GandCrab 5.0.5 Ransomware

Also Known As: GandCrab 5.0.5 virus
Distribution: Low
Damage level: Severe

GandCrab 5.0.5 ransomware removal instructions

What is GandCrab 5.0.5?

GandCrab 5.0.5 is a new variant of high-risk ransomware called GandCrab 5.0.4. Version 5.0.5 was released immediately after BitDefender developed a decryption tool for the previous version. After successful infiltration, GandCrab 5.0.5 encrypts most stored data and appends filenames with a random string. For instance, "sample.jpg" might be renamed to a filename such as "sample.jpg.obkbtxtn". Once encryption is complete, data immediately becomes unusable. As well as encrypting files, GandCrab 5.0.5 changes the desktop wallpaper and creates a text file (named "[aforementioned_random_strong]-DECRYPT.txt"), placing a copy in each existing folder.

The new desktop wallpaper contains a message stating that data is encrypted and that victims must read the text file, which contains a more detailed message regarding the current situation. The message also states that the data is encrypted and can only be restored with the help of a unique decryption key. All keys are stored on a remote server and victims must pay a ransom for their release. To do this, they must visit GandCrab 5.0.5's website on the Tor network and follow the instructions. The cost of GandCrab 5.0.5 decryption is $800 and must be paid in the Bitcoin or DASH cryptocurrencies. The website also contains a countdown timer. Once it reaches zero, the cost supposedly doubles. In any case, never agree to pay. Ransomware developers ignore victims once payments are submitted. Therefore, paying often gives no positive result and users are scammed. We strongly recommend that you ignore all requests to submit payments or contact these people. Unfortunately, there are no tools capable of cracking GandCrab 5.0.5 encryption and restoring data free of charge (BitDefender's decryptor does not support this version of GandCrab). Therefore, the only solution is to restore everything from a backup.

Screenshot of a message encouraging users to pay a ransom to decrypt their compromised data:

GandCrab 5.0.5 decrypt instructions

There are dozens of ransomware-type viruses that share similarities with GandCrab 5.0.5. The list of examples includes (but is not limited to) Crypted000007, FUNNY, GusCrypter, Charm, and FilesLocker. Note that, although these viruses are developed by different cyber criminals, their behavior is virtually identical - all encrypt data and make ransom demands. They typically have just two major differences: size of ransom and type of encryption algorithm used. Most employ algorithms designed to generate unique decryption keys. Therefore, unless the virus is not fully developed or has certain bugs/flaws, restoring data manually (without developers involvement) is impossible. Ransomware-type viruses are one of the main reasons why you should maintain regular data backups, however, remember to store them on an unplugged storage device or a remote server, otherwise backups will be encrypted with regular data.

How did ransomware infect my computer?

Ransomware-type viruses are proliferated in various ways, however, the most popular tools/methods are trojans, spam email campaigns, unofficial software download sources, and fake software update tools. Trojans cause so-called "chain infections" - one virus infiltrates another. Spam email campaigns deliver infectious attachments (usually MS Office documents) that, immediately after opening, download and install malware into the system. Third party download sources (P2P networks, free file hosting websites, freeware download websites, etc.) present malicious executables as legitimate software, thereby tricking users into downloading and installing malware. Fake updaters infect computers by exploiting outdated software bugs/flaws or simply downloading and installing malware rather than the updates.

Threat Summary:
NameGandCrab 5.0.5 virus
Threat TypeRansomware, Crypto Virus, Files locker
SymptomsCan't open files stored on your computer, previously functional files now have a different extension, for example my.docx.locked. A ransom demanding message is displayed on your desktop. Cyber criminals are asking to pay a ransom (usually in bitcoins) to unlock your files.
Distribution methodsInfected email attachments (macros), torrent websites, malicious ads.
DamageAll files are encrypted and cannot be opened without paying a ransom. Additional password stealing trojans and malware infections can be installed together with a ransomware infection.
Removal

To eliminate GandCrab 5.0.5 virus our malware researchers recommend scanning your computer with Spyhunter.
▼ Download Spyhunter
Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Spyhunter.

How to protect yourself from ransomware infections?

Poor knowledge of these threats and careless behavior are the main reasons for computer infections. The key to safety is caution. Therefore, pay close attention when browsing the internet and downloading/installing/updating software. Think twice before opening email attachments. If you believe that a received file/link is irrelevant or the sender seems suspicious, do not open anything. Furthermore, download apps from official sources only, using direct download links (since third party downloaders/installers often include rogue programs). The same applies to software updates. Keep installed applications and operating systems up-to-date, but use implemented functions or tools provided by the official developer only. Having a reputable anti-virus/anti-spyware suite installed and running is also paramount, since these tools can detect and eliminate malware before any damage is done. If your computer is already infected with GandCrab 5.0.5, we recommend running a scan with Spyhunter for Windows to automatically eliminate this ransomware.

Text presented in GandCrab 5.0.5 ransomware text file:

---=    GANDCRAB V5.0.5  =---
***********************UNDER NO CIRCUMSTANCES DO NOT DELETE THIS FILE, UNTIL ALL YOUR DATA IS RECOVERED***********************
    *****FAILING TO DO SO, WILL RESULT IN YOUR SYSTEM CORRUPTION, IF THERE WILL BE DECRYPTION ERRORS*****
Attention!
All your files, documents, photos, databases and other important files are encrypted and have the extension: .OBKBTXTN     
The only method of recovering files is to purchase an unique private key. Only we can give you this key and only we can recover your files.
The server with your key is in a closed network TOR. You can get there by the following ways:
---------------------

| 0. Download Tor browser - hxxps://www.torproject.org/

| 1. Install Tor browser
| 2. Open Tor Browser
| 3. Open link in TOR browser:   hxxp://gandcrabmfe6mnef.onion/113737081e857d00                        
| 4. Follow the instructions on this page

-----------------                   
On our page you will see instructions on payment and get the opportunity to decrypt 1 file for free.
ATTENTION!
IN ORDER TO PREVENT DATA DAMAGE:
* DO NOT MODIFY ENCRYPTED FILES
* DO NOT CHANGE DATA BELOW

---BEGIN GANDCRAB KEY---
-
---END GANDCRAB KEY---

---BEGIN PC DATA---
-
---END PC DATA---

Screenshot of GandCrab 5.0.5 desktop wallpaper:

GandCrab 5.0.5 wallpaper

Screenshot of GandCrab 5.0.5 website:

GandCrab 5.0.5 website

Text presented within this site:

If the payment isn't made until 3/8/2018, 10:45:13 AM, the cost of decrypting files will be doubled
Countdown to double price: Time is up. Price is doubled!
What's the matter?
Your computer has been infected with GandCrab Ransomware.
All your files have been encrypted and you are not able to decrypt it by yourself.
To decrypt your files you have to buy GandCrab decryptor
The price is - 800 USD
What can I do to get my files back?
You should buy our software GandCrab Decryptor. It will scan your PC, network share, all connected devices and check for encrypted files and decrypt it. Current price: 800 USD. We accept cryptocurrency DASH and Bitcoin
What guarantees can you give me?
To be sure we have the decryptor and it works you can use free decrypt and decrypt one file for free.
But this file must be an image, because images usually are not valuable.
I don't have Bitcoin (BTC) or DASH (DSH). How can I make the payment?
Easy. The list of the most popular exchange services:
BuyBitcoin
CoinMonitor.io
LocalBitcoins
CoinMama
Changelly.com
PAYEER
CEX.IO

The full list of exchange services for Bitcoin here and for DASH here.
Create an account
Charge the balance with a credit card or paypal
Buy requested amount of coins (Bitcoin or DASH)
Make withdrawal to our address

Screenshot of files encrypted by GandCrab 5.0.5 (random extension):

Files encrypted by GandCrab 5.0.5

Update February 19, 2019 - BitDefender has recently released a decryption tool capable of restoring data encrypted by GandCrab V1, V4, and all V5 versions (up to 5.1). Therefore, victims can decrypt their data easily without paying cyber criminals. You can find more information in this article and you can download the decryptor by clicking this link.

Screenshot of BitDefender's GandCrab decryptor:

GandCrab ransomware decryption tool by BitDefender

GandCrab 5.0.5 ransomware removal:

Instant automatic removal of GandCrab 5.0.5 virus: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Spyhunter is a professional automatic malware removal tool that is recommended to get rid of GandCrab 5.0.5 virus. Download it by clicking the button below:
▼ DOWNLOAD Spyhunter By downloading any software listed on this website you agree to our Privacy Policy and Terms of Use. Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Spyhunter.

Quick menu:

Step 1

Windows XP and Windows 7 users: Start your computer in Safe Mode. Click Start, click Shut Down, click Restart, click OK. During your computer start process, press the F8 key on your keyboard multiple times until you see the Windows Advanced Option menu, and then select Safe Mode with Networking from the list.

Safe Mode with Networking

Video showing how to start Windows 7 in "Safe Mode with Networking":

Windows 8 users: Start Windows 8 is Safe Mode with Networking - Go to Windows 8 Start Screen, type Advanced, in the search results select Settings. Click Advanced startup options, in the opened "General PC Settings" window, select Advanced startup. Click the "Restart now" button. Your computer will now restart into the "Advanced Startup options menu". Click the "Troubleshoot" button, and then click the "Advanced options" button. In the advanced option screen, click "Startup settings". Click the "Restart" button. Your PC will restart into the Startup Settings screen. Press F5 to boot in Safe Mode with Networking.

Windows 8 Safe Mode with networking

Video showing how to start Windows 8 in "Safe Mode with Networking":

Windows 10 users: Click the Windows logo and select the Power icon. In the opened menu click "Restart" while holding "Shift" button on your keyboard. In the "choose an option" window click on the "Troubleshoot", next select "Advanced options". In the advanced options menu select "Startup Settings" and click on the "Restart" button. In the following window you should click the "F5" button on your keyboard. This will restart your operating system in safe mode with networking.

windows 10 safe mode with networking

Video showing how to start Windows 10 in "Safe Mode with Networking":

Step 2

Log in to the account infected with the GandCrab 5.0.5 virus. Start your Internet browser and download a legitimate anti-spyware program. Update the anti-spyware software and start a full system scan. Remove all entries detected.

If you cannot start your computer in Safe Mode with Networking, try performing a System Restore.

Video showing how to remove ransomware virus using "Safe Mode with Command Prompt" and "System Restore":

1. During your computer start process, press the F8 key on your keyboard multiple times until the Windows Advanced Options menu appears, and then select Safe Mode with Command Prompt from the list and press ENTER.

Boot your computer in Safe Mode with Command Prompt

2. When Command Prompt mode loads, enter the following line: cd restore and press ENTER.

system restore using command prompt type cd restore

3. Next, type this line: rstrui.exe and press ENTER.

system restore using command prompt rstrui.exe

4. In the opened window, click "Next".

restore system files and settings

5. Select one of the available Restore Points and click "Next" (this will restore your computer system to an earlier time and date, prior to the GandCrab 5.0.5 ransomware virus infiltrating your PC).

select a restore point

6. In the opened window, click "Yes".

run system restore

7. After restoring your computer to a previous date, download and scan your PC with recommended malware removal software to eliminate any remaining GandCrab 5.0.5 ransomware files.

To restore individual files encrypted by this ransomware, try using Windows Previous Versions feature. This method is only effective if the System Restore function was enabled on an infected operating system. Note that some variants of GandCrab 5.0.5 are known to remove Shadow Volume Copies of the files, so this method may not work on all computers.

To restore a file, right-click over it, go into Properties, and select the Previous Versions tab. If the relevant file has a Restore Point, select it and click the "Restore" button.

Restoring files encrypted by CryptoDefense

If you cannot start your computer in Safe Mode with Networking (or with Command Prompt), boot your computer using a rescue disk. Some variants of ransomware disable Safe Mode making its removal complicated. For this step, you require access to another computer.

To regain control of the files encrypted by GandCrab 5.0.5, you can also try using a program called Shadow Explorer. More information on how to use this program is available here.

shadow explorer screenshot

To protect your computer from file encryption ransomware such as this, use reputable antivirus and anti-spyware programs. As an extra protection method, you can use programs called HitmanPro.Alert and EasySync CryptoMonitor, which artificially implant group policy objects into the registry to block rogue programs such as GandCrab 5.0.5 ransomware.

Note that Windows 10 Fall Creators Update includes a "Controlled Folder Access" feature that blocks ransomware attempts to encrypt your files. By default, this feature automatically protects files stored in the Documents, Pictures, Videos, Music, Favorites as well as Desktop folders.

Controll Folder Access

Windows 10 users should install this update to protect their data from ransomware attacks. Here is more information on how to get this update and add an additional protection layer from ransomware infections.

HitmanPro.Alert CryptoGuard - detects encryption of files and neutralises any attempts without need for user-intervention:

hitmanproalert ransomware prevention application

Malwarebytes Anti-Ransomware Beta uses advanced proactive technology that monitors ransomware activity and terminates it immediately - before reaching users' files:

malwarebytes anti-ransomware

  • The best way to avoid damage from ransomware infections is to maintain regular up-to-date backups. More information on online backup solutions and data recovery software Here.

Other tools known to remove GandCrab 5.0.5 ransomware: