How to remove Kuub virus and restore encrypted files

Guide how to remove Kuub virus and decrypt .Kuub files corrupted by ransomware. Effective antivirus and programs that can help you to restore lost information.

Kuub ransomware virus

Kuub is the worst disaster which is among the hairiest hazards on the Internet. It is a typical pillage, but with no true criminals around you: hackers get into your system and take anything they wish, casting a victim aside with a crippled hard drive, filled with spoiled folders. Kuub ransomware is the brightest example of this type of viruses: it’s easy to find and almost impossible to uninstall, but there are some measures you should take. On this page, we want to tell you what is ransomware and how it infested your PC. We'll clarify to you in which ways you can avoid ransomware infestation, and how you can get your files back. You need to realize that most of the suchlike programs will never get defeated, so if you've got one – your data may be already gone for good. Rarely even web-criminals make mistakes to develop the way to remove their virus or to turn the tide. The victim may be saved by specific controls of the PC, and we'll tell you how to take advantage of it.

What is Kuub ransomware

The encoding programs, also known as ransomware, are the viruses that infest users’ systems and encode their information to get money for its restoration. More often than not, swindlers get on customer's computer through email spam or 0-day Trojans. E-mail fraud is very easy to identify – it will be sent without any notice, and there will be a file in it. When it comes to 0-day Trojans, it’s a bit harder – you'll never realize what it will be before you get infected so that the best way is to frequently update the OS and other utilities which you use.



The catch is that all ransomware exploit the well-known encryption systems, such as the RSA and the AES. They are simply the most complex ones, and you can't break them. Actually, you may decipher them, having a century of regular PC’s operation time or several years of operation on the very powerful machine of the world. We're certain that neither of these options suits a user. The easiest way to overcome ransomware is to not let it get onto the machine, and we'll explain to you how to do that.

Regular ransomware viruses aren’t very intricate in their structure, but even the sloppiest virus is very efficient, and we’ll explain our point. They all use the super-complex methods of encryption. Ransomware's aim is not to take the files. Everything it wants to do is to penetrate the system, encode your files and remove the real data, leaving the spoiled versions instead of them. You can't use those data afterwards. You cannot use the files and can’t repair them. There are several ways to restore the information, and they all are written down in this piece.

As soon as the job is done, fraudsters show you a ransom message, and when it appeared – it's too late. There's only one turn you can take now - to remove a virus from your machine and attempt to restore the files. We have said “try” as the probability to handle it without a decryption tool are ghostly.

Kuub removal guide

You need to remove ransomware until you start working on file restoration since if it sticks in the system – it will begin encrypting every single file that enters the device. Even more - any device you're sticking into the spoiled computer will become infected also. To avoid this – eliminate Kuub through following this useful advice. Remember that the deletion will not reverse the Kuub's deeds, and after doing this, you will not be able to pay the ransom. It will be wise that since every ransom gained is making web-criminals more positive in fraud schemes and increases their funds to invent other encrypting programs. It's worth mentioning that if you’re dealing with fraudsters, they can just take the money and forget about you. They have already ciphered your data, and if you want to transfer them the ransom on top of that.

Removal instruction

Step 1. Boot in Safe mode

Safe mode

Start -> Msconfig.exe

Safe mode. Step 1

On the tab Boot select Safe boot

Safe mode. Step 2

Step 2. Check Startup folder

Start -> Msconfig.exe ->Disable unknown programs in the Startup tab


Step 3. Check hosts file

Modify hosts file, that located in C:\Windows\System32\drivers\etc\ .

Hosts file.Step 1

Open the file with Notepad and delete suspicious strings.

Hosts file.Step 2

It has to look like this:

Hosts file.Step 3

Step 4. Scan the system with antiviral scanner

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Step 5. Disable Safe mode

Start -> Msconfig.exe ->Disable Safe boot in the Boot tab

Deactivate Safe mode

Kuub decryption instruction

After you delete Kuub from your system, and you're sure about it, you should learn more about the decryption manners. On the first place, we want to mention that the most reliable manner is to load a backup. In case you have the backups of your information and Kuub is completely deleted – don't fret. Erase the spoiled information and upload the copies. If there were no backup copies – the chances to restore the data are slim to none. Shadow Volume Copies service is your lucky ticket. It’s the inbuilt tool of Windows, and it saves all the altered or removed files. They can be accessed via custom restoration programs.

Unfortunately, the modern ransomware might erase these files, but if you use an account that has no admin rights, the virus just had no ability do that without the permission. You may recall that several minutes before you saw a swindler's message there was a different dialogue window, suggesting to apply alterations to your computer. If you have cancelled these changes – the SVC weren't removed, so they might be accessed through special programs as ShadowExplorer or Recuva. Both of them may be found in the Net. Each of them has its official websites, so you should download them from there, with detailed instructions. If you want more explanations about this – feel free to check the extended guide on file restoration: article about files decryption.

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