RansomwareRemoval Guide

X_MISTER Virus Removal Guide (+Decode .Mr-X666 files)

X_MISTER Virus Ransomware

The X_MISTER stands for a ransomware-type infection. X_MISTER was elaborated particularly to encrypt all major file types. As soon as the file is encrypted people are unable to use them. X_MISTER adds the “.Mr-X666” extension for each file encrypted by it. For example, the file “myphoto.jpg“, as soon as encrypted by X_MISTER, will be renamed into “myphoto.jpg.Mr-X666“. As quickly as the encryption is finished, X_MISTER places a special text file into every folder containing the encrypted data.

The message given by X_MISTER text file requesting the ransom is absolutely the like the statements given by other ransomware virus representatives. It actually points out that the info is encrypted and that the only way to restore it is to use a an unique decryption key. Regretfully, this is definitely true. The sort of cryptography mechanism used by X_MISTER is still not appropriately examined. Still, it is definitely particular that each victim might be given the specific decryption key, which is absolutely distinct. It is difficult to bring back the files without the key available.

Another technique of X_MISTER is that the victims cannot access to the key. The key is stored on a specific server run by the frauds associated with X_MISTER ransomware. To get the key and recover the important info people need to pay the ransom.

Nevertheless, irrespective of the asked for amount, people need to stay away from paying the ransom. Cyber frauds are not fair, so they tend to completely ignore what their victims feel about the issue, even when the payment reaches their pockets. This is why paying the ransom usually does not provide any positive result and people just waste their money for absolutely nothing.

We strongly advise that you do not contact these crooks and definitely do not transfer money into their accounts. It is said to admit that there are no utilities able to crack X_MISTER ransomware and to recover the information data free of charge. Thus, the only right decision is to recover the lost information from the available backup.

Virus Summary

NameX_MISTER Ransomware
File Extension.Mr-X666
TypeRansomware
Short DescriptionThe ransomware encrypts all the data stored on your system and requires a ransom to be paid on your part supposedly to recover your important files.
SymptomsFile encryption by the ransomware is performed by means of the AES and RSA encryption algorithms. Once the encryption is completed, the ransomware adds its special Mr-X666 extension to all the files modified by it.
Distribution MethodSpam Emails, Email Attachments
Removal Tool  GridinSoft Anti-Malware

Keep in mind that the web is now overwhelmed with threats that look similar to X_MISTER ransomware. Destructive programs of such kind are normally elaborated to encrypt crucial information and to set forth the demand before the user to pay the ransom. The peculiarity of all such ransomware threats is that all apply a similar algorithm to create the special decryption key for data decryption.

Therefore, as long as the ransomware is still being developed or has some hidden bugs, by hand recovering the information is just not feasible. The only method to prevent the loss of your important information is to frequently create backups of your important information.

Bear in mind that even if you create such backups, they should be placed into a special storage utility not connect to your main computer. You may use the USB Memory Stick or external hard drive for this purpose, or refer to the help of the cloud storage. If you keep your backup files on your common system they may be encrypted in addition to other files, so it’s definitely not a good storage place.

How did ransomware infect my system?

There are numerous ways used by online scams to distribute X_MISTER ransom virus. Despite the fact that it is uncertain how precisely X_MISTER injects your system, there are some leaks through which it may infiltrate the system:

  • integration with third-party apps, especially freeware;
  • spam e-mails from unknown senders;
  • websites rendering free hosting services;
  • pirated peer-to-peer (P2P) downloads.

Often X_MISTER virus might be presented as some legitimate software application, for example, in the pop-ups advising users to carry out some important software updates. This is the typical trick used by online frauds to persuade people into downloading and installing X_MISTER infection manually, by methods of their direct participation in the installation process.

In addition, the criminals might refer to various email spam techniques to inject destructive codes into PC. So, they may refer to to sending unsolicited spam e-mails with tricky notifications promoting users to download the attachments or click on certain download links, for example, the ones motivating users to open some receipts, documents, tax reports or invoices.

Needless to mention, opening such files or clicking on such dangerous links may seriously damage the system. Fictitious Adobe Flash Player upgrade notifies may result in X_MISTER virus injection. As for the cracked software, these illegally downloaded programs may also contain harmful codes leading to X_MISTER secret installation. Lastly, injection of X_MISTER may take place by methods of Trojans that secretly get injected into the system and install harmful utilities without the user’s authorization.

Is there any way to avoid the injection of X_MISTER ransom virus?

Even though there is no 100% guarantee to prevent your computer from getting infected, there are some pieces of suggestions we want to show with you. First of all, be really careful when you surf the web and particularly while downloading complimentary programs. Stay away from opening suspicious email attachments, especially when the sender of the email is not familiar to you.

Bear in mind that some freeware installers may consist of other unwanted utilities in the bundle, so they may be destructive. Make sure that your current antivirus software and your entire operating system is always duly updated.

Of course, downloading pirated software is unlawful and may lead to vital damage to be produced your system. Thus, stay away from downloading cracked software. You are likewise highly recommended to reconsider your existing security software and potentially change to another security solution that can render much better services of protecting your Windows.

Below please find the quotation from the X_MISTER text file:

YOUR FILES ARE ENCRYPTED !!!

TO DECRYPT, FOLLOW THE INSTRUCTIONS:

To recover data you need decrypt tool.

To get the decrypt tool you should:

1.In the letter include your personal ID! Send me this ID in your first email to me!
2.We can give you free test for decrypt few files (NOT VALUE) and assign the price for decryption all files!
3.After we send you instruction how to pay for decrypt tool and after payment you will receive a decryption tool!
4.We can decrypt few files in quality the evidence that we have the decoder.

DO NOT TRY TO DO SOMETHING WITH YOUR FILES BY YOURSELF YOU WILL BRAKE YOUR DATA !!! ONLY WE ARE CAN HELP YOU! CONTACT US:

x_mister@aol.com
x_mister@india.com

ATTENTION !!! THIS IS YOUR PERSONAL ID WHICH YOU HAVE TO SEND IN FIRST LETTER:

Screenshot of files with “.Mr-X666” extension added by the ransomware:X_MISTER Ransomware - encrypt files with .Mr-X666 extension

Use GridinSoft Anti-Malware to remove X_MISTER ransomware from your computer

1.Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

  GridinSoft Anti-Malware

2. Double-click on the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-ag.exe file to install GridinSoft Anti-Malware on your computer.
GridinSoft Anti-Malware
An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.
GridinSoft Anti-Malware Setup

3. Press Install button for run GridinSoft Anti-Malware.

GridinSoft Anti-Malware Install

3.Once installed, GridinSoft Anti-Malware will automatically run.

GridinSoft Anti-Malware Start

4. Wait for the GridinSoft Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your computer for Win Speedup 2018 and other malicious programs. This process can take a 20-30 minutes, so we suggest you periodically check on the status of the scan process.
GridinSoft Anti-Malware Scan

5. Click on “Clean Now”.

When the scan has completed, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.
GridinSoft Anti-Malware Scan Result

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Daniel Zimmermann

Daniel Zimmermann has been writing on security and malware subjects for many years and has been working in the security industry for over 10 years. Daniel was educated at the Saarland University in Saarbrücken, Germany and currently lives in New York.

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