Remove C4H Virus (+Decrypt .C4H files) – GlobeImposter Ransomware

C4H – Ransomware

The C4H mean a ransomware-type infection. The virus comes from the GlobeImposter ransomware family. C4H was elaborated particularly to encrypt all major file types. As soon as the file is encrypted people are unable to use them. C4H adds the “.C4H” extension for each file encrypted by it. For example, the file “myphoto.jpg“, when encrypted by C4H, will be renamed into “myphoto.jpg.C4H“. As soon as the encryption is finished, C4H places a special text file into every folder containing the encrypted data.

The message given by C4H text file asking for the ransom is definitely the like the statements given by other ransomware virus representatives coming from the GlobeImposter type. It actually mentions that the information is encrypted which the only way to restore it is to use a a special decryption key. Regretfully, this is absolutely true. The type of cryptography mechanism applied by C4H is still not appropriately examined. Still, it is absolutely certain that each victim may be given the specific decryption key, which is completely distinct. It is difficult to restore the files without the key available.

Another technique of C4H is that the victims cannot access to the key. The key is saved on a particular server run by the frauds associated with C4H ransomware. To get the key and recover the important info people have to pay the ransom.

Nevertheless, irrespective of the asked for amount, people must keep away from paying the ransom. Cyber frauds are not fair, so they tend to completely disregard what their victims feel about the problem, even when the payment reaches their pockets. This is why paying the ransom usually does not give any positive result and people simply lose their money for absolutely nothing.

We strongly recommend that you do not contact these crooks and definitely do not transfer money into their accounts. It is said to admit that there are no utilities able to crack C4H ransomware and to recover the data data for free. Thus, the just best decision is to recover the lost information from the available backup.

Virus Summary

NameC4H Ransomware
File Extension.C4H
TypeRansomware
FamilyGlobeImposter
Short DescriptionThe ransomware encrypts all the data stored on your system and requires a ransom to be paid on your part supposedly to recover your important files.
SymptomsFile encryption by the ransomware is performed by means of the AES and RSA encryption algorithms. Once the encryption is completed, the ransomware adds its special C4H extension to all the files modified by it.
Distribution MethodSpam Emails, Email Attachments
Similar InfectionsKenstuta, Taargo, Taargo
Removal Tool   GridinSoft Anti-Malware

Keep in mind that the world wide web is now overwhelmed with threats that look comparable to C4H ransomware. It is similar Kenstuta and many other ransomware-type threats. Harmful programs of such kind are normally elaborated to encrypt crucial information and to set forth the demand before the user to pay the ransom. The peculiarity of all such ransomware threats is that all apply a comparable algorithm to create the special decryption key for data decryption.

Thus, as long as the ransomware is still being developed or has some hidden bugs, by hand recovering the information is just not feasible. The only method to avoid the loss of your important information is to routinely create backups of your important information.

Bear in mind that even if you create such backups, they need to be placed into a special storage utility not connect to your main PC. You may use the Memory Stick or external disk drive for this purpose, or refer to the help of the cloud storage. If you keep your backup files on your common system they may be encrypted together with other files, so it’s absolutely not a good storage location.

How did ransomware infect my computer?

There are several methods used by online scams to distribute C4H ransomware. Although it doubts how precisely C4H injects your computer, there are some leaks through which it may infiltrate the system:

  • integration with third-party apps, especially freeware;
  • spam emails from unidentified senders;
  • sites rendering free hosting services;
  • pirated peer-to-peer (P2P) downloads.

Often C4H virus might exist as some legitimate software application, for instance, in the pop-ups instructing users to implement some essential software application updates. This is the common trick used by online scams to persuade people into downloading and installing C4H infection manually, by ways of their direct participation in the installation process.

Additionally, the criminals may describe various e-mail spam tactics to inject malicious codes into Windows PC. So, they may refer to to sending unsolicited spam e-mails with tricky notifications promoting users to download the attachments or click on certain download links, for example, the ones encouraging users to open some receipts, documents, tax reports or invoices.

Needless to mention, opening such documents or clicking on such dangerous links may seriously harm the system. Fictitious Adobe Flash Player upgrade alerts may result in C4H ransom injection. As for the cracked software, these illegally downloaded programs may also include malicious codes leading to C4H secret installation. Lastly, injection of C4H may occur by means of Trojans that secretly get injected into the system and install malicious utilities without the user’s permission.

Is there any way to prevent the injection of C4H ransomware?

Despite the fact that there is no 100% guarantee to avoid your system from getting infected, there are some pieces of advice we wish to show with you. To start with, be extremely cautious when you browse the web and particularly while downloading totally free apps. Stay away from opening suspicious email attachments, especially when the sender of the email is not familiar to you.

Keep in mind that some freeware installers may include other unwanted utilities in the package, so they may be malicious. Make sure that your current antivirus and your entire operating system is always appropriately updated.

Naturally, downloading pirated software is unlawful and may lead to vital damage to be produced your PC. For this reason, stay away from downloading cracked software. You are also highly encouraged to reconsider your existing security software and perhaps switch to another security solution that can render better services of protecting your computer.

Below please find the quotation from the C4H text file:

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

Screenshot of files with “.C4H” extension added by the ransomware:
C4H Ransomware - encrypt files with .C4H extension

Use GridinSoft Anti-Malware to remove C4H ransomware from your computer

1.Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

  GridinSoft Anti-Malware

2. Double-click on the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-ag.exe file to install GridinSoft Anti-Malware on your computer.
GridinSoft Anti-Malware
An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.
GridinSoft Anti-Malware Setup

3. Press Install button for run GridinSoft Anti-Malware.

GridinSoft Anti-Malware Install

3.Once installed, GridinSoft Anti-Malware will automatically run.

GridinSoft Anti-Malware  Start

4. Wait for the GridinSoft Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your computer for Win Speedup 2018 and other malicious programs. This process can take a 20-30 minutes, so we suggest you periodically check on the status of the scan process.
GridinSoft Anti-Malware Scan

5. Click on “Clean Now”.

When the scan has completed, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.
GridinSoft Anti-Malware Scan Result

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About Daniel Zimmermann

Daniel Zimmermann has been writing on security and malware subjects for many years and has been working in the security industry for over 10 years. Daniel was educated at the Saarland University in Saarbrücken, Germany and currently lives in New York.

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