THREAT REMOVAL

Remove C4H Ransomware – Restore .C4H Files

C4H Ransomware

The C4H ransomware is a new strain of GlobeImposter threat family. It has been circling around the web for a couple of days. Like a typical ransomware infection, the C4H virus aims to corrupt personal files stored on computer drives and blackmail victims into paying a ransom fee to the cybercriminals who stand behind its nasty attacks. Along with data corruption, lots of system modifications happen on the background of all other running processes. Malicious modifications heavily damage the operating system and interrupt its proper performance. Hence, an infection with C4H ransomware leads to serious system security issues that may be avoided with its complete removal from the system.

c4h ransomware message virus removal guide

In the unfortunate event that you are a victim of the C4H cryptovirus it is recommendable to avoid any negotiations with cybercriminals and consider the help of secure weapons of choice. Keep reading.

Threat Summary

NameC4H ransomware
TypeRansomware, Cryptovirus
Ransom MessageDecryption INFO.html
Short DescriptionSevere malware that is designed to encrypt valualbe files stored on compromised computers so that it can extort a ransom fee from victims.
SymptomsFiles are encrypted and renamed with the extension .C4H
Ransom message extorts a payment for files recovery.
Distribution MethodSpam Emails, Email Attachments
Detection Tool See If Your System Has Been Affected by malware

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User ExperienceJoin Our Forum to Discuss C4H ransomware.
Data Recovery ToolWindows Data Recovery by Stellar Phoenix Notice! This product scans your drive sectors to recover lost files and it may not recover 100% of the encrypted files, but only few of them, depending on the situation and whether or not you have reformatted your drive.

C4H Virus

C4H ransomware is called one of the latest GlobeImposter ransomware variants. Like its predecessors Horriblemorning, CILLA and Tanos the C4H threat is named after its associated malicious extension. The ransomware uses it for marking files it encrypts.

C4H ransomware activates a built-in cipher module for data encryption. This module is designed to scan all drives for commonly used types of files so that it can transform their code. Since the transformation is realized by the usage of a sophisticated algorithm, all corrupted files remain unusable until their code is reverted back to its original state.

The ransomware could encrypt files, which are from the following file types:

  • Audio files
  • Video files
  • Document files
  • Image files
  • Backup files
  • Banking credentials, etc

After the data encryption stage is completed, you are prevented from using your valuable data. As soon as the ransomware transforms the original code of a file, it marks it with the malicious .C4H extension and blocks the access to its data.

Before the encryption phase, the C4H virus accesses certain system components like the Registry Editor and heavily modifies their settings. This way it successfully evades detection and completes several other attack operations.

Since the Registry Editor stores specific low-level commands that control the regular performance of the operating system as well as of some installed applications, C4H ransomware strains may prevent you from using your system in a regular and secure way. Once C4H adds its malicious values under important registry keys like RUN and RUNONCE, it starts misusing their functionalities. As a result, the C4H ransomware could start loading malicious files every time you turn on the infected PC.

At last, C4H ransomware drops a file called Decryption INFO.html on the system and loads it in the default browser. The file contains a specially crafted ransom message that attempts to extort a ransom fee for files’ decryptor. Here is a copy of its text:

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 chinarecoverycompany@cock.li or chinarecoverycompany@airmail.cc.
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 chinarecoverycompany@cock.li or chinarecoverycompany@airmail.cc can decrypt your files
Do not trust anyone chinarecoverycompany@cock.li or chinarecoverycompany@airmail.cc
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

Be advised to refrain from paying hackers the ransom as this action does not guarantee the recovery of your encrypted .C4H files. There is a chance that the code of the threat is full of bugs. Hence, the decrypter won’t be able to recover .C4H files.

Currently, C4H ransomware is released in active attack campaigns against online users worldwide. Popular techniques such as malspam, freeware installers, and corrupted hosts may be used for its spread. Malspam is the technique that is believed to be preferred by hackers. It is realized via massive spam email campaigns. The email messages that are part of such campaigns usually attempt to trick you into downloading the malicious software by presenting it as an important document in a file attachment, a clickable link/button or another interactive element.

Remove C4H ransomware and Restore Data

The so-called C4H ransomware is a threat with highly complex code that heavily damages both essential system settings and valuable data. So the only way to use your infected system securely again is to remove all malicious files and objects created by the ransomware. For the purpose, you could follow our step-by-step removal guide.

In the event that you want to attempt to restore .C4H files with the help of alternative data recovery methods, do check the step – Try to Restore files encrypted by C4H ransomware. We remind you to back up all encrypted files to an external drive before the recovery process.

Gergana Ivanova

Gergana Ivanova

Gergana has a bachelor's degree in Marketing. She has been with the STF team for five years, researching malware, reporting on the latest computer infections, and following digital marketing trends.

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Attention! SensorsTechForum strongly recommends that all malware victims should look for assistance only by reputable sources. Many guides out there claim to offer free recovery and decryption for files encrypted by ransomware viruses. Be advised that some of them may only be after your money.

As a site that has been dedicated to providing free removal instructions for ransomware and malware since 2014, SensorsTechForum’s recommendation is to only pay attention to trustworthy sources.

How to recognize trustworthy sources:

  • Always check "About Us" web page.
  • Profile of the content creator.
  • Make sure that real people are behind the site and not fake names and profiles.
  • Verify Facebook, LinkedIn and Twitter personal profiles.


OFFER

REMOVE IT NOW (PC)
with Anti-Malware
We recommend you to download SpyHunter and run free scan to remove all virus files on your PC. This saves you hours of time and effort compared to doing the removal yourself.
SpyHunter 5 free remover allows you, subject to a 48-hour waiting period, one remediation and removal for results found. Read EULA and Privacy Policy


Windows Mac OS X

How to Remove C4H ransomware from Windows.


Step 1: Boot Your PC In Safe Mode to isolate and remove C4H ransomware

OFFER

Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your PC with SpyHunter

Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter's malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria

1. Hold Windows key() + R


2. The "Run" Window will appear. In it, type "msconfig" and click OK.


3. Go to the "Boot" tab. There select "Safe Boot" and then click "Apply" and "OK".
Tip: Make sure to reverse those changes by unticking Safe Boot after that, because your system will always boot in Safe Boot from now on.


4. When prompted, click on "Restart" to go into Safe Mode.


5. You can recognise Safe Mode by the words written on the corners of your screen.


Step 2: Uninstall C4H ransomware and related software from Windows

Here is a method in few easy steps that should be able to uninstall most programs. No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it. To do that:


1. Hold the Windows Logo Button and "R" on your keyboard. A Pop-up window will appear.


2. In the field type in "appwiz.cpl" and press ENTER.


3. This will open a window with all the programs installed on the PC. Select the program that you want to remove, and press "Uninstall"
Follow the instructions above and you will successfully uninstall most programs.


Step 3: Clean any registries, created by C4H ransomware on your computer.

The usually targeted registries of Windows machines are the following:

  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce

You can access them by opening the Windows registry editor and deleting any values, created by C4H ransomware there. This can happen by following the steps underneath:

1. Open the Run Window again, type "regedit" and click OK.


2. When you open it, you can freely navigate to the Run and RunOnce keys, whose locations are shown above.


3. You can remove the value of the virus by right-clicking on it and removing it.
Tip: To find a virus-created value, you can right-click on it and click "Modify" to see which file it is set to run. If this is the virus file location, remove the value.

IMPORTANT!
Before starting "Step 4", please boot back into Normal mode, in case you are currently in Safe Mode.
This will enable you to install and use SpyHunter 5 successfully.

Step 4: Scan for C4H ransomware with SpyHunter Anti-Malware Tool

1. Click on the "Download" button to proceed to SpyHunter's download page.


It is recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria.


2. After you have installed SpyHunter, wait for it to update automatically.

SpyHunter5-update-2018


3. After the update process has finished, click on the 'Malware/PC Scan' tab. A new window will appear. Click on 'Start Scan'.

SpyHunter5-Free-Scan-2018


4. After SpyHunter has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the 'Next' button.

SpyHunter-5-Free-Scan-Next-2018

If any threats have been removed, it is highly recommended to restart your PC.

Step 5 (Optional): Try to Restore Files Encrypted by C4H ransomware.

Ransomware infections and C4H ransomware aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.

1. Download the reccomended Data Recovery software by clicking on the link underneath:

Simply click on the link and on the website menus on top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.


Windows Mac OS X

Get rid of C4H ransomware from Mac OS X.


Step 1: Uninstall C4H ransomware and remove related files and objects

OFFER
Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your Mac with SpyHunter for Mac
Keep in mind, that SpyHunter for Mac needs to purchased to remove the malware threats. Click on the corresponding links to check SpyHunter’s EULA and Privacy Policy


1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:


2. Find Activity Monitor and double-click it:


3. In the Activity Monitor look for any suspicious processes, belonging or related to C4H ransomware:

Tip: To quit a process completely, choose the “Force Quit” option.


4. Click on the "Go" button again, but this time select Applications. Another way is with the ⇧+⌘+A buttons.


5. In the Applications menu, look for any suspicious app or an app with a name, similar or identical to C4H ransomware. If you find it, right-click on the app and select “Move to Trash”.


6: Select Accounts, after which click on the Login Items preference. Your Mac will then show you a list of items that start automatically when you log in. Look for any suspicious apps identical or similar to C4H ransomware. Check the app you want to stop from running automatically and then select on the Minus (“-“) icon to hide it.


7: Remove any left-over files that might be related to this threat manually by following the sub-steps below:

  • Go to Finder.
  • In the search bar type the name of the app that you want to remove.
  • Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
  • If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.

In case you cannot remove C4H ransomware via Step 1 above:

In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:

Disclaimer! If you are about to tamper with Library files on Mac, be sure to know the name of the virus file, because if you delete the wrong file, it may cause irreversible damage to your MacOS. Continue on your own responsibility!

1: Click on "Go" and Then "Go to Folder" as shown underneath:

2: Type in "/Library/LauchAgents/" and click Ok:

3: Delete all of the virus files that have similar or the same name as C4H ransomware. If you believe there is no such file, do not delete anything.

You can repeat the same procedure with the following other Library directories:

→ ~/Library/LaunchAgents
/Library/LaunchDaemons

Tip: ~ is there on purpose, because it leads to more LaunchAgents.


Click the button below below to download SpyHunter for Mac and scan for C4H ransomware:


Download

SpyHunter for Mac



Step 3 (Optional): Try to Restore Files Encrypted by C4H ransomware.

Ransomware infections and C4H ransomware aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.

1. Download the reccomended Data Recovery software by clicking on the link underneath:

Simply click on the link and on the website menus on top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.


C4H ransomware FAQ

What is C4H ransomware ransomware and how does it work?

C4H ransomware is a ransomware infection - the malicious software that enters your computer silently and blocks either access to the computer itself or encrypt your files.

Many ransomware viruses use sophisticated encryption algorithm how to make your files inaccessible. The goal of ransomware infections is to demand that you pay a ransom payment to get access to your files back.

How does C4H ransomware ransomware infect my computer?

Via several ways.C4H ransomware Ransomware infects computers by being sent via phishing e-mails, containing virus attachment.

This attachment is usually masked as an important document, like an invoice, bank document or even a plane ticket and it looks very convincing to users.

After you download and execute this attachment, a drive-by download occurs and your computer is infected with the ransomware virus.

Another way, you may become a victim of C4H ransomware is if you download a fake installer, crack or patch from a low reputation website or if you click on a virus link. Many users report getting a ransomware infection by downloading torrents.

How to open .C4H ransomware files?

You can't. At this point the .C4H ransomware files are encrypted. You can only open them once they are decrypted.

Decryptor did not decrypt my data. What now?

Do not panic and backup the files. If a decryptor did not decrypt your .C4H ransomware files successfully, then do not despair, because this virus is still new.

One way to restore files, encrypted by C4H ransomware ransomware is to use a decryptor for it. But since it's a new virus, advised that the decryption keys for it may not be out yet and available to the public. We will update this article and keep you posted as soon as this decryptor is released.

How Do I restore ".C4H ransomware" files (Other Methods)?

Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .C4H ransomware files.

These methods are in no way 100% guarantee that you will be able to get your files back. But if you have a backup, your chances of success are much greater.

How do I get rid of C4H ransomware ransomware virus?

The safest way and the most efficient one for the removal of this ransomware infection is the use a professional anti malware software. It will scan for and locate C4H ransomware ransomware and then remove it without causing any additional harm to your important .C4H ransomware files.

Also, keep in mind that viruses like C4H ransomware ransomware also install Trojans and keyloggers that can steal your passwords and accounts. Scanning your computer with an anti-malware software will make sure that all of these virus components are removed and your computer is protected in the future.

What to Do If nothing works?

There is still a lot you can do. If none of the above methods seem to work for you, then try these methods:

  • Try to find a safe computer from where you can can login on your own line accounts like One Drive, iDrive, Google Drive and so on.
  • Try to contact your friends, relatives and other people so that they can check if they have some of your important photos or documents just in case you sent them.
  • Also, check if some of the files that were encrypted it can be re-downloaded from the web.
  • Another clever way to get back some of your files is to find another old computer, a flash drive or even a CD or a DVD where you may have saved your older documents. You might be surprised what will turn up.
  • You can also go to your email account to check if you can send any attachments to other people. Usually what is sent the email is saved on your account and you can re-download it. But most importantly, make sure that this is done from a safe computer and make sure to remove the virus first.

More tips you can find on our forums, where you can also asks any questions about your ransomware problem.

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