RansomwareRemoval Guide

Remove C0hen Locker Virus (+Decrypt .c0hen files)

C0hen Locker – Ransomware

The C0hen Locker stands for a ransomware-type infection. C0hen Locker was elaborated specifically to encrypt all major file types. As soon as the file is encrypted people are not able to use them. C0hen Locker adds the “.c0hen” extension for each file encrypted by it. For example, the file “myphoto.jpg“, when encrypted by C0hen Locker, will be renamed into “myphoto.jpg.c0hen“. As soon as the encryption is completed, C0hen Locker places a special text file into every folder containing the encrypted data.

The message given by C0hen Locker text file requesting for the ransom is absolutely the same as the statements given by other ransomware representatives. It actually mentions that the information is encrypted which the only way to restore it is to use a an unique decryption key. Sadly, this is definitely true. The type of cryptography mechanism used by C0hen Locker is still not appropriately examined. Still, it is absolutely specific that each victim might be given the specific decryption key, which is completely unique. It is difficult to restore the files without the key available.

Another trick of C0hen Locker is that the victims cannot access to the key. The key is kept on a specific server run by the frauds associated with C0hen Locker ransomware. To get the key and recover the important information people have to pay the ransom.

Nonetheless, regardless of the asked for quantity, people need to stay away from paying the ransom virus. Cyber frauds are not fair, so they tend to entirely ignore what their victims feel about the issue, even when the payment reaches their pockets. This is why paying the ransom usually does not provide any positive outcome and people simply lose their money for nothing.

We strongly recommend that you do not contact these crooks and certainly do not transfer money into their accounts. It is said to admit that there are no utilities able to crack C0hen Locker ransomware and to recover the information data for free. Hence, the just right decision is to recover the lost data from the available backup.

Virus Summary

NameC0hen Locker Ransomware
File Extension.c0hen
TypeRansomware
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 c0hen extension to all the files modified by it.
Distribution MethodSpam Emails, Email Attachments
Decryption key12309482354ab2308597u235fnq30045f
Removal Tool   GridinSoft Anti-Malware

Keep in mind that the internet is now overwhelmed with threats that look similar to C0hen Locker ransomware. Harmful programs of such kind are normally elaborated to encrypt essential data and to state the need before the user to pay the ransom. The peculiarity of all such ransomware threats is that all apply a similar algorithm to generate the unique decryption key for data decryption.

Hence, 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 way to prevent the loss of your important data is to regularly create backups of your important information.

Keep in mind that even if you create such backups, they must be placed into a special storage utility not connect to your main computer. You may use the USB Flash Drive or external disk drive for this purpose, or refer to the help of the cloud storage. If you store your backup files on your common system they may be encrypted in addition to other files, so it’s absolutely not a good storage location.

How did ransomware infect my PC?

There are a number of ways used by online frauds to distribute C0hen Locker ransom virus. Despite the fact that it is uncertain how exactly C0hen Locker injects your computer, there are some leaks through which it may penetrate the system:

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

Typically C0hen Locker virus may exist as some legitimate software, for example, in the pop-ups instructing users to execute some essential software updates. This is the common trick used by online frauds to persuade people into downloading and installing C0hen Locker infection manually, by ways of their direct participation in the installation process.

Additionally, the criminals might refer to various email spam techniques to inject malicious codes into systems. So, they may refer to to sending unsolicited spam emails with tricky notices promoting users to download the attachments or click on certain download links, for example, the ones encouraging users to open some video, files, tax reports or invoices.

Needless to mention, opening such documents or clicking on such dangerous links may severely harm the system. Fictitious Adobe Flash Player update informs may result in C0hen Locker ransom injection. As for the cracked software, these illegally downloaded programs may likewise contain harmful codes resulting in C0hen Locker secret installation. Lastly, injection of C0hen Locker may happen by methods of Trojans that secretly get injected into the system and install destructive tools without the user’s consent.

Is there any method to prevent the injection of C0hen Locker ransomware?

Despite the fact that there is no 100% guarantee to prevent your PC from getting infected, there are some pieces of suggestions we wish to share with with you. Firstly, be extremely mindful when you browse the web and especially 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 contain other unwanted utilities in the package, so they may be harmful. Ensure that your current anti-virus and your entire OS is always duly updated.

Of course, downloading pirated software is unlawful and may result in necessary damage to be produced your system. For this reason, stay away from downloading cracked software. You are likewise highly recommended to reconsider your existing security software and potentially change to another security solution that can render far better services of protecting your PC.

Below please find the quotation from the C0hen Locker text file:

c0hen locker has
infected your PC
Whats happening? 
All devices on your network have been infected
All of your computers files have been encrypted with ransomware
Your computer has been infected. You must do as instructed to get your files back.
Donate 0.15 BTC to this wallet
Or:
Download discord and add c0hen*7722 for decryption key discord com/download
BTC wallet: 18Fh68NJrMZCiTqq1VoWaQsSb8pxDjEw6N

Screenshot of files with “.c0hen” extension added by the ransomware:
C0hen Locker Ransomware - encrypt files with .c0hen extension

Use GridinSoft Anti-Malware to remove C0hen Locker 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

Sending
User Review
0 (0 votes)
Comments Rating 0 (0 reviews)

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.

Related Articles

Leave a Reply

Your email address will not be published. Required fields are marked *

Sending

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Back to top button