Qapo Virus

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


Qapo is a ransomware cryptovirus that people with criminal intentions use to extort money from web users. The way Qapo does harm is by secretly encrypting files that belong to the computer’s owner and asking for a money transfer to decrypt them.

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

Qapo is one of the latest ransomware infections that has been reported and in this article, we will explain to you how to remove it in case you have been infected. In general, ransomware infections like Qapo, Craa and Qazx do not need anything special to infect your machine and encrypt all your important data. They only need you to carelessly click on one of their numerous transmitters (spam messages, malicious email attachments, fake ads, torrents, etc.) to get activated and to complete their agenda without showing you any signs of it. Once they have blocked access to your files, however, they will display a very scary and eye-poking notification on your screen, which normally informs you about the attack and demands a ransom payment for the decryption of the encrypted files.

The Qapo virus

The Qapo virus is a harmful piece of software created to blackmail unsuspecting web users. The way the Qapo virus operates is simple – it encrypts files that it considers of great value to the victim and asks for a ransom payment in order to decrypt those files.

For instance, Qapo will invade your PC, access your drives and disks and find out which data you use most frequently. Then, the virus will create a list of these files and will encrypt them one by one with a complex code. Unfortunately, no matter what you do, there won’t be any assurance that your information will be restored to its previous state even if you decide to pay the hackers or remove the ransomware virus.

The .Qapo file decryption

The .Qapo file decryption is a process that is available to those who pay for a decryption key. However, the .Qapo file recovery could also be possible if the victims have personal backup copies of their files.

It is generally extremely difficult to deal with the consequences of the ransomware infection because there can be no guarantees about the future of the encrypted information and the infected computer. The hackers will typically try to convince you that paying the ransom will solve everything but, in most cases, all they are interested in is how to get your money, not how to decrypt your files. Therefore, if you decide to pay them, there is always the risk that they may vanish without sending you any decryption key or another decryption solution.

That being said, you have to be especially attentive when you decide on how to act. Security specialists advise that you try some other solutions before you decide to risk your money. And some of these solutions include following the instructions in guides such as the one below which will not only help you remove Qapo but may also be able to help you extract some of your files from system backups if you are lucky.


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

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

Remove Qapo Ransomware


Before you start with the actual removal of Qapo, we recommend that you make sure there are no USB drives or other external storage devices connected to your PC if Qapo has infected you. Unplugging your PC from the Internet may also be a good idea because it is possible that the Ransomware will be able to get new instructions from its servers if the machine is connected to the internet. That’s why, the first thing we recommend you to do is open this removal guide on another device and follow it from there, or save these Qapo removal instructions to your browser’s bookmarks so that you won’t have to search for them every time that the system restarts.

Next, we recommend that you boot your computer into Safe Mode, so the ransomware can’t resume its processes while you complete the remaining removal steps.



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

Next, press Ctrl + Shift + Esc or enter Task Manager in the Start Menu search bar and click Enter to launch the Task Manager. In it, select the Processes tab. After sorting by Memory and CPU consumption, check for entries with suspicious names that may be related to the Ransomware in this list of processes.


It’s a good idea to search the Internet for information on any suspicious processes, as well as to open the location folders of those processes by right-clicking on them and choosing Open File Location, and then scanning the contents of the folder with the scanner below.

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    If you discover information online posted on a reliable source that suggests the process may be harmful or if any of the files in the process’ folder are marked as threats, end the process by right-clicking on it and choosing End Process, then delete the process’ folder.

    Next, check out whether your Hosts file has been modified without your knowledge. To do that, press together the Win key and R and paste the following command in the Run box:

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

    Look for IP addresses that are added just below Localhost and if you discover any strange-looking IPs, (like those on the image) please leave us a comment, and we’ll advise you what to do.

    hosts_opt (1)

    Enter “msconfig” in the Windows Search bar in the Start menu and click Enter. This will open the “System Configuration” window. Click the “startup” tab and check the items on the list. Remove any checkmarks on Startup items that you believe are connected to the malware.  After that, click “OK” to save your changes.


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

    Malicious programs are becoming more adept at evading detection by secretly modifying the computer’s registry so that they may continue to operate for as long as possible after being placed on the system. You must, therefore, use the Registry Editor in this step to locate and remove any files associated with Qapo that were installed on your computer without your knowledge. In this way, the malware will be completely removed from your machine. To access the Registry Editor, enter regedit in the Windows search bar and then press Enter on your keyboard.

    You may search for files that may be connected to the infection by pressing CTRL and F at the same time. Enter the name of the threat in the Find box that displays. To begin looking for harmful files, click the Find Next button in the Find box.

    Attention! Advanced malware threats like Qapo may be difficult to remove manually. Using the sophisticated malware-removal program on this page is recommended if you have a reason to think that the infection is still on your computer. This software is also good to protect your machine from future malware attacks.

    Ransomware-related files may be found in the following five places on a computer. That’s why, we strongly recommend you to browse through each of these folders below and look for any new or strange files. Use the Windows Search bar and put in the following search terms to get access to each of them.

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

    Search for files that contain potentially hazardous code, but only make modifications or delete files if you are certain that they are part of the threat. Hold the CTRL and A keys while pressing the Delete key on your keyboard to remove any temporary files from your computer’s Temp directory.


    How to Decrypt Qapo files

    For non-ransomware professionals, decrypting ransomware-encrypted data can be a challenge. Depending on the ransomware type that was used to encrypt the data, decryption procedures may differ, making it more difficult to recover the data. Look at the file extensions that are attached to encrypted files to identify the ransomware variant that you are faced with.

    Data recovery can’t begin until your computer has been thoroughly scanned for viruses using an anti-virus tool (like the one offered on our website). Only after you’ve run a full malware check and discovered none, it is safe to start looking into file recovery options.

    Next Djvu Ransomware

    STOP Djvu is a new variant of ransomware that has become a major concern for many people and security professionals all around the world. The .Qapo suffix is often added to files encrypted by this virus.  The good news is that, even though this is a new threat, you still may be able to recover your encrypted data using decryptors like this one from the link:

    Run the STOPDjvu.exe application that you’ve downloaded on your computer to begin decrypting the data. Choose “Run as Administrator” before moving on. Be sure to completely review the license agreement and any associated instructions. We need to inform you that the application may not be able to decode data encoded using unknown offline keys or online encryption methods, thus, successful recovery is not guaranteed in all cases.

    If you’re having trouble removing the Qapo ransomware, we have anti-virus software that can assist. Manually scanning any files you think could be harmful is also possible using our free online virus scanner.


    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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