Qlda Virus


Qlda is a ransomware virus created by people with criminal intentions to target user files and encrypt them with a secret algorithm. As soon as Qlda encrypts the targeted files, it demands a ransom for their decryption in the form of a cryptocurrency payment.

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The Qlda virus ransom note

If Qlda infects your machine, you may lose access to some of your most important digital documents, archives, databases, media files, or even vital system information. What is more, you may be asked to pay a certain amount of money to some anonymous hackers in order to regain access to your information through a secret decryption key. In other words, you will be asked for a ransom to access your own data. The ransom amount that the people behind the Qlda virus may want may vary from just a few bucks to several thousand dollars! Naturally, not everyone may be ready to pay that much money to some cybercrooks. That’s why, on this page, we have come up with instructions on how to remove this virus and potentially recover some of your files for free. If this is exactly what you are looking for, we would recommend that you first read the next paragraphs and afterwards scroll to our removal guide below.

The Qlda virus

The Qlda virus is a malicious piece of software identified as ransomware. The specialty of the Qlda virus is to encrypt user files without any symptoms and then demand a ransom payment for their decryption by displaying a ransom message on the victim’s screen.

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The Qlda ransomware encrypted files

Ransomware viruses such as Qlda are the worst of all kinds of malware because they can block your access to some of your most needed digital documents and information. To do this, the they use something called file encryption which is a process that is not only extremely difficult to reverse, but also doesn’t get flagged by your antivirus program. In reality, the encryption alone is not a dangerous or destructive process and is often used to benefit people when there is need to hide sensitive information from prying eyes. However, when used by viruses such as Qlda, Futm, Qdla, the encryption prevents the owners of the data from accessing it because the ransomware that performs the encryption does not provide its victims with the needed decryption key. Instead, it stores it in remote servers controlled by hackers who ruthlessly blackmail the web users for a ransom in order to send them the key.

The .Qlda file

The .Qlda file is a regular file that has secretly been encrypted by the .Qlda ransomware. As a result of the applied encryption, the .Qlda file becomes unreadable and cannot be opened with any existing software.

If you have become a victim of the Qlda file encryption, the following guide will show you how to find and remove Qlda from your computer. The same guide also shows the steps to help you potentially recover your encrypted files through system backups. Before you give these steps a try, however, make sure that you have removed the ransomware. This is the first and the most important step towards dealing with the infection, because failing to remove the virus will likely lead to further encryption of data and permanent loss of any documents that are recovered.


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Remove Qlda 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).



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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    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.


    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 Qlda 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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