How to remove Kvag virus and restore encrypted files

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

Kvag ransomware virus

An encrypting virus is the worst trouble that can happen while using computer. It is the web criminal, only without physical pillagers close to the victim: ransomware developers penetrate the system and take all they want, leaving a user with the corrupted system filled by damaged data. Kvag malware is the best illustration of this virus type: it’s not hard to find it and very difficult to fix the consciences, but we can help you with it.

In our article, we want to explain you what is ransomware and how it infected your device. We try to explain you how you can avoid encrypting virus' infestation, and what you need to do to get your data back. Remember that most of the ransomware will never get decrypted, so if you have one – the files may be already gone forever. Rarely even fraudsters make mistakes to develop the approach to neutralize their virus or to reverse its actions. Files can be saved by specific system options, and we will teach you how to take advantage of it.

What is Kvag ransomware

Ransomware are the programs that infect your machines and waste the files to ask money to restore them. In most cases, hackers get on user's device via malspam campaigns or 0-day vulnerabilities. Hazardous message is not difficult to define – you will get it suddenly, and there will be some files fasten to it. When it comes to 0-day vulnerabilities, it is substantially more difficult – you will never know what it is before you are taken over which means that the most efficient method is to regularly check for the updates the operation system and other programs, which you have installed.



The difficulty is that all encrypting programs utilize the publically accessible encryption algorithms, such as the RSA and the AES. They are very complex and can’t be decrypted. Of course, you may decrypt them, having five decades of your home machine’s working time or several years of work on the most powerful computer of the world. We don't think that any of these options suits you. It's time to realize that ransomware are easy to avoid, but if one of them is already on your PC – it's a big issue.

Usual encrypting viruses are not intricate in their code, but even the easiest ransomware is extremely efficient, and we will explain to you why. It is all about the mechanisms of encryption. Malicious programs' aim is not to steal the files. All it wants to do is to infect the operation system, spoil your files and erase the originals, placing the encrypted files instead of them. The data are useless afterwards. You cannot use the files and cannot repair them. We know several manners to recover the data, and we have described them all in our piece.

When infection has done, scammers give you a note with directives, and as it popped up – you can be sure that the information is corrupted. There's only one thing you can do now - to remove Kvag virus from your system and attempt to restore the information. We have said “attempt” as the probability to deal with it with no decryptor is very low.

How to remove Kvag

You need to delete Kvag until you go on since if it sticks in the system – it will go on encrypting each file that enters the device. You have to realize that every medium storage you are sticking into the spoiled device also can be infected. We know that you do not want it, so simply eliminate the virus through following this useful advice. Keep in mind that the uninstallation will not decrypt the data, and if you do this, you will not be able to pay the ransom. It will be wise because with each gain swindlers become more confident in their "business" and increases their money to invent viruses that are even more complex. The important thing is that when you are dealing with scammers, you have no assurance that the information will be deciphered after you pay them.

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

Kvag decryption instruction

After you uninstall Kvag from the device, and you double-checked it, you should learn more about the recovery ways. Firstly, we should mention that the most effective method is to have a backup. In case you had the copies of the files and the virus is entirely eliminated – just erase the ciphered information and load the copies. In case there were no backup copies – the chances to get the files are critically low. The single method to recover them is the Shadow Volume Copies. It’s the common tool of Windows, and it duplicates every single file that was modified. They can be reached via specific recovery utilities. The most famous are Recuva and Shadow Explorer.

Naturally, all actual ransomware can block or erase these files, but if you are accessing the system from an entry without master privileges, Kvag simply had no ability do that without your permit. You might remember that time before displaying hacker's message there was another menu, suggesting applying changes to your system. If you have blocked those alterations – the SVC is at your service, so they may be reached through special programs mentioned above. They can be easily finding on the Internet. It is better for you to get them from the websites of their creators, with step-by-step instructions. If you need more explanations on this topic – feel free to check our guide about data restoration: article about files decryption.

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