How to remove OOSS ransomware and decrypt .OOSS files

What is OOSS?

Every day the internet users face a new threat, among them is OOSS ransomware. This virus belongs to the STOP(DJVU) ransomware family, that can be considered as one of the most widespread ones. It includes dangerous viruses, as NCOV, BBOO, ALKA, REPP, NPSG, BTOS, TOPI, REHA, NOSU, PORET and KODC ransomwares. In case of OOSS ransomware, your computer can easily become infected with it. It’s so because of the ways to distribute it. Nowadays, hackers widely use fake installers. Such files are usually shared through various file sharing services and torrent trackers. Sometimes hackers even create websites, that look like original websites of trustful companies. Moreover, criminals sometimes send this virus by email. For this purpose they inject the code of the virus into a regular file. The operating system executes the code of the virus together with the opening of the file. Then the virus infects the Registry and system processes. Then these processes modify file structures and make the files unreadable. The clearest sign of it is “.OOSS” extension. In the end, the virus drops ransom notes, called “_readme.txt”. This note provides victims with the information on how to decrypt the files by paying ransoms. However, it’s the surest way to decrypt your files, but we strongly recommend you not to do it. Hackers can easily deceive you. For this reason we’ve prepared the detailed guide on how to remove OOSS ransomware and decrypt .OOSS files for free!


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Article’s Guide

  1. How to remove OOSS Ransomware from your computer
  2. How to decrypt .OOSS files
  3. Data Recovery
  4. Automated decryption tools
  5. Other software

How to remove OOSS Ransomware from your computer?

We strongly recommend you to use a powerful anti-malware program that has this threat in its database. It will mitigate the risks of the wrong installation, and will remove OOSS ransomware from your computer with all of its leftovers and register files.

Solution for Windows users: our choice is Norton 360 . Norton 360 scans your computer and detects various threats like OOSS, then removes it with all of the related malicious files, folders and registry keys.

Download Norton windows compatible

If you are Mac user, we advise you to use Combo Cleaner.

How to decrypt .OOSS files?

Once you’ve removed the virus, you are probably thinking how to decrypt .OOSS files or at least restore them. Let’s take a look at possible ways of decrypting your data.

Restore .OOSS files with Stellar Data Recovery

Data Recovery

  1. Download and install Data Recovery
  2. Select drives and folders with your files, then click Scan.
  3. Choose all the files in a folder, then press on Restore button.
  4. Manage export location.

Download Stellar Data Recovery

The download is an evaluation version for recovering files. To unlock all features and tools, purchase is required ($49.99-299). By clicking the button you agree to EULA and Privacy Policy. Downloading will start automatically.

Decrypt .OOSS files with other software

Unfortunately, due to the novelty of OOSS ransomware, there are no decryptors that can surely decrypt encrypted files. Still, there is no need to invest in the malicious scheme by paying a ransom. You are able to recover files manually.
You can try to use one of these methods in order to restore your encrypted data manually.

Decrypt .OOSS files with Emsisoft decryptor

This software includes information about more than 100 viruses of STOP(DJVU) family and others. All that you need are two files or some luck. You can freely use it as it distributes free of charge. If it doesn’t work for you, you can use another method.

Restore .OOSS files with Windows Previous Versions

This feature is working on Windows Vista (not Home version), Windows 7 and later versions. Windows keeps copies of files and folders which you can use to restore data on your computer. In order to restore data from Windows Backup, take the following steps:

  1. Open My Computer and search for the folders you want to restore;
  2. Right-click on the folder and choose Restore previous versions option;
  3. The option will show you the list of all the previous copies of the folder;
  4. Select restore date and the option you need: Open, Copy and Restore.

Restore .OOSS files with System Restore

You can always try to use System Restore in order to roll back your system to its condition before infection infiltration. All the Windows versions include this option.

  1. Type restore in the Search tool;
  2. Click on the result;
  3. Choose restore point before the infection infiltration;
  4. Follow the on-screen instructions.

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