Remove Wanna Decrypt0r 4.0 Virus (+Decrypt .WNCRY files) – Jigsaw Ransomware

Wanna Decrypt0r 4.0 – General Info

The Wanna Decrypt0r 4.0 stands for a ransomware-type infection. The virus comes from the Jigsaw ransomware family. Wanna Decrypt0r 4.0 was elaborated particularly to encrypt all major file types. When the file is encrypted people are unable to use them. Wanna Decrypt0r 4.0 adds the “.WNCRY” extension for each file encrypted by it. For example, the file “myphoto.jpg“, when encrypted by Wanna Decrypt0r 4.0, will be renamed into “myphoto.jpg.WNCRY“. As quickly as the encryption is finished, Wanna Decrypt0r 4.0 places a special text file into every folder containing the encrypted data.

The message given by Wanna Decrypt0r 4.0 text file requesting the ransom is definitely the same as the statements given by other ransomware virus representatives coming from the Jigsaw family. It literally discusses that the info is encrypted and that the only way to restore it is to use a a distinct decryption key. Unfortunately, this is definitely true. The sort of cryptography mechanism applied by Wanna Decrypt0r 4.0 is still not appropriately examined. Still, it is absolutely particular that each victim may be given the specific decryption key, which is completely distinct. It is impossible to restore the files without the key available.

Another technique of Wanna Decrypt0r 4.0 is that the victims cannot get to the key. The key is kept on a specific server run by the frauds associated with Wanna Decrypt0r 4.0 ransomware. To get the key and recover the important info people need to pay the ransom.

Nevertheless, regardless of the asked for amount, people should keep away from paying the virus. Cyber frauds are not fair, so they tend to completely ignore what their victims feel about the problem, even when the payment reaches their pockets. This is why paying the ransom typically does not provide any positive outcome and people simply lose their money for absolutely nothing.

We strongly recommend that you do not contact these crooks and absolutely do not transfer money into their accounts. It is said to admit that there are no utilities able to crack Wanna Decrypt0r 4.0 ransomware and to recover the data data free of charge. Thus, the just right decision is to recover the lost information from the available backup.

Virus Summary

NameWanna Decrypt0r 4.0 Ransomware
File Extension.WNCRY
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 WNCRY extension to all the files modified by it.
Distribution MethodSpam Emails, Email Attachments
Similar InfectionsHydra, Jigsaw, Of
Removal Tool   GridinSoft Anti-Malware

Remember that the web is now overwhelmed with threats that look similar to Wanna Decrypt0r 4.0 ransomware. It is similar Hydra and many other ransomware-type threats. Destructive programs of such kind are typically elaborated to encrypt crucial information and to set forth the demand prior to the user to pay the ransom. The peculiarity of all such ransomware threats is that all apply a similar algorithm to produce the unique decryption key for information decryption.

Thus, as long as the ransomware is still being developed or has some hidden bugs, manually recovering the information is just not feasible. The only way to avoid the loss of your crucial files is to regularly create backups of your important information.

Keep in mind that even if you create such backups, they must be put into a special storage utility not connect to your main PC. You may use the Memory Stick or external hard disk for this purpose, or refer to the help of the cloud storage. If you save 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 numerous ways used by online scams to distribute Wanna Decrypt0r 4.0 virus. Although it doubts how precisely Wanna Decrypt0r 4.0 injects your PC, there are some leaks through which it may penetrate the system:

  • integration with third-party apps, especially freeware;
  • spam e-mails from unknown senders;
  • websites rendering free hosting services;
  • pirated peer-to-peer (P2P) downloads.

Frequently Wanna Decrypt0r 4.0 ransomware might exist as some legitimate software, for instance, in the pop-ups advising users to implement some essential software application updates. This is the typical trick used by online frauds to persuade people into downloading and installing Wanna Decrypt0r 4.0 infection manually, by ways of their direct participation in the installation process.

Additionally, the criminals may describe various email spam tactics to inject malicious codes into copmuter. So, they may describe to sending unsolicited spam emails 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 severely harm the PC. Fictitious Adobe Flash Player upgrade alerts may result in Wanna Decrypt0r 4.0 ransom injection. When it comes to the cracked applications, these illegally downloaded programs may also contain harmful codes resulting in Wanna Decrypt0r 4.0 secret installation. Finally, injection of Wanna Decrypt0r 4.0 may happen by methods of Trojans that secretly get injected into the system and install harmful utilities without the user’s consent.

Is there any way to prevent the injection of Wanna Decrypt0r 4.0 ransomware?

Even though there is no 100% guarantee to prevent your system from getting infected, there are some pieces of guidance we wish to share with with you. To start with, be extremely careful when you surf the web and specifically while downloading complimentary 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 bundle, so they may be malicious. Ensure that your current antivirus and your entire OS is always appropriately updated.

Obviously, downloading pirated software is prohibited and may result in essential damage to be produced your system. Hence, 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 much better services of defending your PC.

Below please find the quotation from the Wanna Decrypt0r 4.0 text file:

Wanna Decrypt0r 4.0
Ooops, your files have been encrypted!

What Happened to My Computer?

Attention, please read the following information very carefully.

Your important files, photos, videos, documents, downloads and browsing history are encrypted and locked. They are no longer accessible.

We understand how important your files are, so that is why we have written instructions below in order to restore your files. To access your files again, you will need a custom decryption key which is only generated and provided by us. Your files cannot be recovered without this.

If you seek help from a computer technician, any attempt to move the decryptor will be detected. Subsequently, a computer technician cannot access your files without this decryption key.

Manual removal, restoring/turning your computer off or any attempts to remove the decryptor will result in permanent deletion of your files; these cannot be recovered. A custom decryptor key (that is generated by us) is the only way to access your files again. Furthermore, a portion of your files will be deleted every 60 minutes unless you comply with the below instructions.

Can I Recovery My Files?
We guarantee that you can recover all your files safely and easily. Firstly, you will need to send an email to: with the subject line “Custom Decryption Key” alongside the date in which you got infected. Payment confirmation must be within email. You will receive a response with a custom decryption key which will allow you to access all of your files again.

How Can I Pay?

Payments are only accepted in Bitcoin. For further information on Bitcoin, click on “What is Bitcoin?” to the left. Payments may be negotiable after discussion.

Step 1: Go to or another Bitcoin partner (a list of exchange sites can be found here:
Subsequently, if you already have a Bitcoin wallet, skip to ‘Step 4.’
Step 2: Create an account.
Step 3: Buy Bitcoins for the selected amount below (or negotiable amount).
Step 4: Send $30 worth of Bitcoin to the Bitcoin address below.
For further information on how to send Bitcoin, please watch the following: hxxps://

How can I trust that my files will be restored and that this threat is valid?

To ensure that we are true to our word, we can decrypt 2 files of choice for free; please send this to the above email address. If you do not believe the validity of this threat, we cannot convince you otherwise.

However, you have been warned that your files will be permanently deleted if the decryptor is manually removed, so please tread with caution. We do not want that to happen to you, so please do not take this threat lightly as we understand how important your files are. We guarantee that your files will be safely restored upon payment with no further threat or harm to your computer.
Caution in this variant the servers that check payments are under maintenance, therefore contact us by email if you make a payment

Please, send at least $50 worth of Bitcoin

Check Payment

1 file will be deleted.
View encrypted files
1. What Is Bitcoin?
2. Where can I buy Bitcoin?
3. How do I send Bitcoin?
4. What is WannaCry Ransomware?

Screenshot of files with “.WNCRY” extension added by the ransomware:
Wanna Decrypt0r 4.0 Ransomware - encrypt files with .WNCRY extension

Use GridinSoft Anti-Malware to remove Wanna Decrypt0r 4.0 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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One comment

  1. And how recovery my files encrypted?

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