Guesswho Virus

The encrypted files may not be the only damage done to you. parasite may still be hiding on your PC. To determine whether you've been infected with ransomware, we recommend downloading SpyHunter.

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Guesswho is complex malware used primarily to keep a user from accessing their important information. The ultimate goal of Guesswho is to extort money from its victims by encoding their most used files and demanding a ransom payment for their decryption.


The Guesswho Virus will encrypt your files

A decryption key consisting of a private and a public code is the only way to decrypt the files that Guesswho has encrypted. Once the encryption process ends, the public code is given instantly. However, in order to obtain the private code of the decryption key, the victim must pay a ransom. If not, the hackers typically threaten to permanently erase the affected data or double the required ransom amount. If you have become a victim of Guesswho, you are not dealing with a regular virus but with a very sophisticated Ransomware infection. Therefore, the methods you should use to combat it should also be carefully selected. Moreover, unless you remove Guesswho from your computer, you most likely will be unable to create and store new files without them being encrypted instantly. That’s why we suggest you study the information below and make an informed decision on what to do next.

The Guesswho virus

The Guesswho virus is a file-encrypting Ransomware designed to encode user data and keep it hostage for a ransom. The goal of the Guesswho virus is to make its victims pay a fixed amount of money to some anonymous cyber criminals for the restoration of the encrypted files.

Ransom-demanding threats such as Guesswho could be distributed in several ways: by drive-by downloads, websites corrupted by malware, false notifications, malicious advertisements, infected torrents, video streaming pages, spam emails and even attachments that may come from a friend.

The Guesswho file encryption

The Guesswho file encryption is a stealthy process initiated by the Guesswho Ransomware. The purpose of the Guesswho file encryption is to convert the users’ files into unreadable bits of data so that a ransom can be demanded for their decryption.

Unfortunately, the Guesswho file encryption is not easily reversed. The decryption normally should be done using a special key that comprises of two elements – one public (accessible instantly) and one private, for which the victims are required to pay a ransom. If your files have been locked by Guesswho, you may think it’s wise to simply pay the ransom. However, this is a dangerous option that puts at risk your money without a guarantee that your files will really be recovered. In the end, the crooks behind the Ransomware may disappear without sending you the private decryption key and you won’t be able to do anything to get your money or your files back.

Advising a professional, therefore, is a much cleverer idea. A person with some experience with such viruses may be extremely helpful and may be just what you need to successfully fight the Guesswho infection. In reality, however, contacting a professional may also be costly. Therefore, one of the most easily available alternatives is to use a free removal guide (like the one below) and try to remove the infection on your own. The removal of this virus will prevent you from facing additional malicious actions from criminals. Restoring your files, however, may require some additional steps. You can use the guidelines here in order to delete the virus and try to retrieve some of your data as well.


Name Guesswho
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.
Data Recovery Tool Currently Unavailable
Detection Tool

Remove Guesswho Ransomware


Some of the steps will likely require you to exit the page. Bookmark it for later reference.

Reboot in Safe Mode (use this guide if you don’t know how to do it).



We get asked this a lot, so we are putting it here: Removing parasite manually may take hours and damage your system in the process. We recommend downloading SpyHunter to see if it can detect parasite files for you.

Press CTRL + SHIFT + ESC at the same time and go to the Processes Tab. Try to determine which processes are dangerous. 


Right click on each of them and select Open File Location. Then scan the files with our free online virus scanner:

Drag and Drop Files Here to Scan
Maximum file size: 128MB.

This scanner is free and will always remain free for our website's users. You can find its full-page version at: https://howtoremove.guide/online-virus-scanner/

Scan Results

Virus Scanner Result

After you open their folder, end the processes that are infected, then delete their folders. 

Note: If you are sure something is part of the infection – delete it, even if the scanner doesn’t flag it. No anti-virus program can detect all infections.


Hold the Start Key and R –  copy + paste the following and click OK:

notepad %windir%/system32/Drivers/etc/hosts

A new file will open. If you are hacked, there will be a bunch of other IPs connected to you at the bottom. Look at the image below:

hosts_opt (1)

If there are suspicious IPs below “Localhost” – write to us in the comments.

Type msconfig in the search field and hit enter. A window will pop-up:


Go in Startup —> Uncheck entries that have “Unknown” as Manufacturer.

  • Please note that ransomware may even include a fake Manufacturer name to its process. Make sure you check out every process here is legitimate.


To remove parasite on your own, you may have to meddle with system files and registries. If you were to do this, you need to be extremely careful, because you may damage your system.

If you want to avoid the risk, we recommend downloading SpyHunter
a professional malware removal tool.

More information on SpyHunter, steps to uninstallEULAThreat Assessment Criteria, and Privacy Policy.

Type Regedit in the windows search field and press EnterOnce inside, press CTRL and F together and type the virus’s Name. 

Search for the ransomware  in your registries and delete the entries. Be extremely careful –  you can damage your system if you delete entries not related to the ransomware.

Type each of the following in the Windows Search Field:

  1. %AppData%
  2. %LocalAppData%
  3. %ProgramData%
  4. %WinDir%
  5. %Temp%

Delete everything in Temp. The rest just check out for anything recently added. Remember to leave us a comment if you run into any trouble!


How to Decrypt Guesswho files

We have a comprehensive (and daily updated) guide on how to decrypt your files. Check it out here.

If the guide doesn’t help, download the anti-virus program we recommended or try our free online virus scanner. Also, you can always ask us in the comments for help!

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