Oori Virus

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*Oori is a variant of Stop/DJVU. Source of claim SH can remove it.


Oori is a malicious ransomware infection that can hack into your device, browse through all of your drives and disks and determine which files you access most frequently. After that, Oori can encrypt those files and demand a ransom from you.

The Oori ransomware will leave a _readme.txt file with instructions

Ransomware’s general description represents harmful software that blocks access to your mobile or tablet screen, your laptop or desktop, or the files stored therein. Oori, in particular, targets different system components and personal user files and can lead to significant data loss for its victims. Such a program infects your computer usually automatically, which means it will secretly creep into your PC and do whatever it has been programmed to without showing you any signs or symptoms. After the process is over and all your files become encrypted, the ransomware will inform you about its presence in the system by displaying a warning message on your screen. That message will typically tell you which files have been encrypted and what you will have to do to decrypt them. A ransom will normally be demanded in exchange for receiving a special decryption key from the hackers. However, not paying the ransom and having Oori removed is an option that many web users may seek, and in the next lines, we will tell you more about it.

The Oori virus

The Oori virus is an extortionist infection of the ransomware type that seeks to blackmail web users. The Oori virus asks for a fixed ransom payment in exchange for restoring access to its own data.

Oori virus
The Oori virus will encrypt your files

Ransomware can be divided into various sub-types, but not all of them affect the system in the same way. The viruses that target your computer’s screen do nothing to your information, but they can create a full-screen warning that renders you unable to access anything behind it. In general, the full-screen warning contains a ransom request plus certain payment details.

Ransomware infections that target mobile devices only attack smartphones, tablets and other smart and portable devices. Their method of extortion is the same as the desktop type, as they restrict access to your mobile device’s display by showing a ransom message that covers the whole screen. It will warn you about the infection and ask you to pay for unlocking your screen.

The most popular and, sadly, the most common ransomware type is the file-encrypting one to which Oori belongs to. This malware can sneak into your system, decide which data is most useful to you, and encrypt it without you noticing. Afterward, it will ask you to pay a fixed amount of money for the decryption of your important files. Frankly speaking, this is the most awful type of Ransomware because some vital information could be affected and there is no guarantee that it will ever be recovered to its previous state.

The Oori file decryption

The Oori file decryption is a process that ransomware victims can use to recover their encrypted files. Unfortunately, the Oori file decryption is not available to everyone because a secret decryption key is needed to activate the process and that key is kept in secret for a ransom.

If you don’t know what to do and whether to pay the ransom or not, we suggest that you avoid giving your money to the hackers behind Oori, GgwqGgew in every possible way. For one, that will not guarantee that your encrypted data will be recovered. Furthermore, you may never receive a decryption key from the crooks. That’s why it may be a much better idea to spend your money on professional assistance from a reputed security expert. If you want to go down the self-help road, you can always try to remove the ransomware with the help of a removal guide or a specialized removal tool and opt for system backups when it comes to file recovery.


Danger LevelHigh (Ransomware is by far the worst threat you can encounter)
Data Recovery ToolNot Available
Detection Tool

*Oori is a variant of Stop/DJVU. Source of claim SH can remove it.

Remove Oori Ransomware


As with other variants of ransomware, the removal of Oori may require your full attention. The ransomware removal process may ask for a number of computer restarts, as well. That’s why, bookmarking this page in your browser is a good idea if you want to follow the directions in this article from start to finish.

Rebooting in Safe Mode is another preparation step that allows you to keep just the most important processes and apps running, which helps to detect the malware that wreaks havoc on your computer.



*Oori is a variant of Stop/DJVU. Source of claim SH can remove it.

Once you reboot the computer in Safe Mode, launch the Task Manager (CTRL+SHIFT+ESC) and look for any suspicious processes in the Processes tab. Pay attention to processes that are using a lot of CPU and Memory without any obvious reason. Right-click on a process that you believe to be harmful and select Open File Location from the pop-up menu.


When the File Location folder of the chosen process is opened, drag and drop the files stored there into the powerful free online virus scanner below to scan them for harmful code:

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    If malware is found in any of the scanned files, end the processes immediately by right-clicking on it and selecting the End Process option. After that, remove the files and directories that are flagged by the scanner from the computer.


    The computer’s Hosts file is a frequent target for malicious modifications. That’s why you need to access the Hosts file in this step and look for any malicious IP addresses under Localhost in the text. To do that, press Windows and R keys from the keyboard together and paste the line below in the Run command box:

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

    Click the OK button next.

    The example image below shows unusual virus creator IPs, which you may find in your file in case of hacking. 

    hosts_opt (1)


    Please, write to us in the comments in case you detect something disturbing in your Hosts file, otherwise simply close the window and proceed to the next instruction.

    If you’ve been infected with ransomware like Oori, you may notice certain changes in the System Configuration settings, namely the Startup tab. As an example, harmful startup items may be added to the computer’s startup list. To check if this is the case with your system, open System Configuration by typing msconfig in the search bar of Windows and click on the result:




    If there is anything questionable in the Startup tab, (such an entry with a strange name or an unknown manufacturer) in the list of startup items, uncheck its checkbox. After that, save your changes and be certain that only genuine items are enabled in the list.


    Advanced malware often adds harmful entries to the registry as a means of gaining persistence and making it more difficult for inexperienced users to delete them. Oori is not an exception and may have inadvertently installed dangerous files in your system’s registry. Because of this, you’ll need to launch the Registry Editor (Type Regedit in the Windows search bar and press Enter) and search for items that are relevant to the infection in this step. If you’re not a professional and don’t know where to look for potentially malicious files, open a Find window by pressing CTRL and F together and type the ransomware’s name in the Find box. Then all you have to do is press the Find Next button.

    Any entries that are found should be carefully deleted. However, if you remove files unrelated to the ransomware, your operating system may get corrupted. At the same time, it’s possible that the infection may reappear if you don’t delete all the registry entries that are associated with Oori. It is thus recommended that you use an anti-malware application that can check your computer and remove any potentially harmful files that may have been concealed or lingering on your computer.

    The following five locations should also be manually searched for ransomware-related entries. To open them, copy each one in the Windows search bar and press Enter:

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

    If you detect anything unusual in the listed locations, it most likely needs to be checked for dangerous code and deleted.

    Oori’s temporary files may be cleaned out by opening Temp and selecting everything there, and then deleting it.


    How to Decrypt Oori files

    Once ransomware is removed from a computer, the biggest concern of its victims is how to recover their encrypted files. However, this is an issue that must be dealt with great care.

    If you want to get rid of Oori and other malware, it’s best to use professional anti-virus software like the one on this website. If you are certain that Oori has been completely removed from your computer, you may want to perform these steps to recover your files:

    Depending on the ransomware variant that has infected you, the method for decrypting encrypted data may differ. Determine the ransomware’s version by looking at encrypted file extensions.

    New Djvu Ransomware

    The newest Djvu ransomware variant is known as STOP Djvu. Encrypted files of this variant have the .Oori suffix, which makes it easy for the victims to identify the infection. Your best chance for decrypting data encoded by STOP Djvu right now is if those files were encrypted with an offline key. If this is your case, you may be able to restore your data with this decryptor.

    On the linked website, the STOPDjvu.exe file may be downloaded by clicking the blue Download button top right.

    When you save the file on the computer, select “Run as Administrator” and then hit the Yes button to launch the program. The decryption process will begin after you’ve read the agreement and the brief instructions and clicked the Decrypt button. Keep in mind that this decryptor is unable to decode data encrypted using unknown offline or online keys.

    Let us know if the instructions here work for you or if you have any issues with this Oori removal guide. Also, please note that you can save time and remove the ransomware quickly with the help of the anti-virus software on this removal guide. If there are any suspicious-looking files that you want to check, you can use the free online virus scanner from this link.

    What is Oori?

    Oori is a malware variant of the Ransomware file-encrypting category of malicious programs. Oori is designed to make your files inaccessible and unusable by applying to them an advanced military-grade encryption algorithm that can only be unlocked using a special private key.

    If your computer has been infiltrated by this malicious program and if your files have been encrypted by it, then you wouldn’t be able to access any of the locked files no matter what software you use, and each file would have a specific Ransomware extension appended to their filenames.

    Another notable symptom that indicates that the Ransomware has already completed its file-encrypting activities is the appearance of a ransom-demanding note in the form of a big on-screen banner or a notepad file created on the Desktop and/or in the folder/s where the encrypted files are stored. The note serves to inform the user about the ransom demanded in exchange for the decryption key and to specify the exact way in which the sum is to be transferred.

    Is Oori a virus?

    Oori is a type of virus known for using an advanced encryption algorithm that renders inaccessible all files belonging to certain file types in the attacked computer. The mission of Oori is to force its victims to perform a ransom payment for the files’ release.

    Paying the ransom, however, is strongly discouraged as it could oftentimes make the situation even worse than it already is. Obviously, the people behind Oori are cybercriminals who are not to be trusted, and so you have no reason to believe that they would keep their promise and send you a working decryption key if you pay them. Many Ransomware hackers offer to decrypt one or two files for free to prove that they do in fact have the decryption key, but even so, after you pay them, that key may never be sent to you.

    This is the reason why we always encourage our readers to seek other options that may help them recover their most important files, rather than directly give in to the demands of the blackmailers.

    How to decrypt Oori files?

    To decrypt Oori files, the recommended course of action is to research and try all potential alternative options before trying the payment variant. Before trying to decrypt Oori files via alternative methods, it’s crucial that you ensure that the virus has been fully erased.

    If you are confident that there’s no more malware on your computer, you can safely begin your attempts to restore your files. There are different options that can be tried – for instance, there could be a specialized free decryptor for Oori or you may be able to extract the original versions of your encrypted files through shadow copies stored deep within your system. Also, do not forget to check your other devices, your cloud storage, and even your email accounts for any accidental file backups that you may have forgotten about.

    If nothing else works, the payment of the ransom is still an option, but if you are thinking about going through with it, at least be sure that you’ve considered the risks of doing so.

    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.


      • Hi, Azim! If you have a New Variant online ID, there is no key for New Variant online ID. That means for now, the only other alternative to paying the ransom, is to backup/save your encrypted data as is and wait for a possible future solution if encrypted with an ONLINE KEY.

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