mac OS X.
Fern WiFi Wireless Cracker. Fern Wifi Cracker is a Wireless attack software and security auditing tool that is written using the Python Qt GUI library and Python Programming Language. This tool can recover and crack WPA/WEP/WPS keys and can run other network-based attacked on ethernet or wireless. The latest version of the application can be downloaded for Mac OS X 10.7 or later. Wi-Fi Crack for Mac lies within Internet & Network Tools, more precisely Network tools. The actual developer of this free Mac application is ColemanCDA. This Mac download was scanned by our antivirus and was rated as safe.
I’m going to show how to scan your own network using Nmap with these simple steps. Take note that Nmap is already installed in Kali all you need is type the following to list all commands.
- nmap -h
Let’s scan first with -v verbose mode to gather info about the network where you can clearly see the open ports and mac address of the router. Here you can insert your target’s IP address or webpage like nmap -v 192.168.1.1 or nmap -v example.com
- nmap -v 192.168.1.1
The second scan enable OS detection, version detection and script scanning, here you can see lot of information about the network, OS details, traceroute, even the router’s admin page was included.
- nmap -A 192.168.1.1
The scan to see the open ports of the router and there’s my router’s open ports – 4 in all.
- nmap -open 192.168.1.1
And to see the connected devices in the network type
- nmap -sP 192.168.1.1/24
Now you saw how simple Nmap commands can find important information on your target network. All you have to do is try all the commands against your network and not your neighborhood. Happy Hacking!
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!
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…
Fern Wifi Cracker Mac Os X 10.7
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 Pro
Some time after the entire bar is full, it should be able to crack the encryption and give you the connection key!
Do a cartwheel…