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.
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
| Name | C4H ransomware |
| Type | Ransomware, Cryptovirus |
| Ransom Message | Decryption INFO.html |
| Short Description | Severe malware that is designed to encrypt valualbe files stored on compromised computers so that it can extort a ransom fee from victims. |
| Symptoms | Files are encrypted and renamed with the extension .C4H Ransom message extorts a payment for files recovery. |
| Distribution Method | Spam Emails, Email Attachments |
| Detection Tool |
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Malware Removal Tool
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User Experience | Join Our Forum to Discuss C4H ransomware. |
| Data Recovery Tool | Windows 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
Highly motivated writer with 5+ years of experience writing for ransomware, malware, adware, PUPs, and other cybersecurity-related issues. As a writer, I strive to create content that is based on thorough technical research. I find joy in the process of creating articles that are easy to understand, informative, and useful. Follow me on Twitter (@IRGergana) for the latest in the field of computer, mobile, and online security.
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Step 1: Scan for C4H ransomware with SpyHunter Anti-Malware Tool
Ransomware Automatic Removal - Video Guide
Step 2: Uninstall C4H ransomware and related malware 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:
Follow the instructions above and you will successfully delete most unwanted and malicious 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:
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.
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: Boot Your PC In Safe Mode to isolate and remove C4H ransomware
Step 5: Try to Restore Files Encrypted by C4H ransomware.
Method 1: Use STOP Decrypter by Emsisoft.
Not all variants of this ransomware can be decrypted for free, but we have added the decryptor used by researchers that is often updated with the variants which become eventually decrypted. You can try and decrypt your files using the instructions below, but if they do not work, then unfortunately your variant of the ransomware virus is not decryptable.
Follow the instructions below to use the Emsisoft decrypter and decrypt your files for free. You can download the Emsisoft decryption tool linked here and then follow the steps provided below:
1 Right-click on the decrypter and click on Run as Administrator as shown below:
2. Agree with the license terms:
3. Click on "Add Folder" and then add the folders where you want files decrypted as shown underneath:
4. Click on "Decrypt" and wait for your files to be decoded.
Note: Credit for the decryptor goes to Emsisoft researchers who have made the breakthrough with this virus.
Method 2: Use data recovery software
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.
Simply click on the link and on the website menus on the 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?
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 algorithms 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.
What Does C4H ransomware Ransomware Do?
Ransomware in general is a malicious software that is designed to block access to your computer or files until a ransom is paid.
Ransomware viruses can also damage your system, corrupt data and delete files, resulting in the permanent loss of important files.
How Does C4H ransomware Infect?
Via several ways.C4H ransomware Ransomware infects computers by being sent via phishing emails, 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.
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 without a decryptor. At this point, the .C4H ransomware files are encrypted. You can only open them once they are decrypted using a specific decryption key for the particular algorithm.
What to Do If a Decryptor Does Not Work?
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.
Can I Restore ".C4H ransomware" Files?
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% guaranteed that you will be able to get your files back. But if you have a backup, your chances of success are much greater.
How To Get Rid of C4H ransomware Virus?
The safest way and the most efficient one for the removal of this ransomware infection is the use a professional anti-malware program.
It will scan for and locate C4H ransomware ransomware and then remove it without causing any additional harm to your important .C4H ransomware files.
Can I Report Ransomware to Authorities?
In case your computer got infected with a ransomware infection, you can report it to the local Police departments. It can help authorities worldwide track and determine the perpetrators behind the virus that has infected your computer.
Below, we have prepared a list with government websites, where you can file a report in case you are a victim of a cybercrime:
Cyber-security authorities, responsible for handling ransomware attack reports in different regions all over the world:
Germany - Offizielles Portal der deutschen Polizei
United States - IC3 Internet Crime Complaint Centre
United Kingdom - Action Fraud Police
France - Ministère de l'Intérieur
Italy - Polizia Di Stato
Spain - Policía Nacional
Netherlands - Politie
Poland - Policja
Portugal - Polícia Judiciária
Greece - Cyber Crime Unit (Hellenic Police)
India - Mumbai Police - CyberCrime Investigation Cell
Australia - Australian High Tech Crime Center
Reports may be responded to in different timeframes, depending on your local authorities.
Can You Stop Ransomware from Encrypting Your Files?
Yes, you can prevent ransomware. The best way to do this is to ensure your computer system is updated with the latest security patches, use a reputable anti-malware program and firewall, backup your important files frequently, and avoid clicking on malicious links or downloading unknown files.
Can C4H ransomware Ransomware Steal Your Data?
Yes, in most cases ransomware will steal your information. It is a form of malware that steals data from a user's computer, encrypts it, and then demands a ransom in order to decrypt it.
In many cases, the malware authors or attackers will threaten to delete the data or publish it online unless the ransom is paid.
Can Ransomware Infect WiFi?
Yes, ransomware can infect WiFi networks, as malicious actors can use it to gain control of the network, steal confidential data, and lock out users. If a ransomware attack is successful, it could lead to a loss of service and/or data, and in some cases, financial losses.
Should I Pay Ransomware?
No, you should not pay ransomware extortionists. Paying them only encourages criminals and does not guarantee that the files or data will be restored. The better approach is to have a secure backup of important data and be vigilant about security in the first place.
What Happens If I Don't Pay Ransom?
If you don't pay the ransom, the hackers may still have access to your computer, data, or files and may continue to threaten to expose or delete them, or even use them to commit cybercrimes. In some cases, they may even continue to demand additional ransom payments.
Can a Ransomware Attack Be Detected?
Yes, ransomware can be detected. Anti-malware software and other advanced security tools can detect ransomware and alert the user when it is present on a machine.
It is important to stay up-to-date on the latest security measures and to keep security software updated to ensure ransomware can be detected and prevented.
Do Ransomware Criminals Get Caught?
Yes, ransomware criminals do get caught. Law enforcement agencies, such as the FBI, Interpol and others have been successful in tracking down and prosecuting ransomware criminals in the US and other countries. As ransomware threats continue to increase, so does the enforcement activity.
About the C4H ransomware Research
The content we publish on SensorsTechForum.com, this C4H ransomware how-to removal guide included, is the outcome of extensive research, hard work and our team’s devotion to help you remove the specific malware and restore your encrypted files.
How did we conduct the research on this ransomware?
Our research is based on an independent investigation. We are in contact with independent security researchers, and as such, we receive daily updates on the latest malware and ransomware definitions.
Furthermore, the research behind the C4H ransomware ransomware threat is backed with VirusTotal and the NoMoreRansom project.
To better understand the ransomware threat, please refer to the following articles which provide knowledgeable details.
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