How to Remove Mosk Reansomware

How to Remove Mosk Ransomware?

Readers recently started to report the following message being displayed when they boot their computer:


Don’t worry, you can return all your files!
All your files like photos, databases, documents and other important are encrypted with strongest encryption and unique key.
The only method of recovering files is to purchase decrypt tool and unique key for you.
This software will decrypt all your encrypted files.
What guarantees you have?
You can send one of your encrypted file from your PC and we decrypt it for free.
But we can decrypt only 1 file for free. File must not contain valuable information.
You can get and look video overview decrypt tool:
Price of private key and decrypt software is $980.
Discount 50% available if you contact us first 72 hours, that’s price for you is $490.
Please note that you’ll never restore your data without payment.
Check your e-mail “Spam” or “Junk” folder if you don’t get answer more than 6 hours.

To get this software you need write on our e-mail:

Reserve e-mail address to contact us:

Your personal ID:

Mosk is yet another variant of the STOP/DJVU threat. The nasty ransomware uses all manner of trickery to invade your PC. And, then, proceed to corrupt it. The infection uses strong encryption algorithms to lock the files you keep on your PC. That includes archives, documents, pictures, music, videos. Nothing escapes its clutches. The tool appends the ‘.mosk‘ extension, thus solidifying its grip. If you have a photo called ‘prom.jpg,‘ Mosk changes it to ‘prom.jpg.mosk.’ Once that happens, you can no longer access it. The extension renders your data unusable. The ransomware offers you one way to change that, and it’s compliance. It claims that if you follow its demands, it provides you with the means to regain control over your files. The Mosk menace explains that in the ransom note it leaves you, after encryption. It contains an explanation on your current ordeal, and offers instructions to follow. It’s called ‘_readme.txt,’ and you can find it on your Desktop. As well as, in every folder that contains locked files. The note opens with a soothing “Don’t worry, you can return all your files!” It claims that “The only method of recovering files is to purchase decrypt tool and unique key for you.” To get the key, you have to pay a ransom in the size of $980. And, it even tries to sell you on a discount. “Discount 50% available if you contact us first 72 hours, that’s price for you is $490.” Heed experts’ advice, and do NOT pay the ransom. Don’t contact these people. Don’t even reach out to them at all. Complying with these cyber extortionists, leads to nothing positive. Compliance won’t solve your issue.

How did I get infected with?

Mosk ends up on your PC due to deception and finesse. The infection resorts to all manner of trickery, when it comes to infiltration. More often than not, it uses the old but gold invasive methods. Like, pretending to be a fake system or program update. Or, hiding behind freeware, corrupted links, sites or torrents. And, of course, it can resort to spam emails. You get an email that urges you to click a link. Or, download an attachment. It appears to come from a reliable source. Like, a well-known company. DHL, Amazon, PayPal. So, you choose to oblige, and that’s how you get stuck with the Mosk infection. The ransomware preys on your naivety, haste and distraction. It relies on you to be careless. That gives it a chance to slither into your PC, and corrupt it. Don’t oblige. Don’t rush, or discard the importance of due diligence. Always take the time to be thorough, and remember tat caution goes a long way. Even a little extra attention can save you a ton of troubles.

Remove Mosk

Why is Mosk dangerous?

To trust the cyber kidnappers, behind Mosk, is a mistake. Don’t make it. Think about the potential outcomes. If you choose to pay these strangers, what follows? You send them the money, and then what? You wait for them to give you the decryption key, they promised you. But what if they don’t send it? Or, what if they send you a key, but it doesn’t work? Even if they end up giving you the right key, don’t rejoice. The key, you pay for, removes the encryption, not the encryptor. The Mosk cyber menace remains on your PC, ready to strike again. What if it locks everything a mere minute after unlock it? That’s a possibility. After all, you’re dealing with malicious cyber criminals, who extort you for money. Do you think you can trust these people? Don’t! They only care about getting your money. It’s irrelevant to them whether you regain control over your locked files. Don’t allow these data kidnappers to profit off of your fear and naivety. Don’t give into gullibility, and expect them to keep their promises. Don’t be surprised when they break their word. Don’t allow these individuals to make money off of you. Don’t pay them a dime. Don’t comply with their demands. It’s a tough call to make but it’s the right one.

Mosk Removal Instructions

STEP 1: Kill the Malicious Process

STEP 2: Reveal Hidden Files

STEP 3: Locate Startup Location

STEP 4: Recover Mosk Encrypted Files

STEP 1: Stop the malicious process using Windows Task Manager

  • Open your task Manager by pressing CTRL+SHIFT+ESC keys simultaneously
  • Locate the process of the ransomware. Have in mind that this is usually a random generated file.
  • Before you kill the process, type the name on a text document for later reference.


  • Locate any suspicious processes associated with Mosk encryption Virus.
  • Right click on the process
  • Open File Location
  • End Process
  • Delete the directories with the suspicious files.
  • Have in mind that the process can be hiding and very difficult to detect

STEP 2: Reveal Hidden Files

  • Open any folder
  • Click on “Organize” button
  • Choose “Folder and Search Options”
  • Select the “View” tab
  • Select “Show hidden files and folders” option
  • Uncheck “Hide protected operating system files”
  • Click “Apply” and “OK” button

STEP 3: Locate Mosk encryption Virus startup location

  • Once the operating system loads press simultaneously the Windows Logo Button and the R key.


Depending on your OS (x86 or x64) navigate to:

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run] or
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] or

  • and delete the display Name: [RANDOM]

delete backgroundcontainer

  • Then open your explorer and navigate to:

Navigate to your %appdata% folder and delete the executable.

You can alternatively use your msconfig windows program to double check the execution point of the virus. Please, have in mind that the names in your machine might be different as they might be generated randomly, that’s why you should run any professional scanner to identify malicious files.

STEP 4: How to recover encrypted files?

  • Method 1: The first and best method is to restore your data from a recent backup, in case that you have one.

windows system restore

  • Method 2: File Recovery Software – Usually when the ransomware encrypts a file it first makes a copy of it, encrypts the copy, and then deletes the original. Due to this you may try to use file recovery software to recover some of your original files.
  • Method 3: Shadow Volume Copies – As a last resort, you can try to restore your files via Shadow Volume Copies. Open the Shadow Explorer part of the package and choose the Drive you want to recover. Right click on any file you want to restore and click Export on it.

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