Seto Virus Removal (+ .Seto File Recovery)

.seto files

About the .Seto Virus

seto virus
The Seto Virus will drop a _readme.txt file with instructions inside


The following article describes one quite common and highly malicious program called Seto. If you’re wondering, the harmful malware piece we will be talking about is from the extremely harmful Ransomware cryptovirus kind. The typical thing concerning Ransomware is the fact that most malware programs of this type can prevent the user from accessing their own personal files by means of encryption. Right after the encryption process is completed, the PC virus would most likely generate an intimidating ransom-demanding message in which ransom payment is requested to be paid in exchange for a file-decryption key. Usually, within the ransom note, there will also be directions which are supposed to guide the user through the process of making the money transfer. Furthermore, the users are commonly warned that if the demanded ransom doesn’t get paid in time, the hackers would not unlock the affected documents and will destroy the decryption key. If you happen to be among those unlucky users that have had their machine infiltrated by Seto, we recommend that you have a look at the following paragraphs and also try out the Removal Guide down the page.

In order to stand a chance at overcoming malware programs like Seto, Gero, Adame  you must have a good comprehension of how this harmful type of virus works. The way Ransomware programs function is quite unusual for a typical malware virus which makes this type of computer threats even more tricky and challenging to cope with. If a Ransomware gets on your computer, it’d usually issue a system scan, seeking out certain computer file formats. Typically, the Ransomware would be seeking out photos, audios, video clips, and text documents – anything that might turn out to be of importance to the targeted user. After all possible file targets have been found, the malware will begin to make copies of them, deleting the originals after the copies have been created. Although the copies created by the virus are totally intact, they cannot be accessed by the user because they have been locked by a highly-advanced encoding.

The procedure we’ve just explained is known as data encryption and it is the method that Ransomware virus programs, such as Seto, make use of in order to prevent their victims from accessing their own data files and afterward use that as a basis for the blackmailing which follows soon after the procedure gets finished.

The primary issue with the Ransomware computer viruses that utilize file encryption is the fact that a large number of antivirus tools do not consider this kind of procedure as dangerous and do not issue a security warning given that no actual harm is being inflicted upon the computer system. This helps the malware to remain under the radar and to secretly encrypt all the files.

What to do with .seto encrypted files?

.seto files
Encrypted with .seto files


Getting your private data encrypted by .seto means that a choice needs to be made between agreeing to the hacker’s demands and paying them the demanded ransom or making an attempt to take care of the problem in an alternative way. In either case, there is a considerable chance that your data files could continue to be locked-up regardless of what you choose. Nevertheless, we still believe that it really is always a good idea to search for another way of regaining access to the personal data rather than immediately going for the money transaction option. That’s why we suggest you to first make use of the instructions below and only then consider other options.


Name Seto
Type Ransomware
Danger Level High (Ransomware is by far the worst threat you can encounter)
Symptoms Very few and unnoticeable ones before the ransom notification comes up.
Distribution Method From fake ads and fake system requests to spam emails and contagious web pages.








Remove Seto Virus

1: Preparations

Note: Before you go any further, we advise you to bookmark this page or have it open on a separate device such as your smartphone or another PC. Some of the steps might require you to exit your browser on this PC.

2: Task Manager

Press Ctrl + Shift + Esc to enter the Task Manager. Go to the Tab labeled Processes (Details for Win 8/10). Carefully look through the list of processes that are currently active on you PC.

If any of them seems shady, consumes too much RAM/CPU or has some strange description or no description at all, right-click on it, select Open File Location and delete everything there.

Also, even if you do not delete the files, be sure to stop the process by right-clicking on it and selecting End Process.

3: IP related to Seto

Go to c:\windows\system32\drivers\etc\hosts. Open the hosts file with notepad.

Find where it says Localhost and take a look below that. 

hosts_opt (1)

If you see any IP addresses there (below Localhost) send them to us here, in the comments since they might be coming from the Seto.


4: Disable Startup programs

Re-open the Start Menu and type msconfig.

Click on the first search result. In the next window, go to the Startup tab. If you are on Win 10,  it will send you to the Startup part of the task manager instead, as in the picture:

If you see any sketchy/shady looking entries in the list with an unknown manufacturer or a manufacturer name that looks suspicious as there could be a link between them and Seto , disable those programs and select OK.

5: Registry Editor

Press Windows key + R and in the resulting window type regedit.

Now, press Ctrl + F and type the name of the virus.

Delete everything that gets found. If you are not sure about whether to delete something, do not hesitate to ask us in the comments. Keep in mind that if you delete the wrong thing, you might cause all sorts of issues to your PC.

6: Deleting potentially malicious data – Seto

Type each of the following locations in the Windows search box and hit enter to open the locations:






Delete everything you see in Temp linked to Seto RansomwareAbout the other folders, sort their contents by date and delete only the most recent entries. As always, if you are not sure about something, write to us in the comment section.

7: Seto Decryption

The previous steps were all aimed at removing the Seto Ransomware from your PC. However, in order to regain access to your files, you will also need to decrypt them or restore them. For that, we have a separate article with detailed instructions on what you have to do in order to unlock your data. Here is a link to that guide.

Daniel Sadakov has a degree in Information Technology and specializes in web and mobile cyber security. He harbors a strong detestation for anything and everything malicious and has committed his resources and time to battling all manners of web and mobile threats. He has founded, a website dedicated to covering the top tech stories and providing useful tips for the everyday user, in an effort to reach and help more people.
  • In step 5. registry editor in HKEY_CLASSES_ROOT I found .seto with (Default) name, REG_SZ type and in data it says “seto_auto_file”. Should I delete that register?

  • hi there, before I found this article, last night I tried to run malwarebyte n found around 50 trojan viruses, then I deleted it, but my file still in SETO. then I tried reset my pc to factory default, in hope that my file will back, still got no result. then I found this article n give a try the spyhunter n the result found no issues or viruses. is it possible that reset the pc also removed the viruses? if it did, then I should go for decryption my file? sorry for bad English, n thanks for reply if u read this

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