Backtrack5R3

Backtrack is one of the most popular Linux distributions used for Penetration testing and Security Auditing. The Backtrack development team is sponsored by Offensive Security. On 13th August 2012, Backtrack 5 R3 was released. This included the addition of about 60 new tools, most of which were released during the Defcon and Blackhat conference held in Las Vegas in July 2012. In this series of articles, we will look at most of the new tools that were introduced with Backtrack 5 R3 and look at their usage. Some of the notable changes included tools for mobile penetration testing, GUI tools for Wi-fi cracking and a whole new category of tools called Physical Exploitation.

Getting Backtrack 5 R3

There are two ways to get up and running quickly with Backtrack 5 R3. If you are already running Backtrack 5 R2, you can upgrade to Backtrack 5 R3 by following the steps described on this page. Or you can do a fresh install of Backtrack 5 R3 from the downloads section on Backtrack’s official website.

A list of the new tools released with Backtrack 5 R3 according to Backtrack’s official website are libcrafter, blueranger, dbd, inundator, intersect, mercury, cutycapt, trixd00r, artemisa, rifiuti2, netgear-telnetenable, jboss-autopwn, deblaze, sakis3g, voiphoney, apache-users, phrasendrescher, kautilya, manglefizz, rainbowcrack, rainbowcrack-mt, lynis-audit, spooftooph, wifihoney, twofi, truecrack, uberharvest, acccheck, statsprocessor, iphoneanalyzer, jad, javasnoop, mitmproxy, ewizard, multimac, netsniff-ng, smbexec, websploit, dnmap, johnny, unix-privesc-check, sslcaudit, dhcpig, intercepter-ng, u3-pwn, binwalk, laudanum, wifite, tnscmd10g bluepot, dotdotpwn, subterfuge, jigsaw, urlcrazy, creddump, android-sdk, apktool, ded, dex2jar, droidbox, smali, termineter, bbqsql, htexploit, smartphone-pentest-framework, fern-wifi-cracker, powersploit, and webhandler. We will be discussing most of these tools in this series.

Fern-Wifi-Cracker

Fern Wi-fi cracker is a program written in python that provides a GUI for cracking wireless networks. Normally, you need to run aireplay-ng, airodump-ng and aircrack-ng separately in order to crack wireless networks, but Fern-Wifi-cracker makes this job very simple for us by acting as a facade over these tools and hiding all the intricate details from us. It also comes with a bunch of tools that helps you perform attacks like Session Hijacking, locate a particular system’s geolocation based on its Mac address etc.

Fern Wi-fi cracker can be found under the category Wireless Exploitation tools

Backtrack 5R3 / Fern WIFI Cracker....

Select the appropriate interface on which you want to sniff on.

Once you have selected it, it will automatically create a virtual interface (mon0) on top of the selected interface (wlan0) as is clear from the image below.

Now, click on “Scan for access points”. As you can see from the results, it found 4 networks with WEP and 1 network with WPA.

In this case, we will be cracking a WEP network named “Infosec test” which i set up for testing purposes. Click on the network “Infosec test” and it will show you its specific information like the BSSID of the access point, the channel on which the Access point is transmitting on etc. On the bottom right, you can select from a variety of attacks like the Arp request replay attack, caffe latte attack etc. In my case, i will be going for an Arp request replay attack. Once this is done, click on “Wi-fi attack” and this will start the whole process of cracking WEP.