How to remove KEY0004 ransomware and decrypt “.KEY0004” files

What is KEY0004?

Nowadays, computers are the only way to remember old good days or to perform a job, due to the necessity of isolation. For hackers current situation is a great opportunity to get more money, because the most of humanity spends the time on the internet. So if you faced the fact, that your files have changed their extensions to “.KEY0004” ones, your computer is infected with KEY0004 ransomware. This virus is the new one and it doesn’t belong to any already known file encryption-ransomware family. In the most cases KEY0004 ransomware spreads by the means of various executable files, that can be found on numerous file sharing services and torrent trackers. Hackers also create special fishing web pages by the means of which they make victims to download and install this malicious program. The one more way of distributing it is the fake emails. Hackers often inject the code of the virus into a harmless file, and the code is executed once such a file is opened. It happens because of the various backdoors and bugs of the software and operating system. Once the virus gets into the system, it immediately begins to change files in the Registry and to modify various system processes. Then KEY0004 begins the scanning process. It looks for the files suitable for encryption. If the files were found, KEY0004 ransomware begins to modify their structures to make them unreadable. Then it drops the ransom note called “HOW_TO_RECOVERY_FILES.txt”. Such notes are used by hackers to make their victims pay for the decryption tool. Unfortunately, the surest way to decrypt your data is to get it from criminals, however, they usually deceive their victims. Sometimes they just ignore the victims once they’ve been paid and sometimes they send them more malicious malware instead of the tool. We strongly recommend you not to contact with them, otherwise everything can become much worse. In order to help you we’ve prepared the detailed guide on how to remove KEY0004 ransomware and decrypt “.KEY0004” files.



HOW_TO_RECOVERY_FILES.txt

ALL YOUR FILES ARE ENCRYPTED!
Send 1 test image or text file
giveyoukey@tutanota.com or giveyoukey@cock.li.
In the letter include YOUR ID or 1 infected file!
We will give you the decrypted file and assign the price for decryption all files!
Doesn't try to restore by yourself, You can damage your files!
*ID*

Article’s Guide

  1. How to remove KEY0004 ransomware from your computer
  2. Automatically remove KEY0004 ransomware
  3. Manually remove KEY0004 ransomware
  4. How to decrypt .KEY0004 files
  5. Automatically decrypt .KEY0004 files
  6. Manually decrypt .KEY0004 files
  7. How to prevent ransomware attacks
  8. Remove KEY0004 ransomware and decrypt .KEY0004 files with our help

How to remove KEY0004 ransomware from your computer?

Every day ransomware viruses change as well as their folders, executable files and the processes, which they use. For this reason it’s difficult to detect the virus yourself. That’s why we’ve prepared the detailed guide for you on how to remove KEY0004 ransomware from your computer!


Automatically remove Thana ransomware

We strongly recommend you to use automated solution, as it can scan all the hard drive, ongoing processes and registry keys. It will mitigate the risks of the wrong installation and will definetely remove KEY0004 ransomware from your computer with all of its leftovers and register files. Moreover, it will protect your computer from future attacks.

Our choice is Norton 360 . Norton 360 scans your computer and detects various threats like KEY0004 virus, then removes it with all of the related malicious files, folders and malicious registry keys. Moreover, it has a great variety of other features, like protection from specific ransomware attacks, safe box for your passwords and many other things!



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Manually remove KEY0004 ransomware

This way is not recommended, as it requires strong skills. We don’t bear any responsibility for your actions. We also warn you that you can damage your operating system or data. However, it can be a suitable solution for you.


  1. Open the “Task Manager”
  2. Right click on the “Name” column, add the “Command line”
  3. Find a strange process, the folder of which probably is not suitable for it
  4. Go To the process folder and remove all files
  5. Go to the Registry and remove all keys related to the process
  6. Go to the AppData folder and remove all strange folders, that you can find

How to decrypt .KEY0004 files?

Once you’ve removed the virus, you are probably thinking how to decrypt “.KEY0004” files or at least restore them. Let’s take a look at possible ways of decrypting your data.

Restore .KEY0004 files with Stellar Data Recovery

If you decided to recover your files, we strongly advise you to use only high-quality software, otherwise your data can be corrupted. Our choice is Stellar Data Recovery. This software has proven to be very appreciated by customers, who have faced ransomware problems!


Data Recovery

  1. Download and install Stellar 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.



Other solutions

The services we’ve mentioned in this part also guarantee users, that the encrypted data is unlikely to become damaged. But you should understand, that there is still a risk to corrupt your files.

Decrypt .KEY0004 files with Emsisoft decryptor

This software includes information about more than 100 viruses of STOP(DJVU) family and others. 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.

Decrypt .KEY0004 files with Kaspersky decryptors

Nowadays Kaspresky is one of the world’s leading suppliers of antivirus programs. Recently they started to provide decryption services, that can be very useful in your case. Click here and you will be redirected to the decryption page.

Decrypt .KEY0004 files with Dr. Web decryptors

Dr. Web is one of the oldest companies, which provide antivirus protection. Their decryption system is rather new, but it can help you. Click here and you will be redirected to the decryption page.


Decrypt .KEY0004 files manually

If above mentioned solutions didn’t help to decrypt .KEY0004 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.

Restore .KEY0004 files with Windows Previous Versions

This feature is working on Windows Vista (not Home version), Windows 7, Windows 8 and Windows 10. 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 .KEY0004 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.

How to prevent ransomware attacks?

If you have successfully removed KEY0004 ransomware, you know probably think about the ways how to protect your data from future attacks. The best way is to create backups of your data. We recommend you to use only high-quality products. Our choice here is Stellar Data Recovery. This soft can easily create highly-qualified backups, has a user friendly interface and moreover, it can help you to restore your files! Then you should take under strict control all your internet connections. Some of the ransomware viruses connect to various internet services and can even infect computers that are connected to the same local network. That’s why it’s important to use a strong firewall, that can easily restrict any connection. The best choice is GlassWire. This program has a user friendly interface and it becomes very easy to prevent any ransomware or hacker attack.


Download GlassWire windows compatible

To unlock all features and tools, purchase is required ($49.99-$299). By clicking the button you agree to EULA and Privacy Policy.

If you want to learn out more details about the ways how to prevent ransomware attacks, read our detailed article!



Write us an email

If your case is an unusual one, feel free to write us an email. Fill the form below and wait for our response! We will answer you as soon as possible. The files we need to inspect your case are: executable files of the virus, if it’s possible; examples of the encrypted files; screenshots of your task manager; ransom note; background screen.




CONCLUSION: nowadays, these solutions are the all possible ways to remove KEY0004 ransomware and decrypt “.KEY0004” files. Nowadays the best way to remove it is the Norton 360 . Their specialists improve the scan system and update the databases every day. It helps not only to remove existing problems, but also protects computers from future attacks. If there is a new way to decrypt your files, we will update the article, so stay tuned.

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