How to remove YRNB file virus and recover encrypted files

Easy stepwise guide to delete YRNB file virus and restore files

YRNB file virus is a name of a dangerous computer virus belongs to STOP/DJVU ransomware family. The malware is designed to get the victims pay ransom in Bitcoin or other cryptocurrencies if they want to access their files on their system anymore. The main idea of the ransomware is to encode the files using some strong cipher algorithm and force the users to use a unique decryption tool/ software belongs to the crooks behind the ransomware. The crooks provide the instruction on how to get this tool by paying the ransom fee in a file named _readme.txt file.

Read this article to get the information more about YRNB file virus and know how you can remove this virus from the system and recover the files without negotiating with the crooks behind the ransomware.

Threat Summary

Name: YRNB file virus

Threat Type: Ransomware

Extension use:  .YRNB

Ransom demanding note: _readme.txt

Ransom amount: $980/$490

Cyber criminals’ contact:  [email protected], [email protected]

Symptoms: Cannot open the files stored on the device, previous functional files now have a different extension. A ransom demand message is displayed on the desktop. Cyber criminals demand payment of a ransom to for unlocking the files

Additional information: This malware is designed to show a fake Windows Update Window and modify the Windows hosts file in order to prevent users from accessing security websites online

Distribution methods: Infected email attachments (macros), torrent websites, malicious ads, unofficial activation and updating tools

Damage: All files are encrypted and cannot be opened without paying a ransom. Additional password stealing Trojan or other malware infections can be installed together with a ransomware infection

Malware removal: Use some reputable antivirus tool or follow manual malware removal guide provided below the post to remove YRNB file virus from the device

Files recovery: Existing backup is the safe and secure option to get the files back in the original accessible condition. Other data recovery options include Volume Shadow Copy or data recovery tools -check the data removal section below the post for the step by step guide for performing them

YRNB file virus– more information

The YRNB file virus enters the systems through the common tactics as used by other variants of STOP/DJVU Ransomware. The two primary methods used by these applications are:

• Spam emails – These emails contain infectious files or links for such files as attachments. The attachments are typically presented as invoices, aircraft tickets and others.
• Untrustworthy downloading channels – these channels include p2p networks, free file hosting sites and third party downloaders/ installers. They offer malware by presenting them as legit software.

Once the malware infiltrates systems, it connects to the server of the crooks behind it. Various malicious files that support the behavior and function of the malicious malware are then dropped by them. These files can be found in the Windows directories with random names such as %ProgramData%, %Windows%, %System%, %system32%, %Roaming%, %Local%, %AppData%, %LocalLow% and %Temp%.

Among the files dropped by YRNB file virus is _readme.txt ransom note that provides the users the alleged instruction how to get the decryption tool by paying ransom fee to the crooks. Being a DJVU/STOP ransomware variants, the virus encrypts all stored files including Videos, Pictures, Databases, Archives, Anything conserved in a USB or other drive, Back-ups, Docs and Music and etc, using strong AES encryption algorithm.

These files can’t be accessed without using a unique decryption tool. This is a fact. However, there is no guarantee that the crooks will provide that tool once all their demands are met. Although, through the ransom note, they try to being very honest – they promise to provide the decryption tool once the payment is done, provide a video of how the decryption tool works, offer free decryption service before the payment to gain users’ trust and also offer huge discount.

These all are however, merely an attempt to trick people into fall for their scams and end up paying the ransom fee to them. Once the payment is received, they disappear leaving the victims without their files. So, if you proceed to pay, you will suffer financial loss and will have the files remain in encrypted form. Therefore, it is better if you think of some alternatives for the files recovery. The best option is to remove YRNB file virus and recover the files using backups you have.

Aside doing the files encryption (and renaming the files with .YRNP extension) and showing the ransom demanding fee, the ransomware may perform the following activities:

• Establishing a remote connection to the crooks running it,
• Creating windows registry entries in the Run or RunOnce Registry sub-keys,
• Running as administrator,
• Obtaining read and write authorities,
• Analyzing if the system was infected previously – so as to delete itself.

Now, you understand how much it is important to perform YRNB file virus removal. The malware removal is also necessary to initiate the files recovery process as the malware will not let you perform the files recovery till it presets. For the YRNB ransomware removal, follow our guide provided below the post. After successfully doing the removal process, use the backups you have and restore the files. If there is no backup option available -check if Shadow Copies are available (the automatically created backups from OS). For the complete guide, refer our data recovery section. Another data recovery option is to use existing backup you have.

Full text presented in _readme.txt file created by YRNB file virus:

ATTENTION!

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

All your files like pictures, 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:

hxxps://we.tl/t-9CYW99VhUR

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:

Precautious you should take to avoid infection

As already said, distributing the malware like YRNB file virus is most commonly found through spam email campaigns and untrustworthy downloading channels. Spam emails cause system infection when the virulent files in them are opened. In other word, you can prevent the system infection through any spam emails when you avoid opening the provided attachment files. To recognize any emails as spam, kindly check the email addresses – these are irrelevant, suspicious and unknown for you.

If you do not successfully find any difference, check the message content- they always have various grammatical errors and spelling mistakes. Untrustworthy downloading channels offer malicious malware by presenting it as some legit software. Various untrustworthy sources are p2p networks, free file hosting sites and third party downloaders/ installers. Instead of using these as the sources for the software download, prefer using official websites and direct links only. Also, attentive during the download/ installation process – at least choose the Custom/Advanced and perform the basic requirement so as to avoid any secret application installation.

Antimalware Details And User Guide

Click Here For Windows

Click Here For Mac

Step 1: Remove YRNB file virus through “Safe Mode with Networking”

Step 2: Delete YRNB file virus using “System Restore”

Step 1: Remove YRNB file virus 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 YRNB file virus using “System Restore”

Log-in to the account infected with YRNB file virus. 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 YRNB file virus 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 YRNB file virus 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 YRNB file virus 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 YRNB file virus, 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 YRNB file virus.

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 YRNB file virus?

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 YRNB file virus 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 YRNB file virus 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.