Ooss Virus


Ooss is a representative of the Ransomware category that can encrypt different user files. The main aim of Ooss is to make victims pay for their encrypted files to be released.

Ooss Virus

The Ooss Virus will show you this message in a _readme.txt file.

On this page, you will find a removal guide will help you to get rid of Ooss if this is what has infected your system. Furthermore, the removal of ransomware like this one is very important since if the virus is running on the machine it will possibly encrypt any new files you want to access or create. Moreover, the ransomware may encrypt even more information, including the data stored on devices that get connected to the compromised computer, such as your smartphone and tablet. If you manage to successfully remove Ooss, however, you will have the chance to safely connect file backup sources and restore your information from external devices, cloud storage or other data storage devices.

The Ooss virus

The Ooss virus is a cryptovirus that specializes in encrypting user data and preventing the owners from accessing it. The criminals behind the Ooss virus typically demand a ransom from the victims and insist on a quick money transfer in order to provide a decryption key.

When the file-encryption process ends, the victims are typically informed that they can get back their encrypted information only if they pay a ransom to a given cryptocurrency account. If the money is transferred, a special decryption key should be given to them. But it’s obviously not a very good idea to trust these promises made by anonymous cyber criminals. The reason is, you can’t tell if the hackers behind the ransomware really want to provide you with a decryption key or if they’re just lying to you. In the second scenario, you will send a substantial amount of money to them without any guarantees about the future of your files and your computer. In addition, the demanded ransom amount may be quite high, which is another reason why it is preferable to search for solutions to remove the infection and restore your data without paying a penny to the crooks behind Ooss.

The Ooss file encryption

The Ooss file encryption is a method that helps criminals to block access to user data and keep it hostage for a ransom. The Ooss file encryption is a stealthy process that runs without visible symptoms in most cases.

The problem with the Ooss encryption is that even after the ransomware has been removed, nothing can guarantee that the encrypted files will be restored to their previous state. The corresponding decryption key is, as described above, the normal way to unlock the encrypted pieces of data. But it may not be possible to always get the key from the hackers, even if you pay the ransom. Therefore, to restore your information, you may need to find other methods. In the second part of our removal guide, you will find some suggestions on that. Keep in mind, though that, in general, it is very difficult to deal with a threat of this kind, particularly when it’s new such as Ooss, Rooe and Alka. Some of your files may still be hard to get back, but if some backups are left on other machines, on an external drive or on cloud storage, this is the time to use them. Just make sure you remove the ransomware first, to prevent it from encrypting your backups.


Name Ooss
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 [banner_table_recovery]
Detection Tool

Ooss Ransomware Removal

Ooss Virus

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).

Ooss Virus


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

Ooss Virus

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

Ooss Virus
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
Ooss VirusClamAV
Ooss VirusAVG AV
Ooss VirusMaldet

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.

Ooss Virus

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:

Ooss Virus

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:

Ooss Virus

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.

Ooss Virus

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!

Ooss Virus 

How to Decrypt Ooss 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!


About the author


Lidia Howler

Lidia is a web content creator with years of experience in the cyber-security sector. She helps readers with articles on malware removal and online security. Her strive for simplicity and well-researched information provides users with easy-to-follow It-related tips and step-by-step tutorials.

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