How to remove NaS ransomware and recover files

Easy tips to delete NaS ransomware and decrypt data

NaS ransomware is a malicious program belongs to Dharma ransomware group. It is designed to encrypt stored files and then demand ransom payment for the decryption. The affected files are renamed with this pattern: original filename, unique ID number assigned to the victim, crooks’ email address and .Nas extension.

For example, a file 1.jpg would be renamed to “1.jpg.id-9ECFA84E.[[email protected]].NaS”. Afterwards, ransom notes are created/ displayed in a pop-up window and FILES ENCRYPTED.txt. The message in the text file simply states the victims that their files have been locked and instructs them to contact the crooks.

The ext presented in the pop-up window provides more information about the ransomware infection. It clarifies about the files encryption and informs that to restore the files- they must have to pay a ransom in Bitcoin cryptocurrency.

Additionally, the message offers free decryption of one encrypted file and contains warning against doing certain actions that may result in permanent data loss. The full text presented in the pop-up window displayed by the NaS ransomware:

All your files have been encrypted!

All your files have been encrypted due to a security problem with your PC. If you want to restore them, write us to the e-mail [email protected]

Write this ID in the title of your message –

In case of no answer in 24 hours write us to theese e-mails:[email protected]

You have to pay for decryption in Bitcoins. The price depends on how fast you write to us. After payment we will send you the decryption tool that will decrypt all your files.

Free decryption as guarantee

Before paying you can send us up to 1 file for free decryption. The total size of files must be less than 1Mb (non archived), and files should not contain valuable information. (databases,backups, large excel sheets, etc.)

How to obtain Bitcoins

The easiest way to buy bitcoins is LocalBitcoins site. You have to register, click ‘Buy bitcoins’, and select the seller by payment method and price.

hxxps://localbitcoins.com/buy_bitcoins

Also you can find other places to buy Bitcoins and beginners guide here:

hxxp://www.coindesk.com/information/how-can-i-buy-bitcoins/

Attention!

Do not rename encrypted files.

Do not try to decrypt your data using third party software, it may cause permanent data loss.

Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.

Text presented in NaS ransomware‘s text file (“FILES ENCRYPTED.txt”):

all your data has been locked us

You want to return?

Write email [email protected] or [email protected]

in most of the cases with ransomware infection, without the involvement of the crooks behind the infection –the decryption is not possible. Despite that, meeting the ransom demands is highly not recommended as the crooks often do not provide the decryption tool even if all their demands are met.

To prevent NaS ransomware from further files encryption, it must be removed from the system. However, the removal will not restore the files already compromised. The solution for the files recovery is to use existing backups you have.

If backup is not available, once check if Shadow Copies exist. These automatically created backups are sometimes untouched during system infection with such ransomware threats and their operation of files encryption. Thus, they ultimately become data recovery option for the users.

In the data recovery section below the post, you will find complete guide to recover the files using Shadow Copies. If this option also does not work for you, you have to rely on third party data recovery tool or wait for the official decryption tool.

Create a copy of encrypted site to some external device and remove NaS ransomware from the system. The files do not contain any malicious code and thus it is safe to copy and save to some external device so that you can use it to restore the files when the official decryption we have for NaS ransomware.

How did ransomware infiltrate in?

Ransomware such as NaS ransomware are often spread using dubious downloading channels such as unofficial and freeware sites, p2p networks and etc. Illegal activation keys and fake software updaters are the prime examples.

Cracking tools can infect systems instead of activating licensed products. Fake software updaters cause system infection by exploiting bugs/ flaws of outdated software flaws and/or by installing malicious software.

Malware can also be distributed through spam campaigns. Scam emails can have infectious files or links for such files in them. These files can be archives, executables, Microsoft Office and PDF documents and etc, if opened – the malware download/ installation is triggered.

How to prevent ransomware infection?

It is recommended to always use official and verified download sources. Additionally, all programs should have to be updated with tools/ functions from legit developers. To avoid system infection from spam emails, it is advised against suspicious/ irrelevant emails – especially any attachments or links.

It is crucial to have a reputable antivirus tool installed and kept updated. Also, use this tool for regular system scan and to remove any detected threats/ issues. If the system is already infected with NaS ransomware, we recommend you use some reputable antivirus tool to remove it automatically.

Antimalware Details And User Guide

Click Here For Windows

Click Here For Mac

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

Step 2: Delete NaS ransomware using “System Restore”

Step 1: Remove NaS 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 NaS ransomware using “System Restore”

Log-in to the account infected with NaS 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 NaS 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 NaS 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 NaS 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 NaS 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 NaS 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 NaS 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 NaS 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 NaS 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.