Mkos Virus

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Mkos is a harmful piece of Windows malware that is targeted at the victim’s files, as it seeks to make them inaccessible. The purpose of Mkos is to extort money from you by not allowing you to open your files until you pay a ransom.

Mkos Virus

The Mkos Virus will encrypt your files and leave a _readme.txt file behind.

If you have been hit by a virus such as this one, you must be well-acquainted with its specifics in order to know how to counteract it and how to ameliorate the negative consequences of its attack. Mkos is a representative of the so-called Ransomware virus category. Ransomware threats like Mkos are malware tools used for the purposes of money extortion. Mkos, in particular, uses data-encryption to make it impossible for you to open or edit any of your files. The encryption this malware employs is nearly unbreakable and, in most cases, the only thing that can allow you to remove it from your files is a special private key. Of course, this key wouldn’t be available to you once the Ransomware finishes putting its encryption on your files. Initially, only the hackers who’ve created this malware have the key to decrypt your files. They give you the option to pay them for this key, but if you go for this course of action there’s always the risk of getting tricked into sending your money without receiving the means to unlock your data after the payment. Therefore, our suggestion is to explore the alternative file-recovery options that may be available to you.

Mkos is a file-encrypting malware virus that will keep your files locked through its encryption until you obtain the corresponding private key. The Mkos file-encryption is typically unbreakable without the key. Still, there may be alternative ways to release your data from Mkos. In the following article and guide, we will explore those alternatives and we will try to provide you with instructions that will help you remove the infection and potentially even bring some of your locked data back to its normal accessible state.

The Mkos virus

The Mkos virus is a malicious Ransomware program with the ability to put encryption on most of your files and thereby render them inaccessible. Once the Mkos virus finishes encrypting your data, it will show a message on your screen that demands a ransom payment.

As we already established earlier in this post, paying the hackers is probably something you shouldn’t immediately do once you find out that the malware has put your data under its lockdown. In many cases, there may be a deadline of a day or two within which you are supposed to pay the ransom unless you want the demanded sum to double. This is, of course, done in order to intimidate you into paying sooner. However, it is important to not act out of impulse and fear. Instead, what you should do is systematically try every other possible method that may bring at least some of your data back. However, before you do any of that, you must first make sure to clean your computer from the Ransomware infection. Removing the virus itself is quite manageable and while it won’t automatically free your files, it will at least prevent the virus from locking any new data you may create or download. Also, if you want to use any file backups from external devices, you should only attempt to do that once the malware is removed. Otherwise, all data present on the backup is likely to get encrypted by the Ransomware, killing your best data-recovery option. You will find instructions on how to remove the Ransomware down below. If you want, you can save the details from the ransom note should you later decide to still go for the ransom payment in case none of the other methods have worked.

The Mkos file encryption

The Mkos file encryption is the process that allows this Ransomware virus to restrict all access to your most valuable data files. The Mkos file encryption could be unlocked without a key if there is a free decryptor tool available for this specific virus.

Alternatively, there may be ways to bypass the encryption altogether by restoring some of your data from shadow copies hidden deep in your system. In the recovery part of our guide, you will find both instructions on how to try to recover data from shadow copies as well as an extensive list of free file decryptors available for different versions of Ransomware. Hopefully, some of our recovery suggestions will help you bring back at least a portion of your important data in case you don’t have a full data backup at your disposal.


Name Mkos
Type Ransomware
Danger Level High (Ransomware is by far the worst threat you can encounter)
Symptoms Most Ransomware threats are able to stay hidden and show no symptoms until their encryption gets completed.
Distribution Method Some of the distribution methods involve the use of spam messages, Trojan backdoors, and misleading ads and links.
Data Recovery Tool [banner_table_recovery]
Detection Tool

Remove Mkos Ransomware

Mkos Virus

Some of the steps will likely require you to exit the page. Bookmark it for later reference.

Reboot in Safe Mode (use this guide if you don’t know how to do it).

Mkos Virus


Press CTRL + SHIFT + ESC at the same time and go to the Processes Tab. Try to determine which processes are dangerous. 

Mkos Virus

Right click on each of them and select Open File Location. Then scan the files with our free online virus scanner:

Mkos Virus
Drag and Drop Files Here to Scan
Maximum file size: 128MB.

This scanner is free and will always remain free for our website's users. You can find its full-page version at:

Scan Results

Virus Scanner Result
Mkos VirusClamAV
Mkos VirusAVG AV
Mkos VirusMaldet

After you open their folder, end the processes that are infected, then delete their folders. 

Note: If you are sure something is part of the infection – delete it, even if the scanner doesn’t flag it. No anti-virus program can detect all infections.

Mkos Virus

Hold the Start Key and R –  copy + paste the following and click OK:

notepad %windir%/system32/Drivers/etc/hosts

A new file will open. If you are hacked, there will be a bunch of other IPs connected to you at the bottom. Look at the image below:

Mkos Virus

If there are suspicious IPs below “Localhost” – write to us in the comments.

Type msconfig in the search field and hit enter. A window will pop-up:

Mkos Virus

Go in Startup —> Uncheck entries that have “Unknown” as Manufacturer.

  • Please note that ransomware may even include a fake Manufacturer name to its process. Make sure you check out every process here is legitimate.

Mkos Virus

Type Regedit in the windows search field and press EnterOnce inside, press CTRL and F together and type the virus’s Name. 

Search for the ransomware  in your registries and delete the entries. Be extremely careful –  you can damage your system if you delete entries not related to the ransomware.

Type each of the following in the Windows Search Field:

  1. %AppData%
  2. %LocalAppData%
  3. %ProgramData%
  4. %WinDir%
  5. %Temp%

Delete everything in Temp. The rest just check out for anything recently added. Remember to leave us a comment if you run into any trouble!

Mkos Virus 

How to Decrypt Mkos files

We have a comprehensive (and daily updated) guide on how to decrypt your files. Check it out here.

If the guide doesn’t help, download the anti-virus program we recommended or try our free online virus scanner. Also, you can always ask us in the comments for help!


About the author


Brandon Skies

Brandon is a researcher and content creator in the fields of cyber-security and virtual privacy. Years of experience enable him to provide readers with important information and adequate solutions for the latest software and malware problems.

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