How to remove CHCH ransomware and decrypt .chch files

Article’s Guide

  1. What does .chch stand for?
  2. CHCH ransomware encryption process.
  3. How to remove CHCH Ransomware from your computer
  4. How to decrypt .chch files
  5. Data Recovery
  6. Automated decryption tools
  7. Other software

What does .chch stand for?

Nowadays there is a great variety of various viruses. The one of the most dangerous ones is CHCH ransomware. This virus can be classified as a file-encryption ransomware, the aim of which is to prevent a victim from the accessing to the definite file formats. The clearest sign of the infection with CHCH ransomware is so-called extension – .chch. Nowadays hackers use a great variety of ways to spread this virus. The one of the newest is the ScreeConnect. The infected program is installed on a computer and then silently works in the background waiting for the remote commands of the hackers. By means of this soft hackers can easily take full control on your device and if you see ScreenConnect.ClientService.exe process in the Task Manager there is a great risk of being attacked. If your device is already infected, don’t even try to remove CHCH ransomware and decrypt .chch files manually! Every changing of the encrypted files can easily damage them.

CHCH ransomware encryption process.

If CHCH ransomware succeeded to get into the system, it immediately begins the encryption process. This process is divided into 2 steps: at first the virus looks for the files, that can be encrypted and then modifies them. The scanning process occurs in all folders on the hard drive, as it’s necessary to find the most valuable files. In the most cases it attacks various documents, media files, archives and databases, however, it can be easily modified and get the ability to encrypt other formats, like .dll and .exe files. When the files are found, CHCH immediately begins to modify file structures and makes the files unreadable. As the result the files get new extensions – .chch. After it, the virus creates ransom note called READ_ME.TXT the function of which is to force the victim to pay for the decryption services, that the criminals offer. They try to assure the victim, that they can easily decrypt all files after the payment. However, there is no any guarantee they will really do it. Moreover, they can really make the situation much worse. It’s nothing for them to damage your operating system or damage all your data. We strongly recommend you to avoid any contact with the criminals. Specifically for this case, we’ve prepared the detailed guide on how to remove CHCH ransomware and decrypt .chch files.


Your files are encrypted!
All your important data has been encrypted.
To recover data you need decryptor.
To get the decryptor you should:
Send 1 test image or text file
In the letter include your personal ID (look at the end of this document).
We will give you the decrypted file and assign the price for decryption all files
After we send you instruction how to pay for decrypt and after payment you will receive a decryptor and instructions We can decrypt one file in quality the evidence that we have the decoder.
Only can decrypt your files
Do not trust anyone
Do not attempt to remove the program or run the anti-virus tools
Attempts to self-decrypting files will result in the loss of your data
Decoders other users are not compatible with your data, because each user's unique encryption key

How to remove CHCH Ransomware from your computer?

We strongly recommend you to use a powerful anti-malware program that has this threat in its database. It will mitigate the risks of the wrong installation, and will remove CHCH from your computer with all of its leftovers and register files.

Solution for Windows users: our choice is Norton 360 . Norton 360 scans your computer and detects various threats like CHCH, then removes it with all of the related malicious files, folders and registry keys.

Download Norton windows compatible

If you are Mac user, we advise you to use Combo Cleaner.

How to decrypt “.CHCH” files?

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

Restore “.CHCH” files with Data Recovery

Data Recovery

  1. Download and install 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.

Decrypt “.CHCH” files with other software

Unfortunately, due to the novelty of CHCH ransomware, there are no decryptors that can surely decrypt encrypted 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.

Decrypt .CHCH 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.

Restore .CHCH files with Windows Previous Versions

This feature is working on Windows Vista (not Home version), Windows 7 and later versions. 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 .CHCH 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.

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