How to remove Nebula ransomware

Tips for Nebula ransomware removal

Nebula ransomware is a modified version of Noblis ransomware. It operates by encrypting stored files and demanding ransom payment for the decryption. During encryption, it appends the filenames of the encrypted files using .Noblis extension. For example, a file named 1.jpg becomes 1.jpg.Noblis after the encryption. Following to this, the ransomware creates a .txt file named encrypted_files.txt and drops it on the desktop and on each infected folder.

The .txt contains a short ransom note written in Spanish language. It states that the files have been encrypted using AES encryption algorithm that allows the crooks behind Nebula ransomware to create unique decryption tool during the encryption process. They demand 0.01834 BTC for the exchange of the tool. They offer free decryption service to gain the users’ trust. Also, they threaten them to make payment soon by saying that the tool will available for only a short period, once the time elapsed, the last option for the data decryption tool will be deleted. The complete text presented on the note is as follow:

Crypter

YOUR FILES HAVE to the BEEN The ENCRYPTED!

Archivos más importantes los de este equipo han edition sido cifrados con un sistema de Grado militar (the AES-256)

Sus Documentos, the videos, imágenes y otros formatos (y por supuesto la the FLAG) están fuera de alcance the su … the Y the no podrá descifrarlos sin llave apropiada … la Esta se Encuentra almacenada en un Servidor remoto.

Únicas Formas de las obtenerla, será la pagando a billetera antes que of el tiempo se .. acabe También puede vulnerar of el Servidor remoto¿? …

About encontrar alguna falla en este sistema de cifrado¿? …

— Recuerde que este reto es únicamente con fines an e … investigativos académicos No pierda tiempo … Pues una vez termine la cuenta regresiva, the los archivos serán eliminados de forma permanente —

@ 4v4t4r

WALLET the ADDRESS: nobliswallet99838399283928392323

Bitcoin of FEE: 1.0

Typically, the crooks’ involvement is necessary for the data back since these people exactly know the key/code through which the encryption is done. However, these people are here just to scam the users. In other word, they disappear leaving the victims without their files once the payment is done. Therefore, you must avoid paying/contacting the crooks rather use some data recovery alternatives. The safest option is to remove Nebula ransomware and recover the files using existing backups. The malware removal is necessary to prevent further files encryptions and avoid various possible risks due to the infection.

After the malware removal, use existing backup for the data recovery. Most users however do not have such backup files. If you are one of them, use some data recovery tools. Nowadays, such tools are design with special functionality added and so you can anticipate of the data recovery using them. Volume Shadow Copy could another data recovery option for you. However, most often, ransomware viruses run PowerShell command and delete it in the process to harden the decryption process. You should however check whether this option available for you or not by using  the data recovery instruction provided below the post in the data recovery section. In this section, you will see various other data recovery options as well that may help you in data recovery of the crucial files that got infected due to the Nebula ransomware intrusion.

How did ransomware infect my computer?

Developers proliferate ransomware in various ways, however, the most popular four are: 1) spam emails [malicious attachments]; 2) third party software download sources [peer-to-peer {P2P} networks, freeware download websites, free file hosting websites, etc.]; 3) fake software update tools, and; 4) Trojans are described below.

• Spam emails – such emails have some infectious file attachments (e.g., JavaScript files, MS Office documents and similar), once opened –users end up to the malware downloading/installation in their device
• Unofficial download sources- including p2p networks, free file hosting sites and third party downloaders or installers spread malware by presenting it as legit software
• Fake updaters –Such fake updating tools infect the system by exploiting outdated software bugs/flaws or simply downloading and installing malware rather than updates.
• Trojans –they open backdoor in the devices to cause additional malware intrusion after the infection

How to protect yourself from ransomware infections?

To prevent ransomware infections, be very cautious when browsing the Internet. Think twice before opening email attachments. If the files seem irrelevant or have been received from a suspicious/unrecognizable email address, delete the email immediately and certainly do not open any attachments. Furthermore, use official sources only (via direct download links) for any software download. Avoid using third party downloaders/installers, p2p networks, free file hosting sites and other untrustworthy channels. The same applies to updating software and their activation – keep installed apps up-to-date using implemented functions or tools provided by official developers only. For betterment, employ some reputable antivirus tool that provides adequate protection to the device.

Threat Summary

Type: Ransomware

Symptoms: Stored files become inaccessible, and their filename gets renamed. Ransom demanding message is displayed on the desktop. Cyber crooks demand ransom payment for the files decryption.

Distribution methods: infected email attachments, torrent sites and malicious ads

Damages: Risk of password stealing Trojan or other dangerous virus intrusion that cause direct damage to the system/software installed

Removal: Use some reputable antivirus tool or follow below mentioned step by step instruction to remove Nebula ransomware from the system

Files recovery: Use existing backup. If you do not have such tools, refer data recovery tool provided for you just below the post for the restoration of the damaged files

Remove Nebula ransomware

Manual malware removal guide is provided below in step by step manner. Follow it so that you will not find any trouble during removal process. You can use some reputable antivirus tool to automatically remove Nebula ransomware from the device.

Antimalware Details And User Guide

Click Here For Windows

Click Here For Mac

Step 1: Remove Nebula ransomware through “Safe Mode with Networking”

Step 2: Delete Nebula ransomware using “System Restore”

Step 1: Remove Nebula ransomware through “Safe Mode with Networking”

For Windows XP and Windows 7 users: Boot the PC in “Safe Mode”. Click on “Start” option and continuously press on F8 during the start process until the “Windows Advanced Option” menu appears on the screen. Choose “Safe Mode with Networking” from the list.

Now, a windows homescreen appears on the desktop and work-station is now working on “Safe mode with networking”.

For Windows 8 Users: Go to the “Start Screen”. In the search results select settings, type “Advanced”. In the “General PC Settings” option, choose “Advanced startup” option. Again, click on the “Restart Now” option. The work-station boots to “Advanced Startup Option Menu”. Press on “Troubleshoot” and then “Advanced options” button. In the “Advanced Option Screen”, press on “Startup Settings”. Again, click on “Restart” button. The work-station will now restart in to the “Startup Setting” screen. Next is to press F5 to boot in Safe Mode in Networking.

For Windows 10 Users: Press on Windows logo and on the “Power” icon. In the newly opened menu, choose “Restart” while continuously holding “Shift” button on the keyboard. In the new open “Choose an option” window, click on “Troubleshoot” and then on the “Advanced Options”. Select “Startup Settings” and press on “Restart”. In the next window, click on “F5” button on the key-board.

Step 2: Delete Nebula ransomware using “System Restore”

Log-in to the account infected with Nebula ransomware. Open the browser and download a legitimate anti-malware tool. Do a full System scanning. Remove all the malicious detected entries.

In case if you cannot start the PC in “Safe Mode with Networking”, Try using “System Restore”

• During the “Startup”, continuously press on F8 key until the “Advanced Option” menu appears. From the list, choose “Safe Mode with Command Prompt” and then press “Enter”

• In the new opened command prompt, enter “cd restore” and then press “Enter”.

• Type: rstrui.exe and Press “ENTER”

• Click “Next” on the new windows

• Choose any of the “Restore Points” and click on “Next”. (This step will restore the work-station to its earlier time and date prior to Nebula ransomware infiltration in the PC.

• In the newly opened windows, press on “Yes”.

Once your PC gets restored to its previous date and time, download the recommended anti-malware tool and perform a deep scanning in order to remove Nebula ransomware files if they left in the work-station.

In order to restore the each (separate) file by this ransomware, use “Windows Previous Version” feature. This method is effective when “System Restore Function” is enabled in the work-station.

Important Note: Some variants of Nebula ransomware delete the “Shadow Volume Copies” as well hence this feature may not work all the time and is applicable for selective computers only.

How to Restore Individual Encrypted File:

In order to restore a single file, right click on it and go to “Properties”. Select “Previous Version” tab. Select a “Restore Point” and click on “Restore” option.

In order to access the files encrypted by Nebula ransomware, you can also try using “Shadow Explorer”. In order to get more information on this application, press here.

Important: Data Encryption Ransomware are highly dangerous and it is always better that you take precautions to avoid its attack on your work-station. It is advised to use a powerful anti-malware tool in order to get protection in real-time. With this help of “SpyHunter”, “group policy objects” are implanted in the registries in order to block harmful infections like Nebula ransomware.

Also, In Windows 10, you get a very unique feature called “Fall Creators Update” that offer “Controlled Folder Access” feature in order to block any kind of encryption to the files. With the help of this feature, any files stored in the locations such as “Documents”, “Pictures”, “Music”, “Videos”, “Favorites” and “Desktop” folders are safe by default.

It is very important that you install this “Windows 10 Fall Creators Update” in your PC to protect your important files and data from ransomware encryption. The more information on how to get this update and add an additional protection form rnasomware attack has been discussed here.

How to Recover the Files Encrypted by Nebula ransomware?

Till now, you would have understood that what had happed to your personal files that got encrypted and how you can remove the scripts and payloads associated with Nebula ransomware in order to protect your personal files that has not been damaged or encrypted until now. In order to retrieve the locked files, the depth information related to “System Restore” and “Shadow Volume Copies” has already been discussed earlier. However, in case if you are still unable to access the encrypted files then you can try using a data recovery tool.

Use of Data Recovery Tool

This step is for all those victims who have already tries all the above mentioned process but didn’t find any solution. Also it is important that you are able to access the PC and can install any software. The data recovery tool works on the basis of System scanning and recovery algorithm. It searches the System partitions in order to locate the original files which were deleted, corrupted or damaged by the malware. Remember that you must not re-install the Windows OS otherwise the “previous” copies will get deleted permanently. You have to clean the work-station at first and remove Nebula ransomware infection. Leave the locked files as it is and follow the steps mentioned below.

Step1: Download the software in the work-station by clicking on the “Download” button below.

Step2: Execute the installer by clicking on downloaded files.

Step3: A license agreement page appears on the screen. Click on “Accept” to agree with its terms and use. Follow the on-screen instruction as mentioned and click on “Finish” button.

Step4: Once the installation gets completed, the program gets executed automatically. In the newly opened interface, select the file types that you want to recover and click on “Next”.

Step5: You can select the “Drives” on which you want the software to run and execute the recovery process. Next is to click on the “Scan” button.

Step6: Based on drive you select for scanning, the restore process begins. The whole process may take time depending on the volume of the selected drive and number of files. Once the process gets completed, a data explorer appears on the screen with preview of that data that is to be recovered. Select the files that you want to restore.

Step7. Next is to locate the location where you want to saver the recovered files.