How to remove GandCrab virus and restore encrypted files

If you've encountered a ransomware and have causes to assume that it is the GandCrab virus – in our guide you'll receive help. We offer plain and tested advice on GandCrab elimination and potential methods to get back the encrypted data.

 

Gandcrab virus

 

What is GandCrab

Ransomware is one of the most worst thing in virus world, and everyone knows that if you can't access your files and there's a ransom note – the stuff are turning bad. It’s a true, by the way. An encrypting virus is the worst thing that can happen to you in computer usage because an ordinary user has no opportunety to fix it. The exclusive event when you can beat ransomware is when you’re not dealing with a true one, but a phoney, that covers the display and tries to trick you into making a payment. In any other cases, if a virus was developed and maintained in a right way – you can just trust that ransomware fighters will deal with it. If swindlers committed a mistake, and a virus has some flaws, which allow you to get back data – we’ll explain to you what to do in our article.

 

Regardless of ransomware’s type, the RSA and AES algorithms are too complex to brute force them. To perform all required operations on a standard computer, it will require for a hundreds years, or, possibly, 2-3 decades, if you can use a mega-efficient computer. There are two basic methods to beat a ransomware: to hack it, or break into the Command & Control website, to get a master key. Rare ransomware examples also have a breaker that can cease virus' operation in full or to drive it off a particular machine. If anyone discovers that switch for this virus, or publish a decryptor, we'll update this guide.

 

GDCB files

 

So, what is GandCrab? It is based on a legal encryption system that encrypts all files on operator’s machine, so you cannot use them in any way. Of course, a key is also encoded with a different algorithm. As usual, scammers prefer RSA and AES manners that are known for their complicacy and fail-safety. These manners and the programs based on them are freely available on the Internet, so scammers just need to invent attack mechanisms, to protect program code, and make the flawless control and update pattern. Some encrypting programs just function on their own with help of trojans, and fraudsters recognize about a new "client" not before he turns to them and forwards the funds. Other ransomwares are function in different way, and deliver reports to hundreds addresses, to confuse the security specialists and maximize the efforts needed to defeat a virus.

 

Here you can find several things to check, until you can search for a decryptor. As we said before, scammers make failures, and certain features of the Windows may help you to recover data.

 

  • If you do not employ the system via an administrator's profile – today is your fortunate day. The thing is that Windows duplicates any information before it is eliminated or modified. These files are known as the SVC, and the malware has the manners to destroy them. If you are working from the usual entry – the OS requests for a permission when GandCrab tries to remove SVC. If you saw suchlike window and cancel it – your SVC are secure, and you should use a topical tool to get back the data.
  • If you've made a copy of your data, and placed it on an outer drive – you should remove virus and upload old version of the files. Make sure that GandCrab is deleted in full, since if it isn't – all data can be messed up one more time, including the files that are on a flash disc.

 

If all of written above hints didn't work and you have no possibility to recover the data – you better delete GandCrab from your PC and wait until a decryptor will be developed.

How to remove GandCrab

As for the uninstalling – there’s no chance to completely escape an installation of an antiviral program. GandCrab is incredibly stealthy and you can skip some dangerous elements and then regret it (it might happen if you connect an outer data storage with your saved information to a not-totally-cleared PC). It knows how to lurk very well, and you just can't uninstall it fully on your own. Here's your removal specification which will suit your needs. It contains some manual stages and an extra anti-viral tool phase. Of course, you can use any other antivirus, but do it.

Removal instruction

If you are MAC user, follow this guide: how to decrypt files on MAC.

 

 

 

Step 1. Boot the system into safe mode

  • Press Start
  • Type Msconfig and press Enter

Safe mode. Step 1

 

  • Select Boot tab

Safe mode. Step 2

 

 

  • Select Safe boot and press Ok

More information about Safe mode: What is Safe Mode and how to boot computer in Safe Mode

 

Step 2. Show all hidden files and folders

  • Press Start
  • Click on Control Panel

Show hidden files. Step 1

 

  • Select Appearance and Personalization

Show hidden files. Step 2

 

  • Click on Folder Options
  • Select View tab
  • Select Show hidden files, folders and drives

Show hidden files. Step 3

 

  • Press Ok

 

Step 3. Remove virus files

 

Check next folders to find suspicious files:

  • %TEMP%
  • %APPDATA%
  • %ProgramData%

 

Step 4. Fix hosts file

  • Go to %SystemRoot%\System32\drivers\etc\ folder

Hosts_file_location

 

  • Open hosts file using Notepad or other text editor
  • Delete suspicious elements
  • Basic hosts file looks like this:

Hosts_file

 

Step 5. Clean registry (for experienced users)

  • Click Start
  • Type Regedit.exe and press Enter
  • Clean startup registry keys
  • HKEY_LOCAL_MACHINE(HKEY_CURRENT_USER)\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_LOCAL_MACHINE(HKEY_CURRENT_USER)\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • HKEY_LOCAL_MACHINE(HKEY_CURRENT_USER)\Software\Microsoft\Windows\CurrentVersion\RunServices
  • HKEY_LOCAL_MACHINE(HKEY_CURRENT_USER)\Software\Microsoft\Windows\CurrentVersion\RunServicesOnce
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit

Step 6. Scan computer with antivirus

We offer you to try Spyhunter AV program that is not simply effective, but is modern and continuously progressing program that can clear the computer of all viruses. Push the button below to use Spyhunter and eliminate GandCrab.

 

Download Spyhunter - Anti-malware scanner

Why we recommend SpyHunter

Spyhunter removes malware fully

It protects the system against all kinds of threats: viruses, adware and hijackers

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More about Spyhunter: User manual, System requirements, Terms of service, EULA and Privacy policy


 

Step 7. Disable Safe Mode and restart computer

  • Press Start
  • Type Msconfig and press Enter
  • Select Boot tab
  • Remove the check near Safe boot

How to restore files

Since you cleared your PC of GandCrab, it's time for the data restoration. As we said before, if you use an admin account and you let the virus an access to the device – you have no trick to recover your files except for the backups. If you use a usual profile – you have faint odds for data restoration, but it needs peculiar recovery program. The most effective ones of them are ShadowExplorer and Recuva tools. They're simple to get on their official websites, with step-by-step guides.

  • Click Start
  • Click Control Panel

Decrypt files. Step 1

 

  • Click System and Security

Decrypt files. Step 2

 

  • Select Backup and Restore

Decrypt files. Step 3

 

  • Select Restore files from backup
  • Select checkpoint to restore

 

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