.Mosk Virus

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This page aims to help you remove The .Mosk Virus for free. Our instructions also cover how any .Mosk file can be recovered.


.Mosk is a Ransomware virus that encrypts all types of files on your computer. When done with this, .Mosk blackmails you, demanding money for a decryption key.


Once the .Mosk Virus has infected your system it will start encrypting your files.

Being attacked by a ransomware virus can turn into a very unpleasant and even traumatic experience. .Mosk is one of the latest viruses of this type, and like so many before it, this ransomware stealthily infiltrates the system of its victim and encrypts the files in it using a very sophisticated algorithm. This makes the files unreadable and inaccessible without a decryption key, or in other words – useless. The cybercriminals behind the infection want to make you believe that the only way to access your files again is to send them money as a ransom for the decryption key they hold. Fortunately, we have alternatives to the ransom payment that won’t cost you a penny and you will find them just below this article.

The Mosk virus

The Mosk virus is an infection based on Ransomware that can block access to digital information through encryption. The Mosk virus can encrypt the files stored inside a computer without warning and demand a ransom payment to decrypt them.

The Mosk Virus is a piece of computer malware that makes the files of the users it attacks inaccessible. After the Mosk Virus locks the targeted data, it makes a ransom payment demand that the victim is supposed to fulfill to restore their files.
Threats like this one are known under the collective name of Ransomware because their goal is always the same – to extort money from the attacked users with the lockdown on their files serving as the needed blackmailing leverage.
The Mosk Virus is a Ransomware version that uses an advanced encryption process to make it impossible for its victims to open their personal files. The Mosk Virus is programmed to display a ransom message on the infected computer’s screen after the encryption.
The ransom message that gets generated after all targeted data has been sealed typically gives the victims strict payment instructions that they are supposed to follow in order to get their files recovered. The problem is that transferring such a payment guarantees nothing – your files may or may not get released by the hackers. This is the main reason we always advise against going for this course of action if you haven’t tried any of the other potential options.
The Mosk virus is a form of malware solely created to extort money from the people it attacks. The hackers behind Mosk Virus, however, don’t really care about whether you eventually manage to recover any of the files that have been locked.

The ransomware infections turn out to be a lucrative scheme for a lot of cyber criminals. Besides, these pieces of malware can prove to be extremely harmful, encrypting valuable information and keeping it locked for indefinite periods of time. So, it’s no wonder that many victims are paying the extortionists sky-high amounts of money in ransom in hopes to get back access to their valuable data.

Sadly, viruses such as .Mosk, .Toec or .Meka are able to bypass most antivirus programs on the market. That is the reason why you probably didn’t even know that a suspicious process was going on inside your system while Mosk was secretly creating encrypted copies of your files. After the encryption process completed, though, you probably received a ransom note on your screen, telling you about the effects of the attack.

The .Mosk file encryption

The .Mosk file encryption is an advanced code that can keep files inaccessible for an indefinite period of time. Decrypting the .Mosk file encryption is only possible with a decryption key which is in the hacker’s hands.

The instructions in the removal guide below, however, are intended to help you remove the virus from your computer and hopefully restore your files from system backups. Of course, the effectiveness of our instructions may vary greatly from case to case, as each ransomware attack is different, but it will not cost you a thing to give them a try. Other alternatives to the ransom payment are to use a decryptor tool. A list of these can be found on our website, so please check it out.

However, while we advise users to try other ways to get their data back, there are serious reasons for not resorting to the ransom payment. The hackers, for instance, might never send you the promised code for decryption. Furthermore, since the file encryption/decryption is a very delicate process, there is a chance that the decryption key may not work properly even if the hackers send it to you. Moreover, as payments are usually requested in bitcoins, which is a cryptocurrency that is notoriously hard to trace, the police have little chance to bring these extorters to justice.  You will only be financing them and ensuring that they are never caught.


Name .Mosk
Type Ransomware
Danger Level High (Ransomware is by far the worst threat you can encounter)
Symptoms Very few and unnoticeable ones before the ransom notification comes up.
Distribution Method From fake ads and fake system requests to spam emails and contagious web pages.
Data Recovery Tool Currently Unavailable
Detection Tool


.Mosk Ransomware Removal


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).



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


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

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: https://howtoremove.guide/online-virus-scanner/

Scan Results

Virus Scanner Result

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.


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:

hosts_opt (1)

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:


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.


To remove parasite, you may have to meddle with system files and registries. Making a mistake and deleting the wrong thing may damage your system.
Avoid this by using SpyHunter - a professional Parasite removal tool.

Keep in mind, SpyHunter’s malware & virus scanner is free. To remove the infection, you'll need to purchase its full version. More information about SpyHunter and steps to uninstall.

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!


How to Decrypt .Mosk 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!


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