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Gujd Virus Files

What Is Gujd Virus?

gujd virus remove gujd ransomware removal guide sensorstechforum

The Gujd virus is a ransomware infection that is part of the STOP Ransomware family of viruses. This malware’s main goal is to get into your computer and encrypt the files in it, adding the .gujd extension to the files. The ransomware then leaves a ransom note file, carrying the name _readme.txt that contains a ransom extortion message, whose main goal is to provide you with instructions on how to buy BitCoin and contact the criminals’ e-mail addresses to discuss how you can pay it if you want to see your files again.

Read this article to learn how you can remove the Gujd virus safely and see ways you can try and restore your encrypted files.

Gujd Virus Summary

Name Gujd, also known as UDS:Trojan.Win32.Chapak.gen, Ransom:Win32/StopCrypt.KM!MTB, Win32:PWSX-gen [Trj], Win32:PWSX-gen [Trj], A Variant Of Win32/GenKryptik.FHJB
File Extension .gujd
Type Ransomware, Cryptovirus
Short Description The ransomware encrypts files on your computer system and demands a ransom to be paid to allegedly recover them.
Symptoms The Gujd ransomware will encrypt your files by appending the .gujd extension to them.
Ransom Demanding Note _readme.txt
Distribution Method Spam Emails, Email Attachments
Detection Tool See If Your System Has Been Affected by malware

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Malware Removal Tool

Gujd File Virus – Main Activity Report

In a similar way to the latest variants of STOP Ransomware, like .zzla, .wwka and .lssr, the Gujd virus may also use the following methods to infect computers:

  • If the file is downloaded from some shady website.
  • Via e-mail.

Gujd virus has been created mainly to cause havoc on your computer and encrypt your files. If it infects it via e-mail, then the criminals pretend that attached files to this message are very important for you, for example:

  • Invoices.
  • Purchase completed types of documents.
  • Something work-related.
  • Flight tickers.

Furthermore, may users report being infected with the variants of this virus by downloading some file they were looking for online, for example:

  • Keygen (key generator).
  • Portable program.
  • Patch.
  • Setup for a freeware app.
  • Crack.
  • Gujd virus may drop its malicious files in the following Windows folders once it causes an infection:

    • %Temp%
    • %locallow%
    • %AppData%
    • %local%

    Gujd virus may begin to add registry values in the following Windows sub-keys:

    • RunOnce.
    • Run.

    The outcome of this is that the Gujd ransomware may automatically start each time you boot your Windows OS.

    The virus also makes sure that its victims see the _readme.txt ransom note file, that has the following contents:

    STOP ransomware virus ransom message

    .gujd Files

    This ransomware virus is the kind of malware that targets only the files you use, without causing harm to system files of Windows. The main idea of the virus is to attack and change blocks of data of the following types of files:

    • Documents.
    • Audio.
    • Images.
    • Videos.
    • Archives.
    • Other.

    Gujd virus then leaves the files to appear in the following format:

    File.jpg.gujd

    Remove Gujd Virus and Try to Restore Files

    If you want to remove Gujd virus from your computer, then we strongly advise that you check the free removal steps that have been posted below. These steps are made primarily to help you detect and delete this ransomware virus either by yourself or automatically. This ransomware should best be removed using advanced anti-malware software. The main idea of this software is to detect and remove all of the virus files of this ransomware and protect your computer in the future as well. If you want to try and get your files back, but you cannot find a decryptor for the .gujd files yet, then the alternative methods for file recovery below are a good idea to try. They may not be 100% effective, but with their aid, you may be able to restore as many files as possible.

    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 1
    • Step 2
    • Step 3
    • Step 4
    • Step 5

    Step 1: Scan for Gujd 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 Gujd 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 Gujd 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 Gujd 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 Gujd 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 Gujd 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 Gujd 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.


    Gujd Virus-FAQ

    What is Gujd Virus Ransomware?

    Gujd 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 Gujd 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 Gujd Virus Infect?

    Via several ways.Gujd 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 Gujd 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 .Gujd Virus files?

    You can't without a decryptor. At this point, the .Gujd 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 .Gujd Virus files successfully, then do not despair, because this virus is still new.

    Can I Restore ".Gujd Virus" Files?

    Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .Gujd 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 Gujd 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 Gujd Virus ransomware and then remove it without causing any additional harm to your important .Gujd 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 Gujd 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 Gujd Virus Research

    The content we publish on SensorsTechForum.com, this Gujd 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 Gujd 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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