Remove TeslaCrypt 4.1b and Restore Your Files - How to, Technology and PC Security Forum |

Remove TeslaCrypt 4.1b and Restore Your Files

ransomware-virusWell-known and widely feared ransomware pieces such as TeslaCrypt and CryptoWall are constantly being improved and as a result, new versions are released. According to Bleeping Computer, TeslaCrypt 4.1b has just surfaced the Web, as a user has submitted a sample of the threat. It is too early to say exactly which features of the ransomware were modified.

NameTeslaCrypt 4.1b
Short DescriptionThe ransomware encrypts the victim’s files and demands payment.
SymptomsThe user may witness several files beginning with the name “RECOVERY” on his desktop which are the ransom notes.
Distribution MethodNot known yet but highly likely via exploit kits.
Detection ToolDownload Malware Removal Tool, to See If Your System Has Been Affected by TeslaCrypt 4.1b
User Experience Join Our Forum to Discuss TeslaCrypt 4.1b.
Data Recovery ToolWindows Data Recovery by Stellar Phoenix Notice! This product scans your drive sectors to recover lost files and it may not recover 100% of the encrypted files, but only few of them, depending on the situation and whether or not you have reformatted your drive.

What Do We Know about TeslaCrypt 4.1b?

Even though little is known about this version, some information is available thanks to the ransom note. The ransom note used by this version of TeslaCrypt doesn’t appear to have any big changes. However, two new payment gateway hosts are available at the following locations:


Learn More about TeslaCrypt 4.0

As with other ransomware, once TeslaCrypt is executed on your system and file encryption is initiated, the ransomware will connect to its command and control servers and will send an encrypted post message. The decrypted post message will contain values, one of which is called ‘version’ and contains TeslaCrypt 4.1b.

Researchers at BC also report that this version of TeslaCrypt uses the WMIC utility to delete Shadow Volume copies. The command used by TeslaCrypt 4.1b to delete Shadow Volume copies is the following:

C:\Windows\system32\wbem\WMIC.exe shadowcopy delete /nointeractive.

Here is a list of the files created by the latest version of TeslaCrypt:


Here is a list of the registry entries added by the threat:

→HKCU\Software\Microsoft\Windows\CurrentVersion\Run\[random] C:\Windows\SYSTEM32\CMD.EXE /C START %UserProfile%\Documents\[random].exe
HKCU\Software\[victim_id] HKCU\Software\[victim_id]\data

How Can I Remove TeslaCrypt 4.b1 and Can I Restore My Files?

To remove TeslaCrypt, consider following the steps in the removal instructions below. They include scanning your system for TeslaCrypt 4.1b via a strong anti-malware program. After the threat has been removed, we strongly advise you to use cloud backup or external drive to protect your data from future ransomware and malware attacks.

As for file restoration, you can refer to the alternative methods illustrated in Step 4 in the manual below. Keep in mind that they are not 100% effective, and there is no guarantee that you will restore your files in good condition. The good news is some of our forum users have managed to restore some of their data. If you decide to use the data recovery software method, we advise you NOT to reinstall Windows or format your hard drive because it may wipe every chance of file restoration by clearing the sectors of the drive.

1. Boot Your PC In Safe Mode to isolate and remove TeslaCrypt 4.1b

Boot Your PC Into Safe Mode

1. For Windows 7,XP and Vista. 2. For Windows 8, 8.1 and 10.

For Windows XP, Vista, 7 systems:

1. Remove all CDs and DVDs, and then Restart your PC from the “Start” menu.
2. Select one of the two options provided below:

For PCs with a single operating system: Press “F8” repeatedly after the first boot screen shows up during the restart of your computer. In case the Windows logo appears on the screen, you have to repeat the same task again.


For PCs with multiple operating systems: Тhe arrow keys will help you select the operating system you prefer to start in Safe Mode. Press “F8” just as described for a single operating system.


3. As the “Advanced Boot Options” screen appears, select the Safe Mode option you want using the arrow keys. As you make your selection, press “Enter“.

4. Log on to your computer using your administrator account


While your computer is in Safe Mode, the words “Safe Mode” will appear in all four corners of your screen.

Step 1: Open the Start Menu


Step 2: Whilst holding down Shift button, click on Power and then click on Restart.
Step 3: After reboot, the aftermentioned menu will appear. From there you should choose Troubleshoot.


Step 4: You will see the Troubleshoot menu. From this menu you can choose Advanced Options.


Step 5: After the Advanced Options menu appears, click on Startup Settings.


Step 6: Click on Restart.

Step 7: A menu will appear upon reboot. You should choose Safe Mode by pressing its corresponding number and the machine will restart.

2. Remove TeslaCrypt 4.1b with SpyHunter Anti-Malware Tool

Remove TeslaCrypt 4.1b with SpyHunter Anti-Malware Tool

1. Install SpyHunter to scan for and remove TeslaCrypt 4.1b.2. Scan with SpyHunter to Detect and Remove TeslaCrypt 4.1b.
Step 1:Click on the “Download” button to proceed to SpyHunter’s download page.

It is highly recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter.

Step 2: Guide yourself by the download instructions provided for each browser.
Step 3: After you have installed SpyHunter, wait for it to automatically update.


Step1: After the update process has finished, click on the ‘Scan Computer Now’ button.
Step2: After SpyHunter has finished scanning your PC for any TeslaCrypt 4.1b files, click on the ‘Fix Threats’ button to remove them automatically and permanently.
Step3: Once the intrusions on your PC have been removed, it is highly recommended to restart it.

3. Back up your data to secure it against infections and file encryption by TeslaCrypt 4.1b in the future

Back up your data to secure it against attacks in the future

IMPORTANT! Before reading the Windows backup instructions, we highly recommend to back up your data automatically with cloud backup and insure it against any type of data loss on your device, even the most severe. We recommend reading more about and downloading SOS Online Backup .

To back up your files via Windows and prevent any future intrusions, follow these instructions:

1. For Windows 7 and earlier 1. For Windows 8, 8.1 and 10 1. Enabling the Windows Defense Feature (Previous Versions)

1-Click on Windows Start Menu
2-Type Backup And Restore
3-Open it and click on Set Up Backup
4-A window will appear asking you where to set up backup. You should have a flash drive or an external hard drive. Mark it by clicking on it with your mouse then click on Next.
5-On the next window, the system will ask you what do you want to backup. Choose the ‘Let Me Choose’ option and then click on Next.
6-Click on ‘Save settings and run backup’ on the next window in order to protect your files from possible attacks by TeslaCrypt 4.1b.

1-Press Windows button + R
2-In the window type ‘filehistory’ and press Enter
3-A File History window will appear. Click on ‘Configure file history settings’
4-The configuration menu for File History will appear. Click on ‘Turn On’. After its on, click on Select Drive in order to select the backup drive. It is recommended to choose an external HDD, SSD or a USB stick whose memory capacity is corresponding to the size of the files you want to backup.
5-Select the drive then click on ‘Ok’ in order to set up file backup and protect yourself from TeslaCrypt 4.1b.

1- Press Windows button + R keys.
2- A run windows should appear. In it type ‘sysdm.cpl’ and then click on Run.
3- A System Properties windows should appear. In it choose System Protection.
5- Click on Turn on system protection and select the size on the hard disk you want to utilize for system protection.
6- Click on Ok and you should see an indication in Protection settings that the protection from TeslaCrypt 4.1b is on.
Restoring a file via Windows Defense feature:
1-Right-click on the encrypted file, then choose Properties.
2-Click on the Previous Versions tab and then mark the last version of the file.
3-Click on Apply and Ok and the file encrypted by TeslaCrypt 4.1b should be restored.

4. Restore files encrypted by TeslaCrypt 4.1b

Restore Files Encrypted by TeslaCrypt 4.1b

Security engineers strongly advise users NOT to pay the ransom money and attempt restoring the files using other methods. Here are several suggestions:

To restore your data, your first bet is to check again for shadow copies in Windows using this software:

Shadow Explorer

If this method does not work, Kaspersky have provided a decryptors for files encrypted with the this and other encryption algorithms:

Kaspersky Decryptors

Another method of restoring your files is by trying to bring back your files via data recovery software. Here are some examples of data recovery programs:

There is also the technical option to use a network sniffer:

Another way to decrypt the files is by using a Network Sniffer to get the encryption key, while files are encrypted on your system. A Network Sniffer is a program and/or device monitoring data traveling over a network, such as its internet traffic and internet packets. If you have a sniffer set before the attack happened you might get information about the decryption key.

Optional: Using Alternative Anti-Malware Tools

Remove TeslaCrypt 4.1b Using Other Alternative Tools

STOPZilla Anti Malware
1. Download and Install STOPZilla Anti-malware to Scan for And Remove TeslaCrypt 4.1b.
Step 1: Download STOPZilla by clicking here.
Step 2: A pop-up window will appear. Click on the ‘Save File’ button. If it does not, click on the Download button and save it afterwards.
Step 3: After you have downloaded the setup, simply open it.
Step 4: The installer should appear. Click on the ‘Next’ button.
Step 5: Check the ‘I accept the agreement’ check circle if not checked if you accept it and click the ‘Next’ button once again.
Step 6: Review and click on the ‘Install’ button.
Step 7: After the installation process has completed click on the ‘Finish’ button.

2. Scan your PC with STOPZilla Anti Malware to remove all TeslaCrypt 4.1b associated files completely.
Step 1: Launch STOPZilla if you haven’t launched it after install.
Step 2: Wait for the software to automatically scan and then click on the ‘Repair Now’ button. If it does not scan automatically, click on the ‘Scan Now’ button.
Step 3: After the removal of all threats and associated objects, you should Restart your PC.

NOTE! Substantial notification about the TeslaCrypt 4.1b threat: Manual removal of TeslaCrypt 4.1b requires interference with system files and registries. Thus, it can cause damage to your PC. Even if your computer skills are not at a professional level, don’t worry. You can do the removal yourself just in 5 minutes, using a malware removal tool.
Milena Dimitrova

Milena Dimitrova

An inspired writer and content manager who has been with SensorsTechForum since the beginning. Focused on user privacy and malware development, she strongly believes in a world where cybersecurity plays a central role. If common sense makes no sense, she will be there to take notes. Those notes may later turn into articles! Follow Milena @Milenyim

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