How to remove CryLock ransomware and decrypt files

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What is CryLock ransomware?

CryLock is a cryptovirus virus that demands a ransom in Bitcoins in exchange for user data. Cybercriminals use AES encryption algorithms to block all personal files that are placed on the infected computer. In most cases, CryLock ransomware spreads via spam emails, pirated software, software crack, and malware-laden websites. If it does manage to bypass the computer security system, you will lose access to your personal data. Even though virus developers claim that they are the only ones able to return your files, you shouldn’t trust them since there are no guarantees that they uphold the promises. Instead, you may use our guide to remove CryLock ransomware and decrypt files.

remove CryLock ransomware

The content of ransom note (how_to_decrypt.hta) :

ENCRYPTED
What happened?
All your documents, databases, backups, and other critical files were encrypted.
Our software used the AES cryptographic algorithm (you can find related information in Wikipedia).

It happened because of security problems on your server, and you cannot use any of these files anymore. The only way to recover your data is to buy a decryption key from us.

To do this, please send your unique ID to the contacts below.
E-mail:jericoni@pm.me copy Unique ID:[-]copy
Right after payment, we will send you a specific decoding software that will decrypt all of your files. If you have not received the response within 24 hours, please contact us by e-mail bigbosscry@pm.me.During a short period, you can buy a decryption key with a
50% discount
4 days 23:51:28
The price depends on how soon you will contact us.All your files will be deleted permanently in:6 days 23:51:28 Attention!
! Do not try to recover files yourself. this process can damage your data and recovery will become impossible.
! Do not waste time trying to find the solution on the Internet. The longer you wait, the higher will become the decryption key price.
! Do not contact any intermediaries. They will buy the key from us and sell it to you at a higher price.
What guarantees do you have?

Before payment, we can decrypt three files for free. The total file size should be less than 5MB (before archiving), and the files should not contain any important information (databases, backups, large tables, etc.)

Once the encryption procedure is done, you won’t be able to open files with .[bigbosscry@pm.me][1].[xxxxxxxx-xxxxxxxx] extension unless they are decrypted. After that, CryLock ransomware displays a pop-up window (how_to_decrypt.hta) that contains a ransom-demanding message. Cybercriminals urge users to contact them via email to know the ransom amount and solve the problem as soon as possible. As usual, cybercriminals offer free decryption of several files to prove that they can really decrypt the victim’s files. Typically, such virus programs encrypt data securely enough so that you have no choice but to purchase decryption tools from cybercriminals. Regular backups will save you these problems. It is worth noting that the files remain encrypted even after the removal of the ransomware, its deletion only prevents further encryption.

Screenshot of CryLock files:

remove CryLock ransomware

At the last stage of the infection stage, this ransomware may delete all shadow volumes on your computer. After that, you will not be able to carry out the standard procedure for recovering your encrypted data using these shadow volumes. There are two solutions to remove CryLock Ransomware and decrypt your files. The first is to use an automated removal tool. This method is suitable even for inexperienced users since the removal tool can delete all instances of the virus in just a few clicks. The second is to use the Manual Removal Guide. This is a more complex way that requires special computer skills.

How CryLock ransomware gets on my computer?

Cybercriminals use various techniques to deliver the virus to the target computer. Ransomware viruses can infiltrate victims’ computers more than in one or two ways, in most cases, cryptoviral extortion attack is carried out with the help of the following methods:

How to remove CryLock ransomware?

Recommended Solution:

Try Norton

Norton is a powerful removal tool. It can detect and remove all instances of newest viruses, pop-ups, ransomware or trojans.

Download Norton

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After the virus is completely removed from your system, you can begin the process of restoring your files.

How to decrypt files infected by CryLock Ransomware?

Most regrettably, there is no free decryption tool that will be able to decrypt files encrypted CryLock Ransomware. All of the methods listed below do not guarantee full file recovery. Nevertheless, due to the lack of other ways than to pay the ransom, we advise you to perform them, maybe they will help at least partially restore your data.


Method 1. Restore your files with the help of Recovery Tool

Stellar Data RecoveryIn case your PC has been attacked by ransomware, you may restore your files by using file recovery software. Stellar Data Recovery is one of the most effective tools that can recover lost and corrupted files — documents, emails, pictures, videos, audio files, and more — on any Windows device. The powerful scan engine can detect compromised files and finally save them to specified destination. Despite its advancedness, it’s very concise and simple so that even the most inexperienced user can figure it out.

Download Stellar Data Recovery
  1. Run Stellar Data Recovery.
  2. Select type of files you want to restore and click Next.
  3. Stellar Data Recovery

  4. Select the drive and folder where your files are located and date that you want to restore them from and press Scan.
  5. Stellar Data Recovery

  6. Once the scanning process is done, click Recover to restore your files.
  7. Stellar Data Recovery

  8. After this, select a destination and click Start Saving to save restored data.
  9. Stellar Data Recovery

Since new ransomware-type viruses appear almost every day, there is no technical possibility to issue a decryptor for each virus. In this case, the recovery tool comes to the rescue. Despite the fact that this is one of the most effective methods in the absence of a decryptor, this is not 100 percent and not the only way.



      Method 2. Restore the system using System Restore

      Although the latest versions of CryLock Ransomware can remove system restore files, this method may help you to partially restore your files. Give it a try and use standard System Restore to revive your data. The entire process is preferably carried out in Safe Mode with Command Prompt:

      For Windows XP/Vista/7 users:

      Restart your computer and before your system starts – hit F8 several times. This will prevent system from loading and will show Advanced boot options screen. Choose Safe mode with Command Prompt option from the options list using up and down arrows on your keyboard and hit Enter.

      safe mode with networking

      For Windows 8/10 users:

      1. Click the Start button, then select Settings
      2. Click Update & Security, then select Recovery and click Restart now.
      3. After your device reboots, go to Troubleshoot > Advanced options >Startup Settings > Restart
      4. safe mode with Command Prompt

      5. After your PC restarts, you should press F5 key to Enable Safe Mode with Command Prompt.

      After the system is loaded in Safe Mode with Command Prompt, do following:

      1. In the Command Prompt window, type cd restore and hit Enter.
      2. system restore

      3. Then type rstrui.exe and hit Enter again.
      4. system restore

      5. Once a new window shows up, click Next.
      6. system restore

      7. Choose the date before the infection appearance and click Next again
      8. system restore

      9. In the opened pop-up window, click Yes to start system restore.
      10. system restore


      Method 4. 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. This feature is available in Windows 7 and later versions.

      windows previous versions

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

      How to prevent your system from Ransomware?

      No one is safe from infection with a virus that secretly encrypts your data. But in order to minimize this risk, you need to follow the rules:

      1. Always make Windows updates on time and keep them up to date. Remember that these updates close the security holes of the system through which the virus can enter your computer.

      2. The most efficient way to avoid data loss is of course to make a backup of all important data from your computer. It is enough just to synchronize the necessary folders with one of the cloud services, so as not to be afraid to see the text requiring the payment of bitcoins in exchange for a decryption key. It can be a cloud or a remote hard drive on the network. If you store all your files on the Internet, the likelihood of virus infection will be lower. Do not make copies to external hard drives, as this could damage them.

      3. Since spam email is the most popular form of spreading ransomware-type viruses, the user should never open email attachments without first having scanned them with antivirus. Just clicking on the link or opening the attachment can damage the operating system (Windows) in a few minutes, damage important data and infect other machines with the virus.

      3. Ransomware-type viruses often crawl into a system using the Remote Desktop Protocol (RDP). RDP is a legitimate and useful feature that allows a user to take control of a remote computer or virtual machine over a network connection. But, at the same time, this is its Achilles’ heel as it’s poorly secured and has many vulnerabilities that can give hackers easy entry into the victim’s computer. In this case, we advise you to set a different from 3389 TCP port and use a more strong password. You can additionally protect yourself from virus penetration through an RDP connection with the help of a reliable firewall such as GlassWire’s Firewall

      5. All previous methods do not matter if you do not have a reliable antivirus. The presence of anti-virus protection on your computer can prevent all these unpleasant surprises. Anti-virus will protect you from malware, money loss, time loss, invasion of your personal life. Now the antivirus market is so huge that it is difficult to make a choice in favor of one of them. If you have not decided who to give preference to, we suggest you familiarize with our Top 5 Antivirus Software for Windows

      Written by Ilyas J

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