Infected with CryptON Ransomware? Need to decrypt your files?

What is CryptON Ransomware

CryptON Ransomware is crypto-virus, that gave birth to large family of ransomware encryption viruses like Nemesis, X3M, Cry9, Cry128, Cry36, Losers. This particular ransomware appends _x3m, _locked, _r9oj, _crypt extension to filenames and saves original extension. So after encryption user file sample.txt will become sample_crypt.txt. After successful encryption CryptOn Ransomware creates readme_encrypted.txt file with following message:

All data on your PC is encrypted!
To decrypt your data, you need to pay the amounts shown below.
Please note that the payment confirmation may take some time (from 1 hour to 1 day)
All this time, the program must be running and have an Internet connection.
After the successful confirmation of payment – decoding will start automatically.
Read more about how to make a payment using Bitcoin can be found on the Internet network.
In destination address – specify the Bitcoin address, listed below.
Keep in mind that the services may charge a fee from the payment, it is important that we must…
It is not recommended to attempt to recover the data, or remove this program! This can lead to a complete loss of your data forever!
To restore data, your must be connected to the Internet.

Newer version of CryptON Ransomware can add following suffixes:


This ransomware aims following file types:

.7z; .cd; .cdr; .dat; .db; .dbf; .dbx; .doc; .docx; .htm; .html; .jpg; .mdb; .mht; .pdf; .png; .ppt; pptx; .psd; .pst; .rar; .rtf; .tbb; .tbn; .tiff; .txt; .vsd; .xls; .xlsx; .xml; .zip

Basically, after infection user documents, images, presentations, archives will be encoded with asymmetric encryption. There are several decryption tools released from companies like Emsisoft, Avast, Eset and we will give you instructions to use them below. Learn how to remove CryptON ransomware and decrypt _crypt files using guide on this page.

CryptON Ransomware english version

CryptON Ransomware russian version

Update: Use following service to identify the version and type of ransomware you were attacked by: ID Ransomware. Also check following website for possible decryptor: Emsisoft Decryptors.

How CryptON Ransomware infected your PC

CryptON Ransomware usually infects your PC through infected email attachments (be careful, as cyber criminals usually mask their spam malicious emails with attachments into Ebay email or any other popular trusted website), fake software updaters and trojans – that’s why good anti-viruses is vitally important to avoid ransomware threat. You can also get this ransomware on file sharing networks, including torrent files. Ransom is asked to be paid in BitCoins, that also makes the task difficult for the police, as user in this network are often anonymous. Encryption starts in the background. Way to protect your computer from such threats is to use antiviruses with crypto-protection like HitmanPro.Alert with CryptoGuard.

First of all don’t panic. Follow these easy steps below.

1. Start your computer in Safe Mode with networking. To do that, restart your computer, before your system starts hit F8 several times. This will stop system from loading and will show Advanced boot options screen. Choose Safe mode with networking option from the options list using up and down arrows on your keyboard and hit Enter.
2. Log in to the system infected with the CryptON Ransomware virus. Launch your Internet browser and download a reliable anti-malware program and start a full system scan. Once the scan is complete, review scan results and remove all entries detected.

Recommended Solution:

Norton is a powerful removal tool. It can remove all instances of newest viruses, similar to CryptON Ransomware – files, folders, registry keys.


Download Norton*Trial version of Norton provides detection of computer viruses for FREE. To remove malware, you have to purchase the full version of Norton.

Step 2: Remove following files and folders of CryptON Ransomware:

Remove following registry entries:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run\"crypton" = "%AppData%\Crypton.exe"
HKEY_CURRENT_USER\Software\Crypton\"mail" = ".exe"
HKEY_CURRENT_USER\Software\Crypton\"lang" = "ru"

Remove following files:


How to decrypt files infected by CryptON Ransomware (_x3m, _locked, _r9oj, _crypt files)?

Use automated decryption tools

emsisoft decryptor for crypton ransomware

There is ransomware decryptor from Emsisoft that can decrypt _crypt files. It is free and may help you restore _crypt files encrypted by CryptON Ransomware virus. To use this tool you will need encrypted file and its original (not encrypted copy). This will help to decrypt the rest of the files. Drag this 2 files to decrypter executable:

how to use emsisoft crypton decrypter

Emsisoft decrypter will work to find decryption key and you then can use it to decrypt files in any folders on your PC.

emsisoft crypton successful decryption

Download it here:

Download CryptON Decrypter

You can also try to use manual methods to restore and decrypt _crypt files.

Decrypt _crypt files manually

Restore the system using System Restore

system restore

Although latest versions of CryptON Ransomware remove system restore files, this method may help you partially restore your files. Give it a try and use standard System Restore to revive your data.

  1. Initiate the search for ‘system restore
  2. Click on the result
  3. Choose the date before the infection appearance
  4. Follow the on-screen instructions

Roll the files back to the previous version

Previous versions can be copies of files and folders created by Windows Backup (if it is active) or copies of files and folders created by System Restore. You can use this feature to restore files and folders that you accidentally modified or deleted, or that were damaged (in our case – CryptON Ransomware by CryptON Ransomware). This feature is available in Windows 7 and later versions.

windows previous versions

  1. Right-click the file and choose Properties
  2. Open the Previous Version tab
  3. Select the latest version and click Copy
  4. Click Restore

Restore _crypt files using shadow copies


  1. Download and run Stellar Data Recovery.
  2. Select type of files you want to restore and click Next.
  3. Select the drive and folder where your files are located and date that you want to restore them from and press Scan.
  4. Once the scanning process is done, click Recover to restore your files.

Protect your files from ransomware

Most modern software can protect your data from ransomware and crypto-trojans, but thousands of people still get infected. There are several programs that use different approach to protect your files from ransomware and lockers. One of the best is SOS Online Backup. The product will automatically find important files, then simply make a daily backup on the remote server. SOS runs quietly and automatically in the background and supports any size and any file type. All SOS apps (desktop AND mobile) encrypt files using UltraSafe 256-bit AES before transferring them to the cloud. You will not lose your important data. Download One Year Plan.

SOS Online Backup

Information provided by: Alexey Abalmasov


  1. Buena noche desde Colombia, quisiera que me ayudaran y me orienten al respecto, mi equipo ha sido infectado con CryptON cuya extensión es (, me gustaría saber si puedo usar la herramienta Emsisoft Decrypter para recuperar los archivos con esta extensión, muchas gracias.

  2. the extension “” can be decrypted ? by the CryptON decrypter ? thank you for the feedback

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