What is RYK ransomware? And how does it implement its attack?

RYK ransomware is a data-encrypting malware designed to make files inaccessible to users. It is a new variant of Ryuk ransomware. It uses the .RYK extension in marking the files it encrypts, hence the name RYK ransomware. The instant its malicious payload is loaded in the system, it starts to implement a series of modifications. It starts by connecting the targeted system to a remote C&C server controlled by the attackers. From this remote server, RYK ransomware downloads its other components and puts them on several system folders in order to repress or launch system processes which allows it to implement its attack effectively.
RYK ransomware also makes alterations in some of the registry keys and sub-keys like Run and RunOnce. This allows the crypto-virus to execute its attack automatically every time a victim starts the computer. It also scans the system for security and antivirus programs that might interfere with its attack and disables or removes them. It then scans the computer for files with the following extensions:
.doc, .docx, .jpg, .jpeg, .xls, .xlsx, .pdf
Once it finds its targeted files, RYK ransomware encrypts them using a sophisticated encryption algorithm. Following file encryption, it appends the .RYK suffix to every compromised file and releases a file named “RyukReadMe.txt” which contains the following content:
“Your network has been penetrated.
All files on each host in the network have been encrypted with a strong algorithm.
Backups were either encrypted
Shadow copies also removed, so F8 or any other methods may damage encrypted data but not recover.
We exclusively have decryption software for your situation.
More than a year ago, world experts recognized the impossibility of deciphering by any means except the original decoder.
No decryption software is available in the public.
Antiviruse companies, researchers, IT specialists, and no other persons cant help you encrypt the data.
DO NOT RESET OR SHUTDOWN – files may be damaged.
DO NOT DELETE readme files.
To confirm our honest intentions.Send 2 different random files and you will get it decrypted.
It can be from different computers on your network to be sure that one key decrypts everything.
2 files we unlock for free
To get info (decrypt your files) contact us at
[email protected]
[email protected]
You will receive btc address for payment in the reply letter
No system is safe”
How does RYK ransomware spread over the web?
RYK ransomware spreads over the web in a file named TQNIAe.exe which is distributed using several methods. It could be disguised as an installer of some program or it could be attached to emails. This is why you have to be extra cautious in what you download online as it could result to your computer getting infected with nasty cyber threat like RYK ransomware.
Be sure to follow the removal guide given below to successfully obliterate RYK ransomware from your computer.
Step 1: Open the Task Manager by simply tapping Ctrl + Shift + Esc keys on your keyboard.
Step 2: Under the Task Manager, go to the Processes tab and look for the process named TQNIAe.exe as well as other suspicious-looking process that takes up most of your CPU’s resources and is most likely related to RYK ransomware.

Step 3: After that, close the Task Manager.
Step 4: Tap Win + R, type in appwiz.cpl and click OK or tap Enter to open Programs and Features under Control Panel.
Step 5: Under the list of installed programs, look for RYK ransomware or anything similar and then uninstall it.

Step 6: Next, close Control Panel and tap Win + E keys to launch File Explorer.
Step 7: Navigate to the following locations below and look for RYK ransomware’s malicious components such as TQNIAe.exe, RyukReadMe.txt, [random].exe and other suspicious files, then delete all of them.

  • %TEMP%
  • %WINDIR%\System32\Tasks
  • %APPDATA%\Microsoft\Windows\Templates\
  • %USERPROFILE%\Downloads
  • %USERPROFILE%\Desktop

Step 8: Close the File Explorer.
Before you proceed to the next steps below, make sure that you are tech savvy enough to the point where you know exactly how to use and navigate your computer’s Registry. Keep in mind that any changes you make will highly impact your computer. To save you the trouble and time, you can just use [product-name], this system tool is proven to be safe and excellent enough that hackers won’t be able to hack into it. But if you can manage Windows Registry well, then by all means go on to the next steps.
Step 9: Tap Win + R to open Run and then type in regedit in the field and tap enter to pull up Windows Registry.

Step 10: Navigate to the following path:

  • HKEY_CURRENT_USER\Control Panel\Desktop\
  • HKEY_USERS\.DEFAULT\Control Panel\Desktop\
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce

 Step 11: Delete the registry keys and sub-keys created by RYK ransomware.
Step 12: Close the Registry Editor and empty the Recycle Bin.
Try to recover your encrypted files using the Shadow Volume copies
Restoring your encrypted files using Windows’ Previous Versions feature will only be effective if RYK ransomware hasn’t deleted the shadow copies of your files. But still, this is one of the best and free methods there is, so it’s definitely worth a shot.
To restore the encrypted file, right-click on it and select Properties, a new window will pop-up, then proceed to Previous Versions. It will load the file’s previous version before it was modified. After it loads, select any of the previous versions displayed on the list like the one in the illustration below. And then click the Restore button.

Complete the removal process of RYK ransomware by using a trusted and reliable program like [product-name]. Refer to the following guidelines on how to use it.
Perform a full system scan using [product-code]. To do so, follow these steps:

  1. Turn on your computer. If it’s already on, you have to reboot it.
  2. After that, the BIOS screen will be displayed, but if Windows pops up instead, reboot your computer and try again. Once you’re on the BIOS screen, repeat pressing F8, by doing so the Advanced Option shows up.
    1. To navigate the Advanced Option use the arrow keys and select Safe Mode with Networking then hit
    2. Windows will now load the Safe Mode with Networking.
    3. Press and hold both R key and Windows key.

    1. If done correctly, the Windows Run Box will show up.
    2. Type in the URL address, [product-url] in the Run dialog box and then tap Enter or click OK.
    3. After that, it will download the program. Wait for the download to finish and then open the launcher to install the program.
    4. Once the installation process is completed, run [product-code] to perform a full system scan.

    1. After the scan is completed click the “Fix, Clean & Optimize Now” button.

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