How to remove NOSU ransomware

Easy NOSU ransomware removal guide

NOSU ransomware is a huge risk infection that is designed to prevent users’ access to their important files stored in their device till a ransom is paid. It encrypts the data using a strong cipher algorithm and appends the filenames with .NOSU extension. For example, a file myphoto.jpg becomes myphoto.jpg.NOSU. Soon after that the ransomware creates _readme.txt file and drops it on each folder containing infected folder.

The _readme.txt file contains the ransom demanding message from the crooks behind NOSU ransomware. It states that the files have been encrypted and that the victims require establishing a contact to the NOSU developers, if they want the data back in their original accessible condition. It also states that the decryption is possible with a unique decryptor that the developers can only provide it. Unfortunately, this is true. NOSU ransomware encrypts the files using ASA algorithm that creates a unique key for each victim individually. All such keys are stored on some remote server of the hackers’ access. They blackmail users to pay a ransom for the exchange of decryption tools/software embedded with the key/code. The amount of the ransom is $980. However, a huge 50% discount is offered to those who made the contact within 3 days or 72 hours of the files encryption. The crooks also offer free decryption services to gain users’ trust. As per the note, users can attach 1 encrypted file less than 1 MB in size and does not contain any valuable information with the email.  The message ends with a note that warns users to no use any third party tools or renames the filename or, otherwise the files will permanently be deleted. Here is the full text presented on the _readme.txt file:

ATTENTION!

Don’t worry, you can return all your files!

All your files like photos, databases, documents and other important are encrypted with strongest encryption and unique key.

The only method of recovering files is to purchase decrypt tool and unique key for you.

This software will decrypt all your encrypted files.

What guarantees you have?

You can send one of your encrypted file from your PC and we decrypt it for free.

But we can decrypt only 1 file for free. File must not contain valuable information.

You can get and look video overview decrypt tool:

https://we.tl/t-Oc0xgfzC7q

Price of private key and decrypt software is $980.

Discount 50% available if you contact us first 72 hours, that’s price for you is $490.

Please note that you’ll never restore your data without payment.

Check your e-mail “Spam” or “Junk” folder if you don’t get answer more than 6 hours.

To get this software you need write on our e-mail:

[email protected]

Reserve e-mail address to contact us:

[email protected]

Your personal ID:

You should NOT pay/communicate to the Cybercriminals. Such people never provide decryption tools/software even if all their demands are met. In other word, if you pay the ransom fee, you will be scammed and will get no any decryption software. Also, you will lose your crucial money. The safest option is to remove NOSU ransomware and recover the files using existing backup (check other data recovery options provided below the post). The ransomware removal is necessary to prevent it from further files encryptions.

How did NOSU ransomware intrude in?

Typically, computes get infected with ransomware or other malware through scam campaigns, Trojans, untrustworthy downloading sources, fake software updaters and unofficial software activation tools. Cybercriminals spread malware via scam campaigns by sending emails containing infectious files or links as attachments. Typically, such attachments, if opened, install malicious software. In most cases, such attachments include PDF documents, MS Office files, Archives files, executables files and JavaScript. Trojans are a malicious program that is designed to download/install other malware. Fake software updaters exploit bugs/flaws of outdated software or directly downloading malware. Unofficial software activators cause infections by supposedly bypassing activation key for paid software.

How to prevent intruding ransomware?

We recommend you use only official websites and direct links for any software download and avoid all aforementioned untrustworthy downloading channels. If a received email irrelevant, it is received from suspicious/unknown addresses and it contains some web link or attachment, you must not opened such contents. Software updating/activation should be done using official software developers provided tools and implemented functions only. Finally, we recommend you scan the operating system for threat on regular basis using antivirus tools/programs. If you system is already infected, run a full scan to the system with some reputable antivirus tools for automate NOSU ransomware removal.

Threat Summary

Type: Ransomware

Extension use:  .NOSU

Ransom note:  _readme.txt

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 NOSU ransomware from the system

Remove NOSU ransomware

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

Recommended Ransomware Removal & File Restoration Guide

NOSU ransomware is extremely robust in its nature to encrypt your files, and unless the threat is removed completely, file recovery is technically not possible. To do complete removal of NOSU ransomware out of your computer. Downlaod Spyhunter Anti-Spyware Tool Now.

After the infection is completely removed out of your compromised system, you may further process the encrypted file recovery either with your own lately created backup file. Or choose a trusted data recovery program to restore your data. Download a suggested recovery tool.

How to turn your encrypted files working once again?

Well, through the above explanations mentioned, you might have learned actually what happened to your files after encryption. Since the malware that has affected your files is now removed with suggested scanner, you would still require to turn your files working. And we are now going to discuss how to accomplish this task. Based on expert’s researches and their findings, there’s a number of possible methods or ways which a user can get through to restore their encrypted files to work. Even many of victimized users have tried these methods with their own infected computer and success rate is almost 95 percent. So, you can hope to have your files back, and in order to accomplish complete restore of your infected data, we suggest you check out some suggested methods here:

Methods 1: Restore encrypted files using a powerful data recovery software

Before you start to read the steps, you should know this method is appropriate to those users who have found no solutions to decrypt their files affected by ransomware. But still they are able to utilize their system and can install a software. According to experts, this method has very low difficulty level as it utilizes a program to do so.

Although this method is called to be the safest way to recover encrypted files, it still have some limitations. Technically, the encrypted data recovery solution looks through your system and its partitions to recover original files which are actually deleted by virus to replace with the encrypted one. In many cases, the user tend to copy the encrypted files on some external drive and re-install Windows OS that actually declines the chances of data recovery through this method. So, after you have managed to clean your system against malware effects, leave the files as they are and get through the steps to restore your files using one of the top most data recovery app called Stellar Phoenix Data Recovery Software.

Step 1: At first, download the app on your system by clicking the download button below.

Step 2: Click on the downloaded file through your browser to execute its installer.

Step 3: In the license agreement page, click to accept the terms and click Next button. Further, follow on-screen instructions to complete the installation, and click on Finish button finally.

Step 4: After the installation is done, the program will run automatically. At the first interface, select the file types now that you intend to recovery followed by clicking Next.

Step 5: Select the drives over which you need the software to run over and perform the recovery of encrypted files. Done? Click on Scan button.

Step 6: The software will now scan all selected drive to complete the restore process, however it may take some time depending upon volume of drives and number of files or directories were there previously. After the scanning process ends, you will be shown with a file explorer with preview of your data which you want to recover. Just select those which you need to be restored.

Step 7: Browse a location where you want the restored data to be saved.

Method 2: Encrypted file recovery with a lately created Windows backup

This method is technically for those who have a lately created Windows backup saved somewhere and is not affected by the ransomware. Using inbuilt system recovery services, the backup can restore the files which are included under the backup. This method is considered easier as well and leaves no software, thus considered as a very popular method to fight against emergencies caused by infectious malware. Here are the steps to follow:

Step 1: Hit Win + R key combination and to execute Run command line.

Step 2: In the Run text field, type ‘ms-settings:windowsupdate’ and hit the OK button.

Step 3: You will be shown Windows update settings, but you have actually to click Backup option as shown in picture, and located in left pane.

Step 4: Click on ‘More Options’ to open Backup Options panel.

Step 5: As shown in the image below, select or click on “Restore files from a current backup.”

Step 6: In the next shown window, locate the backup where you have saved it, and click on restore button below as marked in the image.

Methods 3: Using Shadow Explorer Application

This file recovery solution is recommended to those who have their backup but is currently not working, still the files under backup are not yet deleted. In this case, Shadow Explorer is an application that can help you restoring your files from those backup files which are active, but still disabled by ransomware somehow. Under this circumstance, inbuilt Windows Backup and Recovery option will not work for you, rather the software will do the magic easily. To accomplish file recovery in this case, get through the steps here mentioned:

Step 1: Click the button below to download Shadow Explorer on your computer.

Step 2: Browser the location where you have downloaded the file. Double click and extract the zip file.

Step 3: Click to open ShadowExplorerPortable directory and double click on the file as shown in the image below.

Step 4: A drop down menu will appear on screen, so just select a desired Date and time according to your requirements on the top left of Shadow Explorer app, and choose the files in given interface that you want to restore using the software. Once the selection is done, Click on the button Export..

Methods 4: Using other decryptors

Well, this method might sounds a bit weird as every ransomware identity basically uses different enciphers and methods to encrypt files on targeted computers. But when the a ransomware which has actually infected your machine comes from a ransomware family for which a decryptor is officially working and available as well, then this might work for you. Technically, this method is just based on luck and analysis, still many users have reported this worked for them. So, if you have seen a ransomware has infected your computer, the very first thing you should do is to identity what kind of virus has actually affected your machine. In most of the cases, ransomware attacks are irreversible, still those infections basically comes from a parent ransomware which might be cracked earlier. For an instance, Scarab ransomware or Hiddentear ransomware are some families which can be decrypted. To check your luck if the present ransomware that has affected your machine is decryptable or not. To do so, follow the guidelines below:

Step 1: Check the Ransomware Database Here and check if decryptor is available for the malware

Step 2: In case you find no results, you can check an open source project called NoMoreRansom to find the ransomware details and decryptor, which has affected your machine. If found, download the decryptor on your computer’s local drive. This page is being regularly updated by its officials once a ransomware is discovered in world.

Step 3: Before you proceed with the downlaoded decryptor, make sure you have backup all your important files.

Step 4: Execute the decryptor to scan and restore your files easily.

Recommended Ransomware Removal & File Restoration Guide

NOSU ransomware is extremely robust in its nature to encrypt your files, and unless the threat is removed completely, file recovery is technically not possible. To do complete removal of NOSU ransomware out of your computer. Downlaod Spyhunter Anti-Spyware Tool Now.

After the infection is completely removed out of your compromised system, you may further process the encrypted file recovery either with your own lately created backup file. Or choose a trusted data recovery program to restore your data. Download a suggested recovery tool.