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MadPassExt v1.00 (Microsoft Account DPAPI Password Extractor)
Copyright (c) 2021 Nir Sofer
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Description
This tool allows you to decrypt and extract the secret DPAPI password generated for your Microsoft account when using it to log into Windows 10 or Windows 11.
After you retrieve this DPAPI password, you can use it to recover passwords encrypted with DPAPI from external hard drive,
as long as they were encrypted with the same Microsoft account.
Example for NirSoft tools that allows you to recover passwords and data from external drive with the password you extract with this tool:
- ChromeCookiesView - For extracting cookies of Chrome Web browser stored on external drive.
- ChromePass - For recovering passwords of Chrome Web browser stored on external drive.
- CredentialsFileView - For decrypting Windows Credentials passwords and data stored on external drive.
- VaultPasswordView - For decrypting Windows Vault passwords and data stored on external drive.
System Requirements
You can use this tool on any version of Windows, as long as you know the login password of your Microsoft account, and you have
read access to the cache file of your Microsoft account (Usually located under the following folder - C:\Windows\System32\config\systemprofile\AppData\Local\Microsoft\Windows\CloudAPCache\MicrosoftAccount )
Be aware that this cache file is generated only after you login with your Microsoft account on Windows 10 or Windows 11.
How to use MadPassExt
MadPassExt doesn't require any installation process or additional DLL files. In order to start using it, simply run the executable file - MadPassExt.exe
After running MadPassExt.exe, the main window is displayed, and you have to type the password of your Microsoft account.
Optionally, you can also type the filename or folder of your Microsoft account cache file.
You can find it in the following path: C:\Windows\System32\config\systemprofile\AppData\Local\Microsoft\Windows\CloudAPCache\MicrosoftAccount\[Account ID]\Cache\CacheData
If you don't fill this field, MadPassExt will find the cache file of your account automatically.
Click the 'Decrypt Microsoft Account Cache File' button to decrypt the cache file. If you get 'Cannot find the cache file of your Microsoft account' error message, you have
to run this tool as Administrator ('Run As Administrator' button) in order to get permission to read the Microsoft account cache file.
Alternatively, if you want to run this tool without admin access - you can browse into the Microsoft account cache folder from Windows Explorer, and then Windows Explorer will allow you to add permission to this folder.
If you provided the correct password and MadPassExt managed to decrypt the cache file, you should see the secret DPAPI password.
You can click the 'Copy DPAPI Password To Clipboard' button and then paste it to the login password field of another tool that decrypts the DPAPI passwords.
Translating MadPassExt to other languages
In order to translate MadPassExt to other language, follow the instructions below:
- Run MadPassExt with /savelangfile parameter:
MadPassExt.exe /savelangfile
A file named MadPassExt_lng.ini will be created in the folder of MadPassExt utility.
- Open the created language file in Notepad or in any other text editor.
- Translate all string entries to the desired language.
Optionally, you can also add your name and/or a link to your Web site.
(TranslatorName and TranslatorURL values) If you add this information, it'll be
used in the 'About' window.
- After you finish the translation, Run MadPassExt, and all translated
strings will be loaded from the language file.
If you want to run MadPassExt without the translation, simply rename the language file, or move
it to another folder.
License
This utility is released as freeware.
You are allowed to freely distribute this utility via CD-ROM, DVD,
Internet, or in any other way, as long as you don't charge anything for this and you don't
sell it or distribute it as a part of commercial product.
If you distribute this utility, you must include all files in
the distribution package, without any modification !
Disclaimer
The software is provided "AS IS" without any warranty, either expressed or implied,
including, but not limited to, the implied warranties of merchantability and fitness
for a particular purpose. The author will not be liable for any special, incidental,
consequential or indirect damages due to loss of data or any other reason.
Feedback
If you have any problem, suggestion, comment, or you found a bug in my utility,
you can send a message to support@nirsoft.net
MadPassExt is also available in other languages. In order to change the language of
MadPassExt, download the appropriate language zip file, extract the 'madpassext_lng.ini',
and put it in the same folder that you Installed MadPassExt utility.
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