What Is Jjtt Virus?
Jjtt virus is the name of the ransomware infection, belonging to a large scale operation, also known as STOP/DJVU. This is a virus that enters your computer without your knowledge or consent and attacks your files, encrypting them and adding the .jjtt file extension after their original one. The virus’s primary objective is to get you to pay a lot of money in the form of Bitcoin by contacting the cybercriminals, via email, as mentioned in its ransom note file, that is dropped after the infection and carries the name _readme.txt.
Read this article to learn more information about how this virus enters your computer, how does it work and how we can remove it and try to get your files to work again.
Jjtt Virus Summary
| Name | Jjtt virus, 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 – more detections of this virus on VirusTotal |
| File Extension | .jjtt |
| 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 Jjtt Virus ransomware will encrypt your files by appending the .Jjtt extension to them. |
| Ransom Demanding Note | _readme.txt |
| Distribution Method | Spam Emails, Email Attachments |
| Detection Tool |
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Jjtt Virus – How Did I Get Infected?
Jjtt virus is very similar to other recently detected versions of this ransomeware strain, also known as .bbbw, .ckae and .bbbr and .avyu.
Two types of methods exist, via which you can get the virus on your computer:
- If it is sent to you as an e-mail attachment or a URL.
- By being downloaded from a shady site.
Jjtt virus may enter your computer if it is an email attachment. If this is the case, then the virus may appear like it is a legitimate and important document, like one of the latter:
- Work-related files.
- Receipts.
- Invoices.
- E-Tickets for events or flights.
Jjtt virus may use those documents to infect your computer system while taking advantage of a malicious macro cool that may be in bed within them. This may trigger the following infection process, once the file is downloaded and opened on your computer:
Jjtt virus may also wait patiently for you to download its infection file. If this is the case, then the files that are downloaded and contained the infection itself, most often appear like the following:
- Software patches.
- Self extracting archives or regular archives.
- Fake installation files.
- Cracked portable versions of apps.
- Software or game cracks.
- Key generator (or Keygen).
Jjtt Virus – What Does It Do?
Jjtt virus may perform a number of different malicious activities in your computer once it has been added to it. The first one of them is to connect to a remote server from where it downloads the malicious files, that are used to attack your data. These files often have random names and may be dropped in the following Windows directories under different names:
- %Windows%
- %SystemDrive%
- %LocalLow%
- %AppData%
- %Local%
- %Temp%
- %System%
- %system32%
Jjtt virus may also leave the _readme.txt ransom note, that has the extortionists’ instructions:
Among the activity of this ransomware is to also attack your Windows Registries and add multiple forms of entries, like in the following sub-keys:
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
Doing so will allow the virus to perform different types of activities without your consent like running automatically on start up, for example.
What Are .jjtt Files
Jjtt virus may encrypt your files, using the AES encryption algorithm, which makes them no longer openable, even if you remove the .jjtt extension. The main reason for that is because the files have the core data in them changed, with the data of the algorithm. This particular ransomware infection attacks files, that have the following extensions:
- Audio (.mp3, .wav, etc.).
- Picture file kinds (.jpg, .png, .etc).
- Videos (.mp4, .avi, etc.).
- Archive file formats (.zip, .rar, etc).
- Documents of different types (.docx, .pptx, etc.).
- Others.
After the encryption process has been completed, the virus generates two types of decryption keys – off-line and online, with the latter being much harder to decrypt. The files are added the .jjtt file extension after their original one, making them look like the following example shows:
Picture.jpg.jjtt
How to Remove Jjtt Virus?
In order to remove the Jjtt infection from your computer system, our main suggestion is to follow the removal instructions we have created beneath this guide. These steps are specifically made with the main idea to assist you in removing the virus either by yourself or automatically. Be advised, that the most effective way of removal is to do it automatically, by downloading and I’m running a scan of your computer system, using an advanced anti-malware software. Such a program was specifically created to thoroughly check your device and remove any malicious files that belong to such viruses plus protect your machine in the future.
How to Decrypt .jjtt Files?
To decrypt the offline key files, the best way is to follow the STOP Ransomware Decryption Steps or watch the decryption guide video below. They contain the use of the official decryptor software for this virus, that has been made by independent now researchers and should be able to work for offline keys. If your key is online, then we suggest that you do not despair, and follow the alternative file recovery methods that have been mentioned in the guide below. They may not come with a 100% guarantee of success, but with their help, you could be able to recover at least some of the files.
Video guide for using the STOP Ransomware Decryptor:
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: Scan for Jjtt with SpyHunter Anti-Malware Tool
Ransomware Automatic Removal - Video Guide
Step 2: Uninstall Jjtt 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:
Follow the instructions above and you will successfully delete most unwanted and malicious programs.
Step 3: Clean any registries, created by Jjtt 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 Jjtt there. This can happen by following the steps underneath:
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.
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 Jjtt
Step 5: Try to Restore Files Encrypted by Jjtt.
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:
2. Agree with the license terms:
3. Click on "Add Folder" and then add the folders where you want files decrypted as shown underneath:
4. Click on "Decrypt" and wait for your files to be decoded.
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 Jjtt 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.
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.
Jjtt-FAQ
What is Jjtt Ransomware?
Jjtt 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 Jjtt 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 Jjtt Infect?
Via several ways.Jjtt 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 Jjtt 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 .Jjtt files?
You can't without a decryptor. At this point, the .Jjtt 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 .Jjtt files successfully, then do not despair, because this virus is still new.
Can I Restore ".Jjtt" Files?
Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .Jjtt 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 Jjtt 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 Jjtt ransomware and then remove it without causing any additional harm to your important .Jjtt 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 Jjtt 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 Jjtt Research
The content we publish on SensorsTechForum.com, this Jjtt 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 Jjtt 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.