How to remove MKOS ransomware and decrypt .MKOS files

Article’s Guide

  1. What does .MKOS stand for?
  2. MKOS ransomware encryption process.
  3. How to remove MKOS Ransomware from your computer
  4. How to decrypt .MKOS files
  5. Data Recovery
  6. Automated decryption tools
  7. Other software

What does .MKOS stand for?

A few days ago the newest threat, that was called MKOS ransomware, had been found. This virus attacks definite file formats by the means of modifying of file structures and adding new extension – .MKOS. This virus can be expected to spread very fast, as MKOS ransomware virus belongs to the STOP(DJVU) file-encryption ransomware family. The members of this family vary from PEEK, REDL, NBES, GESD, RIGH, MERL, HETS, MSOP, ZOBM, ROTE, MBED, PEET, GROD, MOSK, TOEC, NAKW, Derp, COOT, Nols, Werd, Ndarod, Leto, to Bora and RECO ransomwares. This virus usually infects computers by the means of weaknesses in the operating system and software. For example, hackers often inject the code of MKOS ransomware into harmless files and then send it by email. When such a file is opened, the code immediately executes and since this very moment the computer is infected. If your device has been accidentally infected with it, don’t try to remove MKOS ransomware and its encryption by yourself! The decryption requires special tools and every changing of the files can damage them permanently.

MKOS ransomware encryption process.

Once the code has been executed, MKOS ransomware immediately begins the encryption process. We can divide this process into 2 logical steps: the scanning of the files and modifying of file structures. At first the virus scans all folders on the hard drive, as it can encrypt only the definite file formats. At the present moment MKOS ransomware can modify all formats of documents and media files, however, it can be easily modified and get the ability to encrypt other formats, like executable files and libraries. When the files are found, MKOS ransomware begins to modify them in order to make them unreadable. As the result these files get the new extensions – .MKOS, and it’s the clearest signs of the infection with this virus. As the final step in this process, the virus creates the ransom note _readme.txt the aim of which is to persuade the user pay the criminals. As the matter of the fact the chances, that criminals will really keep their promises are very low. It’s a common for them to stop all the contacts with the victims, once they’ve been paid. We strongly recommend you not to write them, as it can make the situation much worse. If you really need to remove MKOS ransomware and decrypt .MKOS files, you can try our solutions!


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How to remove MKOS Ransomware from your computer?

We strongly recommend you to use a powerful anti-malware program that has this threat in its database. It will mitigate the risks of the wrong installation, and will remove MKOS from your computer with all of its leftovers and register files.

Solution for Windows users: our choice is Norton 360 . Norton 360 scans your computer and detects various threats like MKOS, then removes it with all of the related malicious files, folders and registry keys.

Download Norton windows compatible

If you are Mac user, we advise you to use Combo Cleaner.

How to decrypt “.MKOS” files?

Once you’ve removed the virus, you are probably thinking how to decrypt “.MKOS” files or at least restore them. Let’s take a look at possible ways of decrypting your data.

Restore “.MKOS” files with Data Recovery

Data Recovery

  1. Download and install Data Recovery
  2. Select drives and folders with your files, then click Scan.
  3. Choose all the files in a folder, then press on Restore button.
  4. Manage export location.

Download Stellar Data Recovery

The download is an evaluation version for recovering files. To unlock all features and tools, purchase is required ($49.99-299). By clicking the button you agree to EULA and Privacy Policy. Downloading will start automatically.

Decrypt “.MKOS” files with other software

Unfortunately, due to the novelty of MKOS ransomware, there are no decryptors that can surely decrypt encrypted files. Still, there is no need to invest in the malicious scheme by paying a ransom. You are able to recover files manually.
You can try to use one of these methods in order to restore your encrypted data manually.

Decrypt .MKOS files with Emsisoft decryptor

This software includes information about more than 100 viruses of STOP(DJVU) family. All that you need are two files or some luck. You can freely use it as it distributes free of charge. If it doesn’t work for you, you can use another method.

Restore .MKOS files with Windows Previous Versions

This feature is working on Windows Vista (not Home version), Windows 7 and later versions. Windows keeps copies of files and folders which you can use to restore data on your computer. In order to restore data from Windows Backup, take the following steps:

  1. Open My Computer and search for the folders you want to restore;
  2. Right-click on the folder and choose Restore previous versions option;
  3. The option will show you the list of all the previous copies of the folder;
  4. Select restore date and the option you need: Open, Copy and Restore.

Restore .MKOS files with System Restore

You can always try to use System Restore in order to roll back your system to its condition before infection infiltration. All the Windows versions include this option.

  1. Type restore in the Search tool;
  2. Click on the result;
  3. Choose restore point before the infection infiltration;
  4. Follow the on-screen instructions.

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