Created by Michael Gillespie that decrypts files encrypted by the STOP Ransomware!



  -  Freeware
  • Latest Version

    STOPDecrypter LATEST

  • Review by

    Michael Reynolds

  • Operating System

    Windows XP / XP64 / Vista / Vista64 / Windows 7 / Windows 7 64 / Windows 8 / Windows 8 64 / Windows 10 / Windows 10 64

  • User Rating

    Click to vote
  • Author / Product

    Michael Gillespie / External Link

STOPDecrypter is an anti-malware and ransomware removal application built from the ground up to decrypt files and folders that were affected by the widely used “STOP Ransomware” viruses that affected thousands of users online.

Developed by Michael Gillespie, this lightweight application can detect the presence of a locally stored encryption key and use it to decrypt and unpack valuable personal files that were locked away by the malicious virus.

Instead of paying the ransom to the anonymous nefarious coder or organization, use this app top to recover encrypted files that are hidden away in a newly created archive with a weird extension name. This extension can be like ".puma", ".pumas", and ".pumax", or some of the other 50+ variations.

Before using STOPDecrypter, users first have to make sure that the original ransomware virus has been completely eliminated from their PC because a sudden reappearance of the virus can again snatch away all precious personal or work files and demand payment for them. After the PC has been completely scanned for all presence of malicious programs by reputable security software, only then can users move to the procedure of decrypting their locked files.

STOP Djvu decryptor software is a very simple tool, but nevertheless, it is still highly recommended to spend a minute to read its README.txt file which provides many answers to commonly asked questions.  The exact procedure of using this app can vary on the version of the STOP Ransomware virus that has affected the PC. Since so many variations of this ransomware software exist, some versions are immune to the decryption techniques of this app. For the versions that can be unlocked, users have usually tasked to input the ransom note, personal ID, and MAC address before decryption can be started.

However, if the app cannot handle (possibly a newer) version of the ransomware, the users can always contact the original app developer Michael Gillespie via social networks and try to find the solution. According to the reports after several months on the market, this app is very successful in handling all ransomware software that creates encrypted archives with uppercase extensions such as .KEYPASS, .DATASTOP, .PAUSA, .INFOWAIT, and others.

STOPDecrypter (STOP Djvu decryptor) is a highly useful tool for all the victims of aggressive new forms of ransomware software. Instead of paying extremely high prices that the creators of these malicious viruses demand (often ranging between $500 and $900 in anonymous cryptocurrency payments), affected users should always try to first attempt to recover their files using helpful apps like these.


The main feature of this program is its ability to decrypt files that have been encrypted by STOP ransomware. This can be a lifesaver for victims who have had their important files locked by the ransomware and don't want to pay the ransom demanded by the attackers.

It also has a user-friendly interface that makes it easy for even non-technical users to use the software. The software is also regularly updated to ensure that it can decrypt files that have been encrypted by the latest versions of STOP ransomware.

How to Use
  • Download and install the latest version of the app.
  • Run the software.
  • Click the "Select Directory" button and choose the directory that contains the encrypted files you want to decrypt.
  • Click the "Decrypt" button to start the decryption process.
  • Wait for the software to attempt to decrypt your files. This may take some time depending on the size of the files and the speed of your computer.
  • Once the decryption process is complete, check the directory to see if your files have been successfully decrypted.

What is STOP ransomware?
STOP ransomware is a type of malware that encrypts files on a victim's computer and demands a ransom payment in exchange for the decryption key.

Can STOPDecrypter decrypt all files encrypted by STOP ransomware?
No, the app cannot decrypt all files encrypted by STOP ransomware. It can only decrypt files that have been encrypted by certain versions of the ransomware.

Is STOPDecrypter safe to use?
Yes, STOPDecrypter is safe to use. It has been tested by security researchers and has not been found to contain any malware or viruses.

Can I use STOPDecrypter to decrypt files encrypted by other types of ransomware?
No, the program is specifically designed to decrypt files encrypted by the STOP ransomware. It cannot be used to decrypt files encrypted by other types of ransomware.

Is it illegal to use STOPDecrypter to decrypt files that have been encrypted by ransomware?
Using STOPDecrypter to decrypt files that have been encrypted by ransomware is not illegal. However, paying the ransom demanded by the attackers is illegal in many countries.


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System Requirements

It has minimal system requirements and can run on almost any Windows operating system, including Windows XP, Windows Vista, Windows 7, Windows 8, Windows 10, and Windows 11. It requires at least 1 GB of RAM and 100 MB of free disk space.

  • Free to use
  • User-friendly interface
  • Regularly updated to decrypt the latest versions of STOP ransomware
  • Can decrypt files without paying ransom to attackers
  • Minimal system requirements
  • Cannot decrypt all files encrypted by STOP ransomware
  • Limited to decrypting files encrypted by STOP ransomware only
  • May take some time to decrypt large files

Overall, the FileHorse review team highly recommends STOPDecrypter software to anyone who has been affected by the STOP ransomware and wants to recover their encrypted files without paying the ransom.

  • STOPDecrypter Screenshots

    The images below have been resized. Click on them to view the screenshots in full size.

    STOPDecrypter Screenshot 1
  • STOPDecrypter Screenshot 2

What's new in this version:

- Added offline key for .herad, .gehad