chntpw Package Description

This little program provides a way to view information and change user passwords in a Windows NT/2000 user database file. Old passwords need not be known since they are overwritten. In addition it also contains a simple registry editor (same size data writes) and an hex-editor which enables you to fiddle around with bits and bytes in the file as you wish.

If you want GNU/Linux bootdisks for offline password recovery you can add this utility to custom image disks or use those provided at the tools homepage.

chntpw Homepage | Kali chntpw Repo

• Author: Petter Nordahl-Hagen
• License: GPLv2

Tools included in the chntpw package

chntpw – NT SAM password recovery utility

[email protected]:~# chntpw -h
chntpw version 0.99.6 080526 (sixtyfour), (c) Petter N Hagen
chntpw: change password of a user in a NT/2k/XP/2k3/Vista SAM file, or invoke registry editor.
chntpw [OPTIONS] <samfile> [systemfile] [securityfile] [otherreghive] [...]
 -h          This message
 -u <user>   Username to change, Administrator is default
 -l          list all users in SAM file
 -i          Interactive. List users (as -l) then ask for username to change
 -e          Registry editor. Now with full write support!
 -d          Enter buffer debugger instead (hex editor),
 -t          Trace. Show hexdump of structs/segments. (deprecated debug function)
 -v          Be a little more verbose (for debuging)
 -L          Write names of changed files to /tmp/changed
 -N          No allocation mode. Only (old style) same length overwrites possible
See readme file on how to get to the registry files, and what they are.
Source/binary freely distributable under GPL v2 license. See README for details.
NOTE: This program is somewhat hackish! You are on your own!

chntpw Usage Example

[email protected]:~# coming soon