How to remove C4H Ransomware

Tips for C4H Ransomware removal

C4H Ransomware is a piece of malware, belongs to GlobeImposter ransomware family. It is discovered by Petrovic. Like other variants of this family, the C4H encrypts stored files and demands ransom payment for the decryption. During the encryption process, it appends the filenames of the encrypted files using .CH4 extension. For example, a file named 1.jpg becomes 1.jpg.CH4. Following to this, the ransomware creates Decryption INFO.html and drops it on each compromised folder.

The ransom note states that the victims’ data have been encrypted. To restore them the appropriate decryption tools must be purchased from the crooks behind C4H Ransomware developers. For the contact, there are two email addresses belong to the crooks mentioned in the note. The victims are asked to send the provided ID number provided to them to the crooks. When contacted, they are likely to provided further information like how much to pay for the decryptor, how to use it and so on. Prior to the payment, they are asked to send 1 encrypted file as a test of the decryptor. The note ends with warnings, altering the users that removing the malware, running antivirus tool and/or attempting manual decryption can result into permanent data loss. Here is the full text presented on the ransom note created by C4H Ransomware:

PERSONAL ID

–

ENGLISH

ALL YOUR FILES AND IMPORTANT DATA ARE ENCRYPTED!

To recover data you need decryptor.

To get the decryptor you should:

Send 1 test image or text file [email protected] or [email protected].

In the letter include your personal ID (look at the beginning 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.

Attention!

Only [email protected] or [email protected] can decrypt your files

Do not trust anyone [email protected] or [email protected]

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

Unfortunately, in many cases of ransomware infections, without interference of the cyber criminals responsible – decryption is impossible. It may be, if the malicious program has significant bugs/flaws and/or is still in development. Regardless of the circumstances, it is highly recommended you not to pay/contact to the crooks. These people will never provide you the decryptor even if you fulfil all their demands. In other word, you will suffer financial loss and will have the files remained in the encrypted form. Therefore, you should use some data recovery alternatives.

The safest option is to remove C4H Ransomware and recover the files using existing backup. The malware is necessary in order to prevent it from further files encryption and avoid more severe risks –such as data stealing and additional malware injection. After the malware removal, restore the files using backup file you have. If you not have any such files, you should use data recovery tools. Nowadays, such tools are designed with special functionality added and so you can anticipate the data recovery using them.

Threat Summary

Type: Ransomware

Extension: .CH4

Ransom demanding message: Decryption INFO.html

Cybercriminals’ contact: [email protected] and [email protected]

Symptoms: Files cannot be opened, the previously functional files appear with different extension name and a ransom note appear asking for ransom payment demands for the data decryption

Distribution: Spam emails, software cracks and updating tools

Removal: Use some reputable antivirus tool to automatically remove C4H Ransomware from the system

Files recovery: Use existing backup for the data restoration. If you do not have such tools, use data recovery tool provided below the post. Such tools are designed nowadays with special functionality added and so you can anticipate of the data recovery using such. Tips on avoiding ransomware infections

Tips on avoiding ransomware infections

Ransomware viruses are distributed using various methods. The most common of them being include spam email campaigns, untrustworthy channels, fake software updates and software cracks. Thus, it is very important to you to be more careful during web browsing:

• Use only official websites and direct links for any software download
• Avoid software cracks or pirated apps
• Protect all the accounts with some complex passwords if you are using Remote Desktop Connection
• Use the default TCP port 3389 and employ VPN connection
• Update the installed apps along with the operating system with the patched ones
• Avoid clicking on any attachments provided on the emails that are irrelevant and suspicious
• Employ some antivirus tool that provides real time protection to the device

Remove C4H Ransomware

Manual malware removal guide is provided below in step by step manner. Follow it so that you will not find any trouble during removal process. You can use some reputable antivirus tool to automatically remove C4H Ransomware from the device.

Antimalware Details And User Guide

Click Here For Windows

Click Here For Mac

Step 1: Remove C4H Ransomware through “Safe Mode with Networking”

Step 2: Delete C4H Ransomware using “System Restore”

Step 1: Remove C4H Ransomware through “Safe Mode with Networking”

For Windows XP and Windows 7 users: Boot the PC in “Safe Mode”. Click on “Start” option and continuously press on F8 during the start process until the “Windows Advanced Option” menu appears on the screen. Choose “Safe Mode with Networking” from the list.

Now, a windows homescreen appears on the desktop and work-station is now working on “Safe mode with networking”.

For Windows 8 Users: Go to the “Start Screen”. In the search results select settings, type “Advanced”. In the “General PC Settings” option, choose “Advanced startup” option. Again, click on the “Restart Now” option. The work-station boots to “Advanced Startup Option Menu”. Press on “Troubleshoot” and then “Advanced options” button. In the “Advanced Option Screen”, press on “Startup Settings”. Again, click on “Restart” button. The work-station will now restart in to the “Startup Setting” screen. Next is to press F5 to boot in Safe Mode in Networking.

For Windows 10 Users: Press on Windows logo and on the “Power” icon. In the newly opened menu, choose “Restart” while continuously holding “Shift” button on the keyboard. In the new open “Choose an option” window, click on “Troubleshoot” and then on the “Advanced Options”. Select “Startup Settings” and press on “Restart”. In the next window, click on “F5” button on the key-board.

Step 2: Delete C4H Ransomware using “System Restore”

Log-in to the account infected with C4H Ransomware. Open the browser and download a legitimate anti-malware tool. Do a full System scanning. Remove all the malicious detected entries.

In case if you cannot start the PC in “Safe Mode with Networking”, Try using “System Restore”

• During the “Startup”, continuously press on F8 key until the “Advanced Option” menu appears. From the list, choose “Safe Mode with Command Prompt” and then press “Enter”

• In the new opened command prompt, enter “cd restore” and then press “Enter”.

• Type: rstrui.exe and Press “ENTER”

• Click “Next” on the new windows

• Choose any of the “Restore Points” and click on “Next”. (This step will restore the work-station to its earlier time and date prior to C4H Ransomware infiltration in the PC.

• In the newly opened windows, press on “Yes”.

Once your PC gets restored to its previous date and time, download the recommended anti-malware tool and perform a deep scanning in order to remove C4H Ransomware files if they left in the work-station.

In order to restore the each (separate) file by this ransomware, use “Windows Previous Version” feature. This method is effective when “System Restore Function” is enabled in the work-station.

Important Note: Some variants of C4H Ransomware delete the “Shadow Volume Copies” as well hence this feature may not work all the time and is applicable for selective computers only.

How to Restore Individual Encrypted File:

In order to restore a single file, right click on it and go to “Properties”. Select “Previous Version” tab. Select a “Restore Point” and click on “Restore” option.

In order to access the files encrypted by C4H Ransomware, you can also try using “Shadow Explorer”. In order to get more information on this application, press here.

Important: Data Encryption Ransomware are highly dangerous and it is always better that you take precautions to avoid its attack on your work-station. It is advised to use a powerful anti-malware tool in order to get protection in real-time. With this help of “SpyHunter”, “group policy objects” are implanted in the registries in order to block harmful infections like C4H Ransomware.

Also, In Windows 10, you get a very unique feature called “Fall Creators Update” that offer “Controlled Folder Access” feature in order to block any kind of encryption to the files. With the help of this feature, any files stored in the locations such as “Documents”, “Pictures”, “Music”, “Videos”, “Favorites” and “Desktop” folders are safe by default.

It is very important that you install this “Windows 10 Fall Creators Update” in your PC to protect your important files and data from ransomware encryption. The more information on how to get this update and add an additional protection form rnasomware attack has been discussed here.

How to Recover the Files Encrypted by C4H Ransomware?

Till now, you would have understood that what had happed to your personal files that got encrypted and how you can remove the scripts and payloads associated with C4H Ransomware in order to protect your personal files that has not been damaged or encrypted until now. In order to retrieve the locked files, the depth information related to “System Restore” and “Shadow Volume Copies” has already been discussed earlier. However, in case if you are still unable to access the encrypted files then you can try using a data recovery tool.

Use of Data Recovery Tool

This step is for all those victims who have already tries all the above mentioned process but didn’t find any solution. Also it is important that you are able to access the PC and can install any software. The data recovery tool works on the basis of System scanning and recovery algorithm. It searches the System partitions in order to locate the original files which were deleted, corrupted or damaged by the malware. Remember that you must not re-install the Windows OS otherwise the “previous” copies will get deleted permanently. You have to clean the work-station at first and remove C4H Ransomware infection. Leave the locked files as it is and follow the steps mentioned below.

Step1: Download the software in the work-station by clicking on the “Download” button below.

Step2: Execute the installer by clicking on downloaded files.

Step3: A license agreement page appears on the screen. Click on “Accept” to agree with its terms and use. Follow the on-screen instruction as mentioned and click on “Finish” button.

Step4: Once the installation gets completed, the program gets executed automatically. In the newly opened interface, select the file types that you want to recover and click on “Next”.

Step5: You can select the “Drives” on which you want the software to run and execute the recovery process. Next is to click on the “Scan” button.

Step6: Based on drive you select for scanning, the restore process begins. The whole process may take time depending on the volume of the selected drive and number of files. Once the process gets completed, a data explorer appears on the screen with preview of that data that is to be recovered. Select the files that you want to restore.

Step7. Next is to locate the location where you want to saver the recovered files.