Jhash ransomware removal instructions
What is Jhash?
Discovered by MalwareHunterTeam, Jhash is a virus based on an open-source ransomware project called Hidden Tear. Once infiltrated, Jhash encrypts most stored data using AES cryptography and adds the ".locky" extension to the name of each compromised file. Following successful encryption, Jhash creates a text file ("Leeme_Nota_de_Rescate.txt"), placing it on the desktop, and changes the desktop wallpaper.
The new text file contains detailed information regarding the encryption and instructs users what to do next. The entire text is in Spanish and, therefore, it is safe to assume that criminals target users mainly from Spain. This message states that files are encrypted and demands a ransom payment in exchange for decryption. As mentioned above, Jhash uses the AES encryption algorithm, which creates a single key (used to encrypt and decrypt files) uniquely for each victim. Developers store the generated keys on a remote server and, for this reason, users are encouraged to pay a ransom. Note that the cost is extremely low - $10. Typically, size of ransoms fluctuate between $500 and $1500. In addition, Jhash's developers do not use cryptocurrency - they ask users to send their money via an online payment platform called Payza. There is a high probability that these people are untrustworthy. Never trust these cyber criminals. Research shows that they commonly ignore victims, once payments are submitted. Paying does not guarantee that your files will ever be decrypted and you will probably be scammed. We strongly advise you to ignore all requests to contact these people or pay any ransoms. Unfortunately, there are no tools capable of restoring files encrypted by Jhash. Therefore, the only solution is to restore files/system from backup.
Screenshot of a message encouraging users to pay a ransom to decrypt their compromised data:
Jhash is virtually identical Powerful Hidden Tear, GIBON, Teamo, Losers, and dozens of other ransomware-type viruses. Although, these viruses are developed by different cyber criminals, their behavior is identical - all encrypt files and make ransom demands. The only major differences are size of ransom and type of encryption algorithm used. Unfortunately, most of these viruses employ symmetric/asymmetric algorithms (e.g., AES, RSA, etc.) that generate unique decryption keys. Therefore, restoring files manually (without developers' help) is impossible, unless the malware contains bugs/flaws (e.g., stores the key locally or it is hard-coded). For these reasons, ransomware-type viruses present a strong case for maintaining regular data backups. Bear in mind, however, that your backup files should be stored on remote servers (such as Clouds) or unplugged hard drives, otherwise they will also be encrypted.
How did ransomware infect my computer?
How to protect yourself from ransomware infections?
The key to computer safety and, for this reason, it is important to pay close attention when browsing the Internet. Never open attachments received from suspicious email addresses. In fact, these emails should be deleted immediately, without reading. Furthermore, download your software from official sources only and, if possible, using a direct download link. Third party downloaders/installers often include malicious apps. Therefore, never use these tools. Keep installed applications up-to-date and use a legitimate anti-virus/anti-spyware suite, however, software should be updated using official tools only, since criminals often proliferate ransomware via fake ones.
Message presented in Jhash ransomware text file ("Leeme_Nota_de_Rescate.txt"):
Esta computadora ha sido hackeada
Tu informacion personal ha sido encriptada. Envianos 10 dólares por medio de PAYZA a la siguiente dirección de pago: firstname.lastname@example.org , y al mismo correo enviaras un capture de la transacción.
Después de eso, te enviaremos los pasos a seguir para recuperar tus preciados archivos.
Un paso en falso y perderás todos tus archivos, no te equivoques, Jhash
Screenshot of Jhash desktop wallpaper:
Screenshot of files encrypted by Jhash (".locky" extension):
Jhash ransomware removal:
- What is Jhash?
- STEP 1. Jhash virus removal using safe mode with networking.
- STEP 2. Jhash ransomware removal using System Restore.
Windows XP and Windows 7 users: Start your computer in Safe Mode. Click Start, click Shut Down, click Restart, click OK. During your computer start process, press the F8 key on your keyboard multiple times until you see the Windows Advanced Option menu, and then select Safe Mode with Networking from the list.
Video showing how to start Windows 7 in "Safe Mode with Networking":
Windows 8 users: Start Windows 8 is Safe Mode with Networking - Go to Windows 8 Start Screen, type Advanced, in the search results select Settings. Click Advanced startup options, in the opened "General PC Settings" window, select Advanced startup. Click the "Restart now" button. Your computer will now restart into the "Advanced Startup options menu". Click the "Troubleshoot" button, and then click the "Advanced options" button. In the advanced option screen, click "Startup settings". Click the "Restart" button. Your PC will restart into the Startup Settings screen. Press F5 to boot in Safe Mode with Networking.
Video showing how to start Windows 8 in "Safe Mode with Networking":
Windows 10 users: Click the Windows logo and select the Power icon. In the opened menu click "Restart" while holding "Shift" button on your keyboard. In the "choose an option" window click on the "Troubleshoot", next select "Advanced options". In the advanced options menu select "Startup Settings" and click on the "Restart" button. In the following window you should click the "F5" button on your keyboard. This will restart your operating system in safe mode with networking.
Video showing how to start Windows 10 in "Safe Mode with Networking":
Log in to the account infected with the Jhash virus. Start your Internet browser and download a legitimate anti-spyware program. Update the anti-spyware software and start a full system scan. Remove all entries detected.
Download remover for Jhash virus
1) Download and install 2) Run system scan 3) Enjoy your clean computer!
If you cannot start your computer in Safe Mode with Networking, try performing a System Restore.
Video showing how to remove ransomware virus using "Safe Mode with Command Prompt" and "System Restore":
1. During your computer start process, press the F8 key on your keyboard multiple times until the Windows Advanced Options menu appears, and then select Safe Mode with Command Prompt from the list and press ENTER.
2. When Command Prompt mode loads, enter the following line: cd restore and press ENTER.
3. Next, type this line: rstrui.exe and press ENTER.
4. In the opened window, click "Next".
5. Select one of the available Restore Points and click "Next" (this will restore your computer system to an earlier time and date, prior to the Jhash ransomware virus infiltrating your PC).
6. In the opened window, click "Yes".
7. After restoring your computer to a previous date, download and scan your PC with recommended malware removal software to eliminate any remaining Jhash ransomware files.
To restore individual files encrypted by this ransomware, try using Windows Previous Versions feature. This method is only effective if the System Restore function was enabled on an infected operating system. Note that some variants of Jhash are known to remove Shadow Volume Copies of the files, so this method may not work on all computers.
To restore a file, right-click over it, go into Properties, and select the Previous Versions tab. If the relevant file has a Restore Point, select it and click the "Restore" button.
If you cannot start your computer in Safe Mode with Networking (or with Command Prompt), boot your computer using a rescue disk. Some variants of ransomware disable Safe Mode making its removal complicated. For this step, you require access to another computer.
To protect your computer from file encryption ransomware such as this, use reputable antivirus and anti-spyware programs. As an extra protection method, you can use programs called HitmanPro.Alert and EasySync CryptoMonitor, which artificially implant group policy objects into the registry to block rogue programs such as Jhash ransomware.
Note that the Windows 10 Fall Creators Update includes a "Controlled Folder Access" feature that blocks ransomware attempts to encrypt your files. By default, this feature automatically protects files stored in the Documents, Pictures, Videos, Music, Favorites as well as Desktop folders.
Windows 10 users should install this update to protect their data from ransomware attacks. Here is more information on how to get this update and add an additional protection layer from ransomware infections.
HitmanPro.Alert CryptoGuard - detects encryption of files and neutralises any attempts without need for user-intervention:
Malwarebytes Anti-Ransomware Beta uses advanced proactive technology that monitors ransomware activity and terminates it immediately - before reaching users' files:
- The best way to avoid damage from ransomware infections is to maintain regular up-to-date backups. More information on online backup solutions and data recovery software Here.
Other tools known to remove Jhash ransomware: