Manually guess passwords via the Guess functionĮxport Passwords table to CSV and colon password file format Simplifies password/hash management and attack results via complex filtering and selectionĮasily define new attacks and practical multiple attack session management Johnny's aim is to automate and simplify the password cracking routine with the help of the tremendously versatile and robust John the Ripper, as well as add extra functionality on top of it, specific to Desktop and GUI paradigms, like improved hash and password workflow, multiple attacks and session management, easily define complex attack rules, visual feedback and statistics, all of it on top of the immense capabilities and features offered by both JtR core/proper as well as jumbo.Ĭross platform, builds and runs on all major desktop platformsīased on the most powerful and robust password cracking software, supports both John core/proper and jumbo flavorsĮxposes most useful JtR attack modes and options in a usable, yet powerful interface It was originally proposed and designed by Shinnok in draft, version 1.0 implementation was achieved by Aleksey Cherepanov as part of GSoC 2012 and Mathieu Laprise took Johnny further towards 2.0 and beyond as part of GSoC 2015. Now, make a cup of coffee, sit back and wait for John to do its thing.Johnny is the cross-platform Open Source GUI frontend for the popular password cracker John the Ripper. $ john -rules -wordlist=yourwordlist.txt hash.txt Now, under 'run' you can also find a python script, office2john.py: you can use it for extract the hash from the encrypted XLSX file:

If everything goes well, the executables for John and its related utilities will be created under './run/'.

The correct way is to extract the password hash from the file and then cracking it using John The Ripper.įor this purpose, you need to get a ' jumbo' build of John The Ripper, that supports Office files cracking. The encryption algorithm of encrypted Microsoft Excel files is 40bit RC4.Īs it is encrypted nothing could be tweaked by opening the document with a hex editor. I did it,and now i'd like to share workflow for XLSX cracking. Obviously, the file was password protected, and I had to find a way to read it.

Recently, during a forensic analysis on a laptop of an employee charged with corporate espionage, I've carved from disk a suspicious Excel file.

John the ripper download for linux