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Cyron ransomware virus. How to remove? (Uninstall guide)

removal by Gabriel E. Hall - - | Type: Ransomware
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Cyron ransomware reminds us old good Ukash viruses

Ransom note by Cyron ransomware virus

Cyron ransomware virus was first discovered on August 2017. However, its methods used for scamming PC users and stealing their money could remind us 2015 when cyber world was attacked by Ukash virus.

These threats were also considered to be ransomware-type viruses, but all what they did was blocking computer system. Once their scared their victim that he or she was noticed viewing pornographic content or similar material, hackers presented themselves as Police representatives or similar governmental authorities and required to pay a ransom.

As soon as Cyron virus infiltrates the system, it appends .CYRON file extension to the targeted data. Of course, it also uses AES encryption and Victims are asked to pay 50 euros via PaySafeCard[1] in order to get back access to the encrypted data.

Cyron ransomware is being distributed via malicious spam emails.[2] When a user opens an infected link or an attachment, malware payload is dropped on the system. Then it connects to Command and Control (C&C) server and downloads other malicious files in order to affect or stop particular Windows processes.

Malware might also delete Shadow Volume Copies to make data recovery impossible. However, Cyron virus might fail to do this task because of doing that it needs to get administrative privileges on the affected device.

Before starting data encryption, it also modifies or creates new entries in Windows registry to run on system startup. It is expected to target Run and RunOnce keys that are located in these locations:

  • 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

When Cyron settles in, it starts data encryption procedure using a sophisticated AES cryptography and locks files with .CYRON file extension. Furthermore, it delivers a lock-screen ransom note that claims that computer is locked by Police which supposedly detected children porn sites in user’s browser’s history.

Victims are expected to contact criminals via ProjectCyRoN@candymail.com email address and pay 50 euros using PaySafeCard. Nevertheless, they claim that it’s the only way to restore files; you should not believe in them. This demand is provided not by police but cyber criminals that are not reliable, so you have to remove Cyron and do not even think about following their demands.

For Cyron removal, you will need a reputable antivirus or malware removal program because it’s the only safe way to get rid of the virus safely and quickly. We recommend choosing Reimage for this task.

You can get infected by falling for spam

Authors of crypto-malware take advantage of the most popular, and unfortunately, effective ransomware distribution method – malspam. They send numerous misleading emails that include either malicious links or infected attachments.

Cyron most likely is downloaded and activated when a user activates Macros in Microsoft Office documents. These files are presented as important documents, such as bank statements, invoices and similar.

Therefore, you should be careful with received spam emails. Keep in mind that if you do not know the sender or do not expect to get an email from government, bank or delivery service, it might be sent by cyber criminals. Thus, stay away from them!

Removal of Cyron ransomware

Cyron removal requires obtaining reputable and powerful security software. IT experts from Finland[3] warn that attempts to locate and terminate ransomware-related files manually are a straight way to computer damage. The file-encrypting virus often affects legitimate system process, so it’s easy to delete safe files instead of malicious.

In order to remove Cyron automatically, you may need to start your PC with Safe Mode with Networking first. It helps to disable the virus and install/run malware removal tools. We recommend Reimage, Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus or Malwarebytes Anti Malware for virus elimination.

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What to do if failed?
If you failed to remove infection using Reimage, submit a question to our support team and provide as much details as possible.
Reimage is recommended to uninstall Cyron ransomware virus. Free scanner allows you to check whether your PC is infected or not. If you need to remove malware, you have to purchase the licensed version of Reimage malware removal tool.
More information about this program can be found in Reimage review.
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Manual Cyron virus Removal Guide:

Remove Cyron using Safe Mode with Networking

Follow these steps to disable Cyron ransomware in order to install or run security software:

  • Step 1: Reboot your computer to Safe Mode with Networking

    Windows 7 / Vista / XP
    1. Click Start Shutdown Restart OK.
    2. When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
    3. Select Safe Mode with Networking from the list Select 'Safe Mode with Networking'

    Windows 10 / Windows 8
    1. Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
    2. Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
    3. Once your computer becomes active, select Enable Safe Mode with Networking in Startup Settings window. Select 'Enable Safe Mode with Networking'
  • Step 2: Remove Cyron

    Log in to your infected account and start the browser. Download Reimage or other legitimate anti-spyware program. Update it before a full system scan and remove malicious files that belong to your ransomware and complete Cyron removal.

If your ransomware is blocking Safe Mode with Networking, try further method.

Remove Cyron using System Restore

  • Step 1: Reboot your computer to Safe Mode with Command Prompt

    Windows 7 / Vista / XP
    1. Click Start Shutdown Restart OK.
    2. When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
    3. Select Command Prompt from the list Select 'Safe Mode with Command Prompt'

    Windows 10 / Windows 8
    1. Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
    2. Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
    3. Once your computer becomes active, select Enable Safe Mode with Command Prompt in Startup Settings window. Select 'Enable Safe Mode with Command Prompt'
  • Step 2: Restore your system files and settings
    1. Once the Command Prompt window shows up, enter cd restore and click Enter. Enter 'cd restore' without quotes and press 'Enter'
    2. Now type rstrui.exe and press Enter again.. Enter 'rstrui.exe' without quotes and press 'Enter'
    3. When a new window shows up, click Next and select your restore point that is prior the infiltration of Cyron. After doing that, click Next. When 'System Restore' window shows up, select 'Next' Select your restore point and click 'Next'
    4. Now click Yes to start system restore. Click 'Yes' and start system restore
    Once you restore your system to a previous date, download and scan your computer with Reimage and make sure that Cyron removal is performed successfully.

Bonus: Recover your data

Guide which is presented above is supposed to help you remove Cyron from your computer. To recover your encrypted files, we recommend using a detailed guide prepared by 2-spyware.com security experts.

While the official decrypter is not released, you can recover your files from backups only. Of course, additional recovery methods can help you as well. But we cannot promise any good results. 

If your files are encrypted by Cyron, you can use several methods to restore them:

Data Recovery Pro might help to restore corrupted data

Data Recovery Pro is not an official Cyron decryptor, but it can still help to restore some of the encrypted files. This third-party tool has already helped numerous victims of the ransomware to get back the most important files.

Windows Previous Versions feature can let you access files before ransomware attack

If System Restore has been enabled on your PC before ransomware attack, you are lucky. By following these steps you can travel back in computer's time and copy individual files:

  • Find an encrypted file you need to restore and right-click on it;
  • Select “Properties” and go to “Previous versions” tab;
  • Here, check each of available copies of the file in “Folder versions”. You should select the version you want to recover and click “Restore”.

ShadowExplorer might helps if Shadow Volume Copies were not deleted

Sometimes ransomware does not delete Shadow Volume Copies because it does not get administrative rights to the computer. In this case, ShadowExplorer will help you.

  • Download Shadow Explorer (http://shadowexplorer.com/);
  • Follow a Shadow Explorer Setup Wizard and install this application on your computer;
  • Launch the program and go through the drop down menu on the top left corner to select the disk of your encrypted data. Check what folders are there;
  • Right-click on the folder you want to restore and select “Export”. You can also select where you want it to be stored.

Cyron Decryptor is not available yet.

Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from Cyron and other ransomwares, use a reputable anti-spyware, such as Reimage, Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus or Malwarebytes Anti Malware

About the author

Gabriel E. Hall
Gabriel E. Hall - Passionate web researcher

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