Infected with ViroBotnet Ransomware? Need to decrypt your files?

What is ViroBotnet ransomware

ViroBotnet is another crypto-hijacker, encrypting user data and extorting money for decryption. Like analogs, it encrypts data using an algorithm, which leads to the total inoperability of these files. Moreover, the cryptovirus changes the extension of these files to .enc. It encrypts the most important files for the user, including office documents, video and photo files, audio, multimedia, PDF files, archives and so on. After encryption, the virus creates a special file-note in all folders with encrypted files. This note is called README.txt, here’s how it looks:

ViroBotnet ransomware

Judging by the text, the virus is aimed at French-speaking users, however, judging by the latest data, the virus spread all over the world. Here is the translation of the note into English:
Your personal files have been encrypted. Read the software instructions.

In some cases, ViroBotnet uses the lock screen as a note with requirements.
ViroBotnet ransomware
Vos fichiers personnels ont été chiffré.
Pour les déchiffrer, envoyez 500€ de bitcoins à cette adresse :
Toute tentative de destruction de ce logiciel entraînera la destruction de la clé de déchiffrement.
Toute tentative de déchiffrement avec une clé erronée entraînera la perte définitive de vos fichiers.
Vous avez 72 heures pour effectuer le paiement. Après quoi, la clé de déchiffrement sera supprimée.
Clé de déchiffrement : [...]
[Déchiffrer mes fichiers]

Your personal files have been encrypted.
To decrypt them, send 500 € of bitcoins to this address:
Any attempt to destroy this software will destroy the decryption key.
Any attempt to decrypt with a wrong key will result in the permanent loss of your files.
You have 72 hours to make the payment. After that, the decryption key will be deleted.
Decryption key: [...]
[Decrypt my files]

Scammers require a ransom of 500 euros for decrypting files, and the operation must be done with a crypto currency. Of course, the attackers will not return your files. We do not recommend you pay scammers. Below you can see the possible ways to remove ViroBotnet and decrypt your files.

Update: Use following service to identify the version and type of ransomware you were attacked by: ID Ransomware. If you want to decrypt your files, please follow our instruction below or, if you have any difficulties, please contact us: We really can help to decrypt your files.

How ViroBotnet ransomware infected your PC

For the most part, the penetration of such software is due to the lack of decent anti-virus protection on the computer. In particular, ViroBotnet comes in the form of updates for the Microsoft office, or it can come as an attachment to spam mailing and so on. You need to buy a paid version of the antivirus, which really can protect your PC against such viruses.

First of all, don’t panic. Follow these easy steps below.

1. Start your computer in Safe Mode with networking. To do that, restart your computer before your system starts hit F8 several times. This will stop system from loading and will show Advanced boot options screen. Choose Safe mode with networking option from the options list using up and down arrows on your keyboard and hit Enter.
2. Log in to the system infected with the ViroBotnet ransomware virus. Launch your Internet browser and download a reliable anti-malware program and start a full system scan. Once the scan is complete, review scan results and remove all entries detected.

Recommended Solution:

Norton is a powerful removal tool. It can remove all instances of newest viruses, similar to ViroBotnet ransomware – files, folders, registry keys.


Download Norton*Trial version of Norton provides detection of computer viruses for FREE. To remove malware, you have to purchase the full version of Norton.

You may find more detailed information about antivirus products in our article – Top 5 Antivirus Software for Windows

Restore your files using shadow copies


  1. Download and run Stellar Data Recovery.
  2. Select type of files you want to restore and click Next.
  3. Select the drive and folder where your files are located and date that you want to restore them from and press Scan.
  4. Once the scanning process is done, click Recover to restore your files.
Download Stellar Data Recovery

Step 2: Remove following files and folders of ViroBotnet ransomware:

Related connections or other entries:

No information

Related files:


How to decrypt files infected by ViroBotnet ransomware?

You can try to use manual methods to restore and decrypt your files.

Decrypt files manually

Restore the system using System Restore

system restore

Although latest versions of ViroBotnet ransomware remove system restore files, this method may help you partially restore your files. Give it a try and use standard System Restore to revive your data.

  1. Initiate the search for ‘system restore
  2. Click on the result
  3. Choose the date before the infection appearance
  4. Follow the on-screen instructions

Roll the files back to the previous version

Previous versions can be copies of files and folders created by Windows Backup (if it is active) or copies of files and folders created by System Restore. You can use this feature to restore files and folders that you accidentally modified or deleted, or that were damaged. This feature is available in Windows 7 and later versions.

windows previous versions

  1. Right-click the file and choose Properties
  2. Open the Previous Version tab
  3. Select the latest version and click Copy
  4. Click Restore

Protect your computer from ransomware

hitmanpro alert with cryptoguard

Most modern antiviruses can protect your PC from ransomware and crypto-trojans, but thousands of people still get infected. There are several programs that use different approach t protect from ransomware and lockers. One of the best is HitmanPro.Alert with CryptoGuard. You may already know HitmanPro as famous cloud-based anti-malware scanner. Check out ultimate active protection software from SurfRight.

Download HitmanPro.Alert with CryptoGuard

Written by Rami Douafi

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