Feb 052014
 

Install the latest John the Ripper 1.7.9 with the Jumbo 7 patch. Before downloading John you will need to install the CUDA development files. See this blog article for instructions on how to install the latest Nvida drivers for Ubuntu 13.10 and latest CUDA development files.
Continue reading »

Jul 052012
 

JtR 1.7.9 with Jumbo 6 now offers GPU support for computationally intensive (slow-hash) password encryptions like WPA-PSK.  This POST will detail compiling JtR with OpenCL support.  I have an really old ATI Radeon HD card but it works with OpenCL so here goes.  This compile works for Ubuntu LTS 12.04 and 10.04.  You should read the doc file README.opencl for notes for more info on how to compile JtR with OpenCL support.

Continue reading »

Sep 192011
 

I’m now providing an updated Linux Penetration Testing Laptop Setup document to help install popular and useful vulnerability assessment tools for the Linux operating system. You can go and obtain Backtrack but I feel that you will have more understanding of the tools and Linux in general if you install the tools yourself. You will also have the most current version available. See Configuration Tutorials for the latest document.

Mar 302011
 

I’m now providing an updated Linux Penetration Testing Laptop Setup document to help install popular and useful vulnerability assessment tools for the Linux operating system. You can go and obtain Backtrack but I feel that you will have more understanding of the tools and Linux in general if you install the tools yourself. You will also have the most current version available. See Configuration Tutorials for the latest document.

Update:  The latest version is now v4 on Ubuntu 11.4 Natty Narhwal.

Mar 102010
 

I’ve created an updated configuration tutorial for setting up your Linux laptop to conduct system and network audits.  This version details how to get everything up and running on the latest Ubuntu currently at version 10.04 LTS (Lucid Lynx).  See the Configuration Tutorials to download the latest pdf document (currently at version 3).

Nov 162009
 

2.5.2014 – See this blog article for compiling John the Ripper with GPU support with Nvidia CUDA.

Old Post – Now with AMD OpenCL GPU support.

9.19.2011 – Updated for latest openssl and john jumbo patch on Ubuntu Natty Narwhal 11.4

Password cracking Windows hashes on Linux using John the Ripper (JtR). If you prefer the Linux operating system JtR is the password cracking utility to use. By default JtR does not support the hashes that we are interested in cracking. See below for installation and patching instructions for JtR.   Applying the patch to JtR adds the functionality to crack NTLM and MS-Cache passwords.  NOTE:  This install was done on Ubuntu 10.4 LTS but should work on any Linux system since we are compiling from source.
Continue reading »