Click on screenshot to zoom
Danger level 7
Type: Trojans
Common infection symptoms:
  • Slow Computer
  • System crashes
  • Connects to the internet without permission
  • Installs itself without permissions
  • Can't be uninstalled via Control Panel

Ryuk Ransomware

Ryuk Ransomware is a malicious computer infection that is categorized as ransomware (as you can obviously tell from its name). This dangerous program virtually blocks your access to your files, and it expects you to pay a ransom in order to get your files back. Needless to say, no one should ever pay the ransom because it would only encourage the criminals behind this infection to continue attacking computer systems worldwide. We should actually focus on removing Ryuk Ransomware from our systems. You can find the removal instructions below this description, although you can also get rid of the program with a licensed antispyware tool.

Ransomware programs have been all the rage for quite some time now. They are really easy to “make” in a sense that cyber criminals do not have to develop them directly. They can buy a ransom code on the darknet, and then customize the code according to their preferences. So there are a lot of ransomware infections out there that are based on the same code. Ryuk Ransomware is also similar to previously detected infections. Our research team suggests that this program’s code is similar to the one of Hermes Ransomware. However, just because ransomware programs share code similarities, it does not mean that they can be decrypted using the same key. All decryption keys tend to be unique.

To lock up their victims’ files, Ryuk Ransomware uses the AES and RSA encryption algorithms. Both algorithms are extremely strong. They are often used at the government level for national security purposes, and it is highly unfortunate that cyber criminals are applying the same encryptions in such a despicable way as well. Not to mention that no one can guarantee this infection would issue the decryption key in the first place, and so the entire affair is extremely shady.

What we have learned about Ryuk Ransomware so far is that this program usually targets companies and corporations, rather than individual users. So while some of you may think that you can breathe a sigh of relief, the program gives a lot of headache to multiple security specialists out there. It means that it can infect not one computer, but several computers connected to the same network immediately. What’s more, if the affected company does not have its files backed up on a separate server or maybe in external data storage, it means that the infection can hold the entire business hostage.

If that were not enough, we also know that Ryuk Ransomware can delete the Shadow Volume copies (provided they were enabled prior to the infection). This cuts the victims off from the ability to restore their files from the Shadow copies once the infection has been removed.

We can definitely see how grave the situation is, and this proves that we must invest in cyber security education, and we must do it now. Ryuk Ransomware usually gets distributed through corrupted Remote Desktop Protocol connections and spam email attachments. Therefore, if employees learn to tell which files could be ransomware installation packages, a major infection could be prevented.

Whether the infection comes through an RDP connection or a spam email message, the point is that one should never open a received file in a hurry. We get tons of files every single day, and how can we know whether the sender is reliable? If you find it extremely hard to tell legitimate and fake files apart, you can get a new habit of scanning the received files with a security tool before opening them. This way, you could definitely prevent Ryuk Ransomware and other similar infections from entering your system.

Now, you need to remove Ryuk Ransomware from your system. Normally, it is not hard to remove a ransomware infection; it is far more difficult to deal with its consequences. You can delete Ryuk Ransomware following the instructions below, or you can terminate it with a security tool.

As for the encrypted files, in some cases, you may have to start from the scratch because no public decryption tool is available. However, more often than not, it is possible to retrieve the most recent files from your inbox or your mobile device. Also, if you are dealing with a corporate infection, you might as well want to let your company’s security specialists deal with it.

How to Remove Ryuk Ransomware

  1. Remove the most recently launched file.
  2. Press Win+R and type regedit. Click OK.
  3. Go to HKEY_CURRENT_USER\Software\Microsofot\Windows\CurrentVersion\Run.
  4. On the right pane, right-click and delete the svchos value.
  5. Delete malicious files from your Desktop.
  6. Scan the entire system with a security tool.
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