Backtrack 3 is a nice linux distribution that focuses on “computer nerdy stuff.” It takes advantage of SLAX’s modular design and structure to enable the user to include customizable scripts, additional tools and configurable kernels in personalized distributions. The BackTrack project was created by Mati Aharoni and Max Moser (with updates provided by jayme) and is a collaborative effort involving the community.

I wouldn’t really call it an OS, BackTrack is the most Top rated linux live distribution focused on penetration testing. With no installation whatsoever, the analysis platform is started directly from the CD-Rom and is fully accessible within minutes, and it gets the job done well.

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Description: CD Image
Name:: bt3-final.iso
Size: 695 MB
MD5: f79cbfbcd25147df32f5f6dfa287c2d9
SHA1: 471f0e41931366517ea8bffe910fb09a815e42c7
Download: Click here

Description: USB Version (Extended)
Name:: bt3final_usb.iso
Size: 784 MB
MD5: 5d27c768e9c2fef61bbc208c78dadf22
SHA1: 3aceedea0e8e70fff2e7f7a7f3039704014e980f
Download: Click here

Description: VMware Image
Name: BACKTRACK3_VMWare.rar
Size: 689 MB
MD5: 94212d3c24cf439644f158d90094ed6a
SHA1: 21c9a3f9658133efff259adbe290723583b4fd82
Download: Click here

BackTrack focuses its central idea on the needs of computer penetration testers. The inclusion of Live CD and Live USB functionality enables any user to just insert their respective data medium and boot up BackTrack. Direct hard disk installations (2.7 GB uncompressed) can also be completed within the Live CD (700 MB compressed) environment through the basic graphical installation wizard with no restart subsequent to installation. BackTrack further continues its compatibility with the computer forensics demographic with accessibility and internationalization by including support for Japanese input in reading and writing in Hiragana, Katakana and Kanji.

The key additions to the BackTrack suite are notably -

* Metasploit integration
* RFMON wireless drivers
* Kismet
* AutoScan-Network - AutoScan-Network is a network discovering and managing application
* Nmap
* Ettercap
* Wireshark (formerly known as Ethereal)
BackTrack’s functionality further increases with the arrangement of each tool in 16 categories. The tool categories are as follows -

* Enumeration
* Exploit Archives
* Scanners
* Password Attacks
* Fuzzers
* Spoofing
* Sniffers
* Tunneling
* Wireless Tools
* Bluetooth
* Cisco Tools
* Database Tools
* Forensic Tools
* BackTrack Services
* Reversing
* Misc