Pysa Ransomware

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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Pysa is a file-encrypting ransomware virus that can target more or less any operating system. Pysa encrypts the files on its victims’ computers and thus makes them completely inaccessible to anyone.


Once the Pysa Ransomware has infected you it will start encrypting your files.

In doing so, it in a sense holds the files hostage and then demands that the targeted users transfer a certain amount as ransom in order to regain access to their files. Namely, the hackers promise to send a decryption key, which is what you need in order to effectively decrypt the files. This is an age-old blackmail scheme that has unfortunately enjoyed a major boost in popularity thanks to cryptocurrencies.

As you may have noticed the hackers behind Pysa have requested that they be paid in some form of cryptocurrency. And this is because these currencies offer the shield of anonymity, and that, in turn, implies that no one will be able to track the cyber criminals and bring them to justice. This is one of the main factors that has contributed to making ransomware so incredibly numerous in the last few years.

And while we cannot really offer you any console when it comes to the future of your encrypted data, we can certainly tell you that the ransom payment is not the only option you have. In fact, we would encourage you to try the other alternatives that are available to you before resorting to sending your hard-earned cash to a bunch of criminals. Not only does doing so not guarantee that you will in fact receive a decryption key, but it’s also funding their awful extortionist scheme. Below is a step-by-step removal guide that will show you how to remove Pysa from your system, which is a vital step that you need to take anyway. And in the second part of the guide you will see what suggestions we have regarding the potential restoration of your files.

The Pysa Ransomware

The Pysa virus is infamously tricky to detect as it does not typically have any symptoms that you could be on the lookout for. This allows the Pysa virus to complete its malicious task without facing any interruptions.

This also applies to interruptions on the part of your antivirus system. If you have one installed on your computer, and it’s a fairly decent one at that, then you might be quite furious about the fact that it didn’t notify you about the ongoing infection. And this is yet another one of ransmomware’s annoying advantages over other types of malware. Because it uses encryption, which is in itself a benign process, antivirus software will not do anything to prevent it.

The Pysa file distribution

One of the leading means of distribution for the Pysa file is what is known as malvertisements. The hackers insert the Pysa file in fake online ads, and one click on an infected ad like this is usually all it takes for the attack to take place. Similarly, the ransomware can also be distributed in various other files that can be distributed via spam.


Name Pysa
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 Pysa 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:

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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 Pysa 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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