Home > Ransomware > .ENCRYPTED Virus (Crypren Ransomware) – Remove + Restore Files

.ENCRYPTED Virus (Crypren Ransomware) – Remove + Restore Files

This article has been created in order to help you by explaining how to remove the .ENCRYPTED files virus from your computer and how to restore files encoded by Crypren ransomware on your PC.

The Crypren ransomware, which previously used the .encrypted file suffix it adds to the encoded files of the computers infected by it, has been reported by security researchers to have come back in a new version, using the .ENCRYPTED file extension. The ransomware virus this time demands victims to pay the sum of around 37 USD in order to get their files to be working again and it also drops a ransom note file, named READ_THIS_TO-DECRYPT.html, which contains detailed ransom instructions on how to make the ransom payoff. In case your computer has been infected by the Crypren ransomware, recommendations are to read this article and learn how to remove this virus from your PC and how to restore files, encrypted by it on your computer.

Threat Summary

Name Crypren Ransomware
Type Ransomware, Cryptovirus
Short Description Encrypts the files on your computer and then asks to pay 37 dollars to recover them.
Symptoms The virus sets the .ENCRYPTED file extension to the encrypted files and then drops a ransom note, called READ_THIS_TO_DECRYPT.html with instructions to pay the ransom.
Distribution Method Spam Emails, Email Attachments, Executable files
Detection Tool See If Your System Has Been Affected by malware


Malware Removal Tool

User Experience Join Our Forum to Discuss Crypren Ransomware.
Data Recovery Tool Windows Data Recovery by Stellar Phoenix Notice! This product scans your drive sectors to recover lost files and it may not recover 100% of the encrypted files, but only few of them, depending on the situation and whether or not you have reformatted your drive.

Crypten .ENCRYPTED Files Virus – Distribution Means

The .ENCRYPTED variant of the Crypren Ransomware has been reported to be spread via multiple different methods. Similar to the other ransomware viruses, Crypren ransomware may be spread via malicious spam e-mails, carrying malicious attachments or legitimate attachments, combined with malicious infection code. The usual pretext for those attachments to be spread is via a purchase of a product which you are awaiting shipment for, from a big retailer, like eBay, DHL or any other form of online service.

And in some cases, the infection can even be triggered as a result of simply downloading the malicious file, so experts strongly advise to check the sender e-mail address and to refrain from downloading malicious attachments on your computer, since it is also a risky move. If you believe the e-mail sent to you contains a malicious attachment, a good idea would be to forward the e-mail to an online service which will check it for viruses without you even downloading it. One such service is ZipeZip and it’s absolutely free.

In addition to this, Crypren ransomware may also be spread on victims computers via other menas as well, for instance if the virus file comes as a fake program of some sort, like:

  • Setups of software or games.
  • Cracks.
  • Patches.
  • Key generator programs.
  • Other executable type of files.

Crypren .ENCRYPTED Ransomware – More Information

Crypren is the type of ransomware infection, which emerged back in March, 2016 and now the threat has been reported to return in a new variant. The new variant of Crypren does not differ much from the older one and still aims to encrypt the files on your PC and hold them hostage, until you pay a hefty ransom. The virus makes sure to instruct you of the situation and also ensures that it’s presence is known via it’s ransom note file. It is called READ_THIS_TO_DECRYPT.html and looks like the following:

Text from image:


Your data (photos, documents, databases, etc.) have been encrypted with a private and unique key generated for this computer. This means that you will not be able to access your files anymore until they are decrypted. The private key is stored in our servers and the only way to receive your key to decrypt your files is making a payment.
The payment has to be done in Bitcoin to a unique address that we generated for you. Bitcoins are the virtual currency to make online payments. If you don’t know how to get Bitcoins, you can click the button “How to buy Bitcoins” below and follow the instructions. If you have problem with this task use internet.
You have only 1 week to submit the payment. When this time ends, the unique key will be destroyed and you won’t be able to recover your files anymore.
To recover your files, you must send 0,1 Bitcoins ( ~$37 ) to the next Bitcoin address…

The virus demands you to pay the sum of 37 dollars and it’s primary purpose is to scare you into paying by giving you a deadline of one week time to pay the ransom. The virus threatens to erase your encrypted files otherwise.

In addition to this, the newer version of Crypren Ransomware may come together with some extra “features”. The virus may delete the shadow volume copies on you PC and eliminate any chances of you recovering your files by using Windows recovery methods. This is done by executing a script as an administrator on the computers of victims. The script contains the following commands which are silently input in Windows Command Prompt:

→ process call create “cmd.exe /c vssadmin.exe delete shadows /all /quiet & bcdedit.exe /set {default} recoveryenabled no & bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures”

After this, the ransomware may initiate it’s file encryption operations.

Crypren .ENCRYPTED Ransomware – Encryption Process

In order to encrypt the files on your computer system, the Crypren ransomware may also begin to perform multiple different types of operations on the victim’s computer, starting with possibly checking if the virus is running in the virtual environment or not. If so, the Crypren ransomware may self-delete and will not encrypt any files whatsoever. But if the virus is running on an actual OS, it may begin to encrypt the files that may contain the following file extensions:

→ .html, .jpg, .jpg2, .mdb, .mp3, .mp4, .mp4infovid, .mp4v, .pdf, .php, .php3, .png, .ppt, .pptm, .pptx, .accdb, .accde, .accdr, .accdt, .bmp, .cpp, .cs, .css, .csv, .csy, .doc, .docm, .docx, .docxml, .docz, .gif, .gzip, .py, .rar, .rar5, .rb, .rtf, .sql, .sqlite, .sqlite3, .sqlitedb, .swf, .swfhtml, .tar, .targz, .targz2, .tarlzma, .tarxz, .txt, .xlmv, .xls, .xlsm, .xlsx, .xml, .zip, .zipx

If those files are detected on your, computer, the Crypren ransomware may use the AES-256 encryption mode to encrypt those files, after which the malware may begin to apply a second encryption algorithm, known as RSA-2048 to encrypt the decryption key and make decryption even more impossible than before. After doing so, this malware sets the .ENCRYPTED file extension to the files and they may start to appear like the following:

Remove Crypren Ransomware and Restore .ENCRYPTED Files

In order to make sure that the malicious files and objects, belonging to Crypren ransomware are fully gone from your computer, security researchers recommend to follow the removal instructions underneath this article. They are divided in manual and automatic removal instructions whose primary purpose is to help you based on how much experience you have with malware removal. In addition to this, security researchers strongly advise users to download and install and advanced anti-malware software as the most effective way to remove Crypren Ransomware from your PC.

If you want to restore files, encrypted by this malware on your computer, there are other methods to do that, besides paying a hefty ransom. We have outlined several of those alternative methods in step “2. Restore files, encrypted by Crypren Ransomware” underneath. They may not be 100% effective, but may help you to restore as many files as possible.

Ventsislav Krastev

Ventsislav is a cybersecurity expert at SensorsTechForum since 2015. He has been researching, covering, helping victims with the latest malware infections plus testing and reviewing software and the newest tech developments. Having graduated Marketing as well, Ventsislav also has passion for learning new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management, Network Administration and Computer Administration of System Applications, he found his true calling within the cybersecrurity industry and is a strong believer in the education of every user towards online safety and security.

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Step 1: Scan for Crypren Ransomware with SpyHunter Anti-Malware Tool

1. Click on the "Download" button to proceed to SpyHunter's download page.

It is recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria.

2. After you have installed SpyHunter, wait for it to update automatically.

scan for and delete ransomware virus step 2

3. After the update process has finished, click on the 'Malware/PC Scan' tab. A new window will appear. Click on 'Start Scan'.

scan for and delete ransomware virus step 3

4. After SpyHunter has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the 'Next' button.

scan for and delete ransomware virus step 4

If any threats have been removed, it is highly recommended to restart your PC.

Ransomware Automatic Removal - Video Guide

Step 2: Uninstall Crypren Ransomware and related malware from Windows

Here is a method in few easy steps that should be able to uninstall most programs. No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it. To do that:

1. Hold the Windows Logo Button and "R" on your keyboard. A Pop-up window will appear.
delete ransomware from windows step 1

2. In the field type in "appwiz.cpl" and press ENTER.
delete ransomware from windows step 2

3. This will open a window with all the programs installed on the PC. Select the program that you want to remove, and press "Uninstall"
delete ransomware from windows step 3Follow the instructions above and you will successfully delete most unwanted and malicious programs.

Step 3: Clean any registries, created by Crypren Ransomware on your computer.

The usually targeted registries of Windows machines are the following:

  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce

You can access them by opening the Windows registry editor and deleting any values, created by Crypren Ransomware there. This can happen by following the steps underneath:

1. Open the Run Window again, type "regedit" and click OK.
delete ransomware virus registries step 1

2. When you open it, you can freely navigate to the Run and RunOnce keys, whose locations are shown above.
delete ransomware virus registries step 2

3. You can remove the value of the virus by right-clicking on it and removing it.
delete ransomware virus registries step 3 Tip: To find a virus-created value, you can right-click on it and click "Modify" to see which file it is set to run. If this is the virus file location, remove the value.

Before starting "Step 4", please boot back into Normal mode, in case you are currently in Safe Mode.
This will enable you to install and use SpyHunter 5 successfully.

Step 4: Boot Your PC In Safe Mode to isolate and remove Crypren Ransomware


Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your PC with SpyHunter

Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter's malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria

1. Hold Windows Key + R.
remove ransomware in safe mode step 1

2. The "Run" Window will appear. In it, type "msconfig" and click OK.
remove ransomware in safe mode step 2

3. Go to the "Boot" tab. There select "Safe Boot" and then click "Apply" and "OK".
remove ransomware in safe mode step 3
Tip: Make sure to reverse those changes by unticking Safe Boot after that, because your system will always boot in Safe Boot from now on.

4. When prompted, click on "Restart" to go into Safe Mode.
remove ransomware in safe mode step 4

5. You can recognise Safe Mode by the words written on the corners of your screen.
remove ransomware in safe mode step 5

Step 5: Try to Restore Files Encrypted by Crypren Ransomware.

Method 1: Use STOP Decrypter by Emsisoft.

Not all variants of this ransomware can be decrypted for free, but we have added the decryptor used by researchers that is often updated with the variants which become eventually decrypted. You can try and decrypt your files using the instructions below, but if they do not work, then unfortunately your variant of the ransomware virus is not decryptable.

Follow the instructions below to use the Emsisoft decrypter and decrypt your files for free. You can download the Emsisoft decryption tool linked here and then follow the steps provided below:

1 Right-click on the decrypter and click on Run as Administrator as shown below:

stop ransomware decryptor step 1

2. Agree with the license terms:

stop ransomware decryptor step 2

3. Click on "Add Folder" and then add the folders where you want files decrypted as shown underneath:

stop ransomware decryptor step 3

4. Click on "Decrypt" and wait for your files to be decoded.

stop ransomware decryptor step 4

Note: Credit for the decryptor goes to Emsisoft researchers who have made the breakthrough with this virus.

Method 2: Use data recovery software

Ransomware infections and Crypren Ransomware aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.

1. Download the recommended Data Recovery software by clicking on the link underneath:

Simply click on the link and on the website menus on the top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.

Crypren Ransomware-FAQ

What is Crypren Ransomware Ransomware?

Crypren Ransomware is a ransomware infection - the malicious software that enters your computer silently and blocks either access to the computer itself or encrypt your files. 

Many ransomware viruses use sophisticated encryption algorithms to make your files inaccessible. The goal of ransomware infections is to demand that you pay a ransom payment to get access to your files back.

What Does Crypren Ransomware Ransomware Do?

Ransomware in general is a malicious software that is designed to block access to your computer or files until a ransom is paid.

Ransomware viruses can also damage your system, corrupt data and delete files, resulting in the permanent loss of important files.

How Does Crypren Ransomware Infect?

Via several ways.Crypren Ransomware Ransomware infects computers by being sent via phishing emails, containing virus attachment. This attachment is usually masked as an important document, like an invoice, bank document or even a plane ticket and it looks very convincing to users.

Another way you may become a victim of Crypren Ransomware is if you download a fake installer, crack or patch from a low reputation website or if you click on a virus link. Many users report getting a ransomware infection by downloading torrents.

How to Open .Crypren Ransomware files?

You can't without a decryptor. At this point, the .Crypren Ransomware files are encrypted. You can only open them once they are decrypted using a specific decryption key for the particular algorithm.

What to Do If a Decryptor Does Not Work?

Do not panic, and backup the files. If a decryptor did not decrypt your .Crypren Ransomware files successfully, then do not despair, because this virus is still new.

Can I Restore ".Crypren Ransomware" Files?

Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .Crypren Ransomware files. 

These methods are in no way 100% guaranteed that you will be able to get your files back. But if you have a backup, your chances of success are much greater.

How To Get Rid of Crypren Ransomware Virus?

The safest way and the most efficient one for the removal of this ransomware infection is the use a professional anti-malware program.

It will scan for and locate Crypren Ransomware ransomware and then remove it without causing any additional harm to your important .Crypren Ransomware files.

Can I Report Ransomware to Authorities?

In case your computer got infected with a ransomware infection, you can report it to the local Police departments. It can help authorities worldwide track and determine the perpetrators behind the virus that has infected your computer.

Below, we have prepared a list with government websites, where you can file a report in case you are a victim of a cybercrime:

Cyber-security authorities, responsible for handling ransomware attack reports in different regions all over the world:

Germany - Offizielles Portal der deutschen Polizei

United States - IC3 Internet Crime Complaint Centre

United Kingdom - Action Fraud Police

France - Ministère de l'Intérieur

Italy - Polizia Di Stato

Spain - Policía Nacional

Netherlands - Politie

Poland - Policja

Portugal - Polícia Judiciária

Greece - Cyber Crime Unit (Hellenic Police)

India - Mumbai Police - CyberCrime Investigation Cell

Australia - Australian High Tech Crime Center

Reports may be responded to in different timeframes, depending on your local authorities.

Can You Stop Ransomware from Encrypting Your Files?

Yes, you can prevent ransomware. The best way to do this is to ensure your computer system is updated with the latest security patches, use a reputable anti-malware program and firewall, backup your important files frequently, and avoid clicking on malicious links or downloading unknown files.

Can Crypren Ransomware Ransomware Steal Your Data?

Yes, in most cases ransomware will steal your information. It is a form of malware that steals data from a user's computer, encrypts it, and then demands a ransom in order to decrypt it.

In many cases, the malware authors or attackers will threaten to delete the data or publish it online unless the ransom is paid.

Can Ransomware Infect WiFi?

Yes, ransomware can infect WiFi networks, as malicious actors can use it to gain control of the network, steal confidential data, and lock out users. If a ransomware attack is successful, it could lead to a loss of service and/or data, and in some cases, financial losses.

Should I Pay Ransomware?

No, you should not pay ransomware extortionists. Paying them only encourages criminals and does not guarantee that the files or data will be restored. The better approach is to have a secure backup of important data and be vigilant about security in the first place.

What Happens If I Don't Pay Ransom?

If you don't pay the ransom, the hackers may still have access to your computer, data, or files and may continue to threaten to expose or delete them, or even use them to commit cybercrimes. In some cases, they may even continue to demand additional ransom payments.

Can a Ransomware Attack Be Detected?

Yes, ransomware can be detected. Anti-malware software and other advanced security tools can detect ransomware and alert the user when it is present on a machine.

It is important to stay up-to-date on the latest security measures and to keep security software updated to ensure ransomware can be detected and prevented.

Do Ransomware Criminals Get Caught?

Yes, ransomware criminals do get caught. Law enforcement agencies, such as the FBI, Interpol and others have been successful in tracking down and prosecuting ransomware criminals in the US and other countries. As ransomware threats continue to increase, so does the enforcement activity.

About the Crypren Ransomware Research

The content we publish on SensorsTechForum.com, this Crypren Ransomware how-to removal guide included, is the outcome of extensive research, hard work and our team’s devotion to help you remove the specific malware and restore your encrypted files.

How did we conduct the research on this ransomware?

Our research is based on an independent investigation. We are in contact with independent security researchers, and as such, we receive daily updates on the latest malware and ransomware definitions.

Furthermore, the research behind the Crypren Ransomware ransomware threat is backed with VirusTotal and the NoMoreRansom project.

To better understand the ransomware threat, please refer to the following articles which provide knowledgeable details.

As a site that has been dedicated to providing free removal instructions for ransomware and malware since 2014, SensorsTechForum’s recommendation is to only pay attention to trustworthy sources.

How to recognize trustworthy sources:

  • Always check "About Us" web page.
  • Profile of the content creator.
  • Make sure that real people are behind the site and not fake names and profiles.
  • Verify Facebook, LinkedIn and Twitter personal profiles.

  1. Joni

    Hello, i want to ask how to remove extension file .pumax?

  2. Venom Spectre

    Hello, i want to ask how to remove extension file .tcgmif?
    Created by gandcrab v5.0.4


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