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.jupstb Files Virus – How to Remove It

This article has been created with the main idea to you in explaining what is the .jupstb files virus and how you can remove it effectively from your computer.

New form of ransomware has recently been detected by security researcher GrujaRS. The virus is from the crypto kind of ransomware, meaning it renders your files temporary useless via encryption until you pay ransom to get them to work again. The .jupstb files virus also leaves behind the Readme_Restore_Files.txt ransom note, that aims to convince users that their only choice is to contact the criminals to negotiate the payment they must make for their files. If your computer has been infected with the .jupstb files virus, we recommend that you read this article.

Threat Summary

Name .juststb Files Virus
Type Ransomware, Cryptovirus
Short Description A cryptovirus that aims to encode the files on your computer and then demand ransom to get the files working once again.
Symptoms Files have the .jupstb file extension and can no longer be opened. The ransomware adds a ransom note, called Readme_Restore_Files.txt, asking to contact the crooks.
Distribution Method Spam Emails, Email Attachments, Executable files
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Data Recovery Tool Windows 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.

.jupstb Files Virus -Distribution Methods

For the .jupstb file ransomware to be spread onto the computers of users, the virus may arrive via different methods. It often arrives via a main infection file, which has been reported by malware researchers to be the following:

→ SHA-256: a43f964264c8a0817151d9b380ee65efa2dc179de9d32c1695b4be5b487f4436
File name:a43f964264c8a0817151d9b380ee65efa2dc179de9d32c1695b4be5b487f4436.exe
File size:3.64 MB

If we pay attention to the file, it can arrive via several means, the first and most likely of which could be a malicious script that may be affecting victims either via a web link or an infected Microsoft Office document (.docx, .docm). If the file manages to infect victims via Microsoft Office, then it may be spread as a result of malicious macros being directly added to the compromised computer.

In addition to this, the ransomware virus may also infect by being sent to users via e-mail. Such e-mails often tend to convince victims to download and run the malicious file themselves, making it seem that the file is a legitimate document, like:

  • Invoice.
  • Receipt.
  • Work-related document.
  • “Account compromised” info file.

Opening the file attachment may result in an infection based on the file type attached itself. More information on the different Windows malicious file types can be seen underneath:

Related: [wplinkpreview url=”https://sensorstechforum.com/file-types-used-malware-2019/”]Windows File Types Used by Malware (2019)

.jupstb Files Virus – Analysis

The .jupstb file ransomware may drop the several malicious files onto the computers of victims upon infecting them and these files may be randomly named or may resemble legitimate programs. They may reside in the following Windows directories:

  • %AppData%
  • %Local%
  • %LocalLow%
  • %Roaming%
  • %Temp%

In addition to this, the .jupstb ransomware may also drop the ransom note file, containing the virus’ extortinist message:

Readme_Restore_Files.txt

The ransomware first begins to drop a randomly named file on the desktop of the victim computer. Shortly after this is done, the viurs changes the wallpaper of the infected computer to black and encrypts the files. The ransomware virus may also perform other activities on the victim’s computer, such as:

  • Modify the registry editor.
  • Delete the volume shadow copies on the victim PC. Obtain administrator permissions.
  • Collect system information from your computer.

If the .jupstb ransomware tries to collect information from your compter, it will most likely be the following:

  • Network information.
  • OS version and architecture.
  • Language and Region data.

In addition to this, the ransomware may also create mutexes on your computer that may allow it to escalate the privileges of the virus files it activates.

.jupstb Files Virus – Encryption Process

The .jupstb files virus is the type of infection that may encrypt your files using advanced encryption algorithms. These ciphers may render your files temporary obsolete by replacing key data in them. Te .jupstb virus may not encrypt your whole files but only batches of data in them, enough to make them unable to be opened.

The .jupstb file ransomware may then add its distinctive file extension to the encrypted files, making them appear like the following:

Remove .jupstb Files Virus and Try Recovering Your Data

If you want to remove this ransomware, please do not tamper with your files, since this may lead to their permanent breaking. Instead, try to save all the encrypted files in a flash drive or another external memory carrier.

For the removal of the .jupstb files virus, we recommend that you follow the removal manual underneath. If manual removal does not succeed in removing files, encrypted by this ransomware virus, we recommend that you remove this virus automatically, preferably with the aid of an advanced anti-malware software. Such tool will get your files removed automatically by scanning for them and deleting them.

If you want to try and restore files, encrypted by this virus, we recommend that you follow the removal instructions underneath this article. They have been made to help restore most of your encrypted files, even though they may not be 100% effective.

Ventsislav Krastev

Ventsislav is a cybersecurity expert at SensorsTechForum since 2015. He has been researching, covering, helping victims with the latest malware infections plus testing and reviewing software and the newest tech developments. Having graduated Marketing as well, Ventsislav also has passion for learning new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management, Network Administration and Computer Administration of System Applications, he found his true calling within the cybersecrurity industry and is a strong believer in the education of every user towards online safety and security.

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  • Step 5

Step 1: Scan for .juststb Files Virus with SpyHunter Anti-Malware Tool

1. Click on the "Download" button to proceed to SpyHunter's download page.


It is 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. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria.


2. After you have installed SpyHunter, wait for it to update automatically.

scan for and delete ransomware virus step 2


3. After the update process has finished, click on the 'Malware/PC Scan' tab. A new window will appear. Click on 'Start Scan'.

scan for and delete ransomware virus step 3


4. After SpyHunter has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the 'Next' button.

scan for and delete ransomware virus step 4

If any threats have been removed, it is highly recommended to restart your PC.

Ransomware Automatic Removal - Video Guide

Step 2: Uninstall .juststb Files Virus and related malware from Windows

Here is a method in few easy steps that should be able to uninstall most programs. No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it. To do that:


1. Hold the Windows Logo Button and "R" on your keyboard. A Pop-up window will appear.
delete ransomware from windows step 1


2. In the field type in "appwiz.cpl" and press ENTER.
delete ransomware from windows step 2


3. This will open a window with all the programs installed on the PC. Select the program that you want to remove, and press "Uninstall"
delete ransomware from windows step 3Follow the instructions above and you will successfully delete most unwanted and malicious programs.


Step 3: Clean any registries, created by .juststb Files Virus on your computer.

The usually targeted registries of Windows machines are the following:

  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce

You can access them by opening the Windows registry editor and deleting any values, created by .juststb Files Virus there. This can happen by following the steps underneath:

1. Open the Run Window again, type "regedit" and click OK.
delete ransomware virus registries step 1


2. When you open it, you can freely navigate to the Run and RunOnce keys, whose locations are shown above.
delete ransomware virus registries step 2


3. You can remove the value of the virus by right-clicking on it and removing it.
delete ransomware virus registries step 3 Tip: To find a virus-created value, you can right-click on it and click "Modify" to see which file it is set to run. If this is the virus file location, remove the value.

IMPORTANT!
Before starting "Step 4", please boot back into Normal mode, in case you are currently in Safe Mode.
This will enable you to install and use SpyHunter 5 successfully.

Step 4: Boot Your PC In Safe Mode to isolate and remove .juststb Files Virus

OFFER

Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your PC with SpyHunter

Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter's malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria

1. Hold Windows Key + R.
remove ransomware in safe mode step 1


2. The "Run" Window will appear. In it, type "msconfig" and click OK.
remove ransomware in safe mode step 2


3. Go to the "Boot" tab. There select "Safe Boot" and then click "Apply" and "OK".
remove ransomware in safe mode step 3
Tip: Make sure to reverse those changes by unticking Safe Boot after that, because your system will always boot in Safe Boot from now on.


4. When prompted, click on "Restart" to go into Safe Mode.
remove ransomware in safe mode step 4


5. You can recognise Safe Mode by the words written on the corners of your screen.
remove ransomware in safe mode step 5


Step 5: Try to Restore Files Encrypted by .juststb Files Virus.

Method 1: Use STOP Decrypter by Emsisoft.

Not all variants of this ransomware can be decrypted for free, but we have added the decryptor used by researchers that is often updated with the variants which become eventually decrypted. You can try and decrypt your files using the instructions below, but if they do not work, then unfortunately your variant of the ransomware virus is not decryptable.

Follow the instructions below to use the Emsisoft decrypter and decrypt your files for free. You can download the Emsisoft decryption tool linked here and then follow the steps provided below:

1 Right-click on the decrypter and click on Run as Administrator as shown below:

stop ransomware decryptor step 1

2. Agree with the license terms:

stop ransomware decryptor step 2

3. Click on "Add Folder" and then add the folders where you want files decrypted as shown underneath:

stop ransomware decryptor step 3

4. Click on "Decrypt" and wait for your files to be decoded.

stop ransomware decryptor step 4

Note: Credit for the decryptor goes to Emsisoft researchers who have made the breakthrough with this virus.

Method 2: Use data recovery software

Ransomware infections and .juststb Files Virus aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.

1. Download the recommended Data Recovery software by clicking on the link underneath:

Simply click on the link and on the website menus on the top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.


.juststb Files Virus-FAQ

What is .juststb Files Virus Ransomware?

.juststb Files Virus is a ransomware infection - the malicious software that enters your computer silently and blocks either access to the computer itself or encrypt your files. 

Many ransomware viruses use sophisticated encryption algorithms to make your files inaccessible. The goal of ransomware infections is to demand that you pay a ransom payment to get access to your files back.

What Does .juststb Files Virus Ransomware Do?

Ransomware in general is a malicious software that is designed to block access to your computer or files until a ransom is paid.

Ransomware viruses can also damage your system, corrupt data and delete files, resulting in the permanent loss of important files.

How Does .juststb Files Virus Infect?

Via several ways..juststb Files Virus Ransomware infects computers by being sent via phishing emails, containing virus attachment. This attachment is usually masked as an important document, like an invoice, bank document or even a plane ticket and it looks very convincing to users.

Another way you may become a victim of .juststb Files Virus is if you download a fake installer, crack or patch from a low reputation website or if you click on a virus link. Many users report getting a ransomware infection by downloading torrents.

How to Open ..juststb Files Virus files?

You can't without a decryptor. At this point, the ..juststb Files Virus files are encrypted. You can only open them once they are decrypted using a specific decryption key for the particular algorithm.

What to Do If a Decryptor Does Not Work?

Do not panic, and backup the files. If a decryptor did not decrypt your ..juststb Files Virus files successfully, then do not despair, because this virus is still new.

Can I Restore "..juststb Files Virus" Files?

Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore ..juststb Files Virus files. 

These methods are in no way 100% guaranteed that you will be able to get your files back. But if you have a backup, your chances of success are much greater.

How To Get Rid of .juststb Files Virus Virus?

The safest way and the most efficient one for the removal of this ransomware infection is the use a professional anti-malware program.

It will scan for and locate .juststb Files Virus ransomware and then remove it without causing any additional harm to your important ..juststb Files Virus files.

Can I Report Ransomware to Authorities?

In case your computer got infected with a ransomware infection, you can report it to the local Police departments. It can help authorities worldwide track and determine the perpetrators behind the virus that has infected your computer.

Below, we have prepared a list with government websites, where you can file a report in case you are a victim of a cybercrime:

Cyber-security authorities, responsible for handling ransomware attack reports in different regions all over the world:

Germany - Offizielles Portal der deutschen Polizei

United States - IC3 Internet Crime Complaint Centre

United Kingdom - Action Fraud Police

France - Ministère de l'Intérieur

Italy - Polizia Di Stato

Spain - Policía Nacional

Netherlands - Politie

Poland - Policja

Portugal - Polícia Judiciária

Greece - Cyber Crime Unit (Hellenic Police)

India - Mumbai Police - CyberCrime Investigation Cell

Australia - Australian High Tech Crime Center

Reports may be responded to in different timeframes, depending on your local authorities.

Can You Stop Ransomware from Encrypting Your Files?

Yes, you can prevent ransomware. The best way to do this is to ensure your computer system is updated with the latest security patches, use a reputable anti-malware program and firewall, backup your important files frequently, and avoid clicking on malicious links or downloading unknown files.

Can .juststb Files Virus Ransomware Steal Your Data?

Yes, in most cases ransomware will steal your information. It is a form of malware that steals data from a user's computer, encrypts it, and then demands a ransom in order to decrypt it.

In many cases, the malware authors or attackers will threaten to delete the data or publish it online unless the ransom is paid.

Can Ransomware Infect WiFi?

Yes, ransomware can infect WiFi networks, as malicious actors can use it to gain control of the network, steal confidential data, and lock out users. If a ransomware attack is successful, it could lead to a loss of service and/or data, and in some cases, financial losses.

Should I Pay Ransomware?

No, you should not pay ransomware extortionists. Paying them only encourages criminals and does not guarantee that the files or data will be restored. The better approach is to have a secure backup of important data and be vigilant about security in the first place.

What Happens If I Don't Pay Ransom?

If you don't pay the ransom, the hackers may still have access to your computer, data, or files and may continue to threaten to expose or delete them, or even use them to commit cybercrimes. In some cases, they may even continue to demand additional ransom payments.

Can a Ransomware Attack Be Detected?

Yes, ransomware can be detected. Anti-malware software and other advanced security tools can detect ransomware and alert the user when it is present on a machine.

It is important to stay up-to-date on the latest security measures and to keep security software updated to ensure ransomware can be detected and prevented.

Do Ransomware Criminals Get Caught?

Yes, ransomware criminals do get caught. Law enforcement agencies, such as the FBI, Interpol and others have been successful in tracking down and prosecuting ransomware criminals in the US and other countries. As ransomware threats continue to increase, so does the enforcement activity.

About the .juststb Files Virus Research

The content we publish on SensorsTechForum.com, this .juststb Files Virus how-to removal guide included, is the outcome of extensive research, hard work and our team’s devotion to help you remove the specific malware and restore your encrypted files.


How did we conduct the research on this ransomware?

Our research is based on an independent investigation. We are in contact with independent security researchers, and as such, we receive daily updates on the latest malware and ransomware definitions.

Furthermore, the research behind the .juststb Files Virus ransomware threat is backed with VirusTotal and the NoMoreRansom project.

To better understand the ransomware threat, please refer to the following articles which provide knowledgeable details.


As a site that has been dedicated to providing free removal instructions for ransomware and malware since 2014, SensorsTechForum’s recommendation is to only pay attention to trustworthy sources.

How to recognize trustworthy sources:

  • Always check "About Us" web page.
  • Profile of the content creator.
  • Make sure that real people are behind the site and not fake names and profiles.
  • Verify Facebook, LinkedIn and Twitter personal profiles.

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