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The Seto Virus Ransomware: How to Recover Encrypted Files & Remove Seto Virus (FREE Guide)

Ian Lexner
Question asked by:

Amy S.


My files are encrypted in .seto and I can't open them...

All my files in my documents folder are now with .seto extension and I can't remove it or open the files... How can I fix this?

Solved issue
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How to Remove .Seto

An Overview of the Problem

Seto ransomware is one of the many malicious programs that belong to the Djvu family. The Seto ransomware are added into one’s computer through emails, Trojans, unofficial software updates and activation tools, or dubious file/software download channels. The Seto virus is a Ransomware, Crypto Virus, Files locker type. When your computer is infected with the Seto virus, it limits you to multiple functions including opening files with “my.docx.locked” or blocks your access to your files. The extension .seto will be added after the file name. For example, “sample.jpg” becomes “sample.jpg.seto”

Moreover, there are other things that the virus does to your computer when infected. These changes include modifications to Windows registry, internet connection options, system certificates, permissions, and kernel functions. It also changes the “shadow volume copies” which makes automatic recovery settings difficult to run.

Types of Seto Encryption: Symmetric vs Asymmetric Encryption

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Encryption is essential in keeping private information secure which includes your personally identifiable information (PII), financial data, intellectual property, and other sensitive data. The two types of encryption: symmetric and asymmetric both help in securing data, but the process is different.

In Symmetric encryption, one key is needed by all communicating parties to encrypt and decrypt the data. On the other hand, asymmetric involves using multiple keys to encrypt and decrypt data. Also, Symmetric encryption has a secret key which hackers have access to it, while asymmetric uses a public key.

Removal Process of the Problem (Seto Ransomware) for Seamless File Recovery

For the files to be fully recovered, you need to remove the Seto ransomware in your computer’s system. There is a way for the Seto virus to apply various settings changes in the system to make itself boot at startup. With that said, it is necessary to delete the malware in the system before retrieving the data in order to start clean with the files and system.

For easy removal, there are a lot of malware removal tools in the line, which could help you with the problem — Malwarebytes is one of them. However, Seto uses numerous courses to infiltrate vulnerable computer systems. Once you have installed an anti-malware, start a full system scan. Another tip, it is best to remove the virus while your computer is on a safe mode with networking.

To activate safe mode, here are a few steps to follow:

  1. Go to settings. To do so, right-click on Start button
  2. Find the Update & Security menu and then click Recovery
  3. You will see options whether to reset this PC or restart now. Click Restart now. After clicking the restart button, your computer will automatically restart
safe mode windows recovery

When your computer runs again after the restart, there will be options of what to do next you will see Choose an option on the screen.

  1. Go to Troubleshoot
  2. Click Advanced options
  3. Select the Startup Settings
  4. Hit the Restart button
  5. Press F5 in order to activate Safe Mode with Networking
Safe mode with networking

Using Data Recovery Pro to recover files

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After you are done with the steps above, you are now ready to recover the files encrypted with ransomware. You will need file recovery software to help in the process in an easier way. First, download the Data Recovery Pro and install it on your computer. Now that you are all set for the recovery method, follow these steps:

  1. Open the software by hitting double click on the Data Recovery Pro shortcut
  2. Perform a scan by selecting the full scan option and then click Start
  3. If the scan is complete, you will see a list of files. Select the files you want to recover
  4. With the files in checkmarks, you can now recover them by clicking the Recover button

Using ShadowExplorer to Recover Files

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Since the Seto ransomware is a virus whose purpose is to delete the files stored in the Windows backup system, you will need to fix it to recover encrypted files set by Seto ransomware. In order to do this, you have to download and install the ShadowExplorer.

Follow these steps to recover your files:

  1. Install and setup the ShadowExplorer
  2. Open the application
  3. In the Window panel, you will see a list of files
  4. Select a file that you want to recover
  5. Right-click to enable the export option. Click export

Use the Windows Previous Versions Feature

If you are thinking of other methods to recover lost files, there is one more. Just restore previous versions of the folder you lost to the SETO virus.

  1. Go to the folder in a window panel
  2. Right-click the folder or file that you want to restore (The list will include files saved on a backup)
  3. Click previous version before you select the “Restore” button

Protect and Backup Your Files

To prevent the occurrence of the same issue or to prevent your files to be completely removed and hacked, keep in mind to backup files for later use. Computer users can suffer from data losses due to cyber infections or their own faulty doings. Ransomware can encrypt and hold files hostage. It is best to take precautions and safety measures. It comes in handy when malware strikes out of nowhere.

That’s why we always recommend having reliable anti-malware software such as Malwarebytes installed.

About the author
Ian Lexner photo
Ian Lexner - PC & Mac repair expert
Ian is the editor on He has been involved with PCs since he was a teenager. He has experience in software development, computer hardware, virus removals & other security stuff. Currently, his main job and hobby, at the same time, is to help others to deal with various computer-related issues. Whether it's viruses, spyware, all sorts of errors and "bugs" -- Ian and are here to help.


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It is available for FREE. Although, for some more advanced features & 100% effective fixes you may need to purchase a full license.

If your SETO ransomware issue is still not fixed — don’t hesitate and contact us via email, or a Facebook messenger (the blue ‘bubble’ on the bottom-right of your screen).

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