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Danger level 7
Type: Trojans
Common infection symptoms:
  • Slow Computer
  • System crashes
  • Normal system programs crash immediatelly
  • Connects to the internet without permission
  • Installs itself without permissions
  • Can't be uninstalled via Control Panel

Gandcrab V4

What is the worst thing that can happen if you are not careful enough? Many things could go awry. For example, GandCrab V4 could silently invade your Windows operating system and then encrypt your personal files. Although it is disruptive and annoying when malware disables Internet connection or prevents you from running your operating system in a normal manner, most issues can be fixed. When it comes to this malicious ransomware, however, there might be no solution or way out. Once files are encrypted, they are as good as gone, and that is because only the creator of the ransomware has the decryption key. Unfortunately, there is nothing more we can tell you in regards to the decryption of files because, at this moment, it is simply impossible. What we can help you with is the removal of the malicious ransomware, and it is important to take care of this as soon as possible. Some users will have no trouble deleting GandCrab V4 manually, but others will need to employ additional instruments.

There are several paths GandCrab V4 could have taken to enter your operating system. You might have executed the infection when you opened a false spam email attachment, or you might have downloaded it when you installed software promoted on a corrupted WordPress site or an unreliable file-sharing site. Once the file is run, it checks the language of the operating system and the keyboard. If it detects Armenian, Azerbaijani, Belarusian, Georgian, Kazakh, Kyrgyz, Romanian, Russian, Tajik, Tatar, Turkmen, Ukrainian, or Uzbek language, it suspends the attack. Clearly, Windows users in the countries where these languages are spoken are not the targets of GandCrab V4. If the language of your system is not on the forbidden list, the ransomware can encrypt files, and it uses the Salsa20 encryptor for that. The previous versions of the infection (GandCrab, GandCrab2, and GandCrab3) relied on AES and RSA encryptors. It is also interesting that the newest version no longer needs internet connection beyond execution. Speaking of versions, the 4th one has variations too (4.1, 4.2, 4.3…), every single one of which comes with new advancements. At this point, the removal process is the same for all of them.

Have you found a file named “KRAB-DECRYPT.txt”? It is created by GandCrab V4, and it informs that “files, documents, photos, databases” have been encrypted. It does not mention that mapped drives and shared resources are encrypted too. The message also indicates that the “.KRAB” extension is added to the names of the corrupted files, and the files that have it are the ones you can no longer open. The goal of the message is to give you false hope and convince you that there is a way out. The instructions in the message suggest installing the Tor browser and using it to access a webpage set up by the creator of GandCrab V4. This page is unique for every user but is found on http://gandcrabmfe6mnef.onion/. If you visit this page, you face new instructions that suggest paying a huge ransom of 1,200 USD in DASH or Bitcoin crypto-currency to obtain a decryptor. It is stated that the price would go up even more if the payment was not made quickly. Does that mean you should use the opportunity and pay the ransom? It does not. If you pay it, you will not get the decryptor. Needless to say, the sum of the ransom is too big to take the risk. This is when you need to start thinking about removal.

Your files might be lost, but you can remove GandCrab V4, and that is something we suggest doing as soon as possible. So, do you have experience? Do you know where files are usually downloaded? Do you know how to recognize malware files? If you have little or no experience, it might be hard for you to delete GandCrab V4 manually. Even experienced users might have some trouble, and they might not want to waste their time. So, what’s the solution? You can install a reliable anti-malware program. Why should you do it? It will automatically delete the ransomware, and if other threats exist, they will be erased too. Furthermore, it will help with your system’s protection. So long as this program is up-to-date, it will secure the operating system against all types of malware. Obviously, this is the best thing you can do for your own security at this point. Afterward, we suggest creating a file backup online or using a removable drive. If files are backed up, malware cannot corrupt them.

GandCrab V4 Removal

  1. Tap Ctrl+Alt+Delete, select Start Task Manager, and go to Processes.
  2. Identify the ransomware process, then right-click it and select Open file location.
  3. Go back to the process, select it, and choose End process.
  4. Go to the location of the ransomware file, then right-click it and select Delete.
  5. Delete other recently downloaded suspicious files.
  6. Delete the ransom note file, KRAB-DECRYPT.txt.
  7. Right-click the recycle bin icon and select Empty Recycle Bin.
  8. Install a malware scanner and use it to examine the system for malware leftovers.
Download Spyware Removal Tool to Remove* Gandcrab V4
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