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

removal by Julie Splinters - - | Type: Ransomware

Maykolin locks files with .[] file extension

The picture illustrating Maycolin virus

Maykolin is a severe cyber infection, which belongs to the crypto-ransomware family. It's constructed on the .NET ransomware pattern[1], which enables the communication with command and control server to report a new victim and pass along generated data (user ID and key). It uses a AES and RSA[2] cryptography to encrypt personal files and attaches .[] file extension. According to the latest reports, ransomware researches detected a new Maykolin ransomware variant, which appends .[] file extension. 

As soon as the virus finishes file encryption, it generates a or text file, depending on which Maykolin version initiated the attack. The .txt file stands for a ransom note, which provides all the necessary information for the victim to understand what has just happened and what he or she has to do. According to NoVirus security experts,[3] Maykolin ransom note and behavior might resemble Dharma family of ransomware.

Extortionist explain that the PC was attacked by Maykolin virus and that each individual file can be decrypted with a unique AES-key. The victim is prompted to establish contact with extortionists ASAP via e-mail and indicate the personal ID number. The sooner he or she contacts the crooks, the smaller the ransom will be demanded. The exact ransom is not indicated, except that it will be accepted in Bitcoins. 

All your files have been encrypted!
All your files have been encrypted due to a security problem with your PC.If you want to restore them, write us to the e-mail
Your ID number is *** Write your ID number in e-mail and send us.
You have to pay for decryption in Bitcoins.The price depends on how fast you write to us. After payment we will send you the decryption tool that will decrypt all your files.
Free decryption as guarantee
Before paying you can send to us up to 3 files for free decryption.Please note that files must NOT contain valuable information and their total size must be less than 10Mb.
How to obtain Bitcoins
The easiest way to buy bitcoins is LocalBitcoins site. You have to register, click 'Buy bitcoins', and select the seller by payment method and price.
Also you can find other places to buy Bitcoins and beginners guide here:
• Do not rename encrypted files.
• Do not try to decrypt your data using third party software, it may cause permanent data loss.
• Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.

To prove the reliability, extortionists offer to decrypt three files for free. The bad news is that the ransomware is currently not decryptable, well, at least for free. The only way to decrypt files encrypted by Maykolin ransomware is to pay the ransom and expect that hackers will send you a decryption code. Unfortunately, no one can guarantee you that. 

If you have backups for most important files, all you have to do is to remove Maykolin virus from the system. Even if you don;t have backups, we recommend doing the same. Maykolin removal will swipe all your personal files that have .[] or .[] file extension away, but you can try to recover them after the removal of a virus. Maykolin removal does not take long if you run Reimage or Malwarebytes Anti Malware.

If this malware were a variation of Dharma virus, there could be a chance to recover the files as this malware as the original version is decryptable. However, further analysis reveals that it is an independent file-encrypting virus. 

Ways to spread ransomware

Assaults of crypto-malware are often carried out with the assistance of trojans. In order for them to execute on the system, they cooperate with exploit kits. Often they are placed in torrent-sharing domains. Apart from these dissemination strategies, .[] file extension virus can  can be distributed via email spam and malicious attachments. Therefore, it's important not to open email messages that contain grammar / typo mistakes, that are sent by unknown and suspicious senders, don't have body text, contain .doc, .txt, .pdf or other forms of attachments. 

Hackers can also exploit ads for their malicious campaigns. There is also a probability for this attack to occur if you enable a corrupted browser extension. Beware of corrupted Google Docs invitations as well. Besides remaining vigilant, you should also install and run malware removal program in addition to anti-virus. 

Maykolin elimination guide

Ransomware virus can hardly be terminated from the system manually. Therefore, don't waste your time to remove Maykolin by looking for related programs and files[4] under various system's folders. Most of them, except the c0e.exe exploit, which keeps sucking up CPU, can hardly be noticed without a dedicated software. Thus, to remove Maykolin virus completely use one of the programs suggested below. 

Even though criminals offer you to install Maykolin Decrypter for a particular number of Bitcoins, you should restrain from buying it. The decrypter may work and unlock your files, but each ransom is a motivation for hacker to keep doing the crimes. Thus, to not wait any longer and remove the ransomware from your PC. 

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Reimage (remover) Happiness
Reimage (remover) Happiness
Compatible with Microsoft Windows Compatible with OS X
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 Maykolin 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.
Press mentions on Reimage

Manual Maykolin virus Removal Guide:

Remove Maykolin using Safe Mode with Networking

Safe Mode should grant you access if you are deprived of the PC control. After that, you will be able to continue eliminating Maykolin virus.

  • 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 Maykolin

    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 Maykolin removal.

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

Remove Maykolin using System Restore

If the previous method did not work, you can launch your antivirus by following these steps:

  • 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 Maykolin. 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 Maykolin removal is performed successfully.

Bonus: Recover your data

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

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

Data Recovery Pro method

This app might be one of the last chances to restore your files. According to developers, it might also restore deleted email letters.

Try Windows Previous Version

If you have had Windows Previous Version feature enabled before the ransomware attack, you can try to recover individual files by following these simple steps:

  • 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”.

The usefulness of Shadow Explorer

This tool restores your files on the basis of shadow volume copies, so there are high chances that you may succeed in retrieving valuable data.

  • Download Shadow Explorer (;
  • 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.

Free Maykolin Decrypter is not yet available

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

About the author

Julie Splinters - Malware removal specialist

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