How to remove J4fsf ransomware and decrypt .[Random_string]. j4fsf files

What is J4fsf ransomware

delete j4fsf virus

J4fsf is a program that encrypts personal data and adds the extension .[Random_string] .j4fsf to restrict access to files. After the encryption process is over, the virus creates the file R7vw_HOW_TO_DECRYPT.txt as a text file:

Your network has been breached and all data were encrypted.
Personal data, financial reports and important documents are ready to disclose.

To decrypt all the data or to prevent exfiltrated files to be disclosed at
hxxp://hiveleakdbtnp76ulyhi52eag6c6tyc3xw7ez7iqy6wc34gd2nekazyd.onion/
you will need to purchase our decryption software.

Please contact our sales department at:

hxxp://hivecust6vhekztbqgdnkks64ucehqacge3dij3gyrrpdp57zoq3ooqd.onion/

Login: –
Password: –

To get access to .onion websites download and install Tor Browser at:
hxxps://www.torproject.org/ (Tor Browser is not related to us)

Follow the guidelines below to avoid losing your data:

– Do not shutdown or reboot your computers, unmount external storages.
– Do not try to decrypt data using third party software. It may cause
irreversible damage.
– Do not fool yourself. Encryption has perfect secrecy and it’s impossible
to decrypt without knowing the key.
– Do not modify, rename or delete *.key.j4fsf files. Your
data will be undecryptable.
– Do not modify or rename encrypted files. You will lose them.
– Do not report to authorities. The negotiation process will be terminated
immediately and the key will be erased.
– Do not reject to purchase. Your sensitive data will be publicly disclosed.

This post states that in order to decrypt files, you need to buy the decryption tools that
developers. However, previous cases of victims show that you cannot trust scammers if you do not want to be cheated. To get the files as they were, remove J4fsf ransomware.
Well, there are 2 options for solving this problem. The first is to use an automatic removal utility that will remove the threat and all instances related to it. Moreover, it will save you time. Or you can use the Manual Removal Guide, but you should know that it might be very difficult to remove J4fsf ransomware manually without a specialist’s help.
If for any reason you need to recover deleted or lost files, then check out our article Top 5 Deleted File Recovery Software

J4fsf Removal Guide

Warning alert
Remember that you need to remove J4fsf Ransomware first and foremost to prevent further encryption of your files before the state of your data becomes totally useless. And only after that, you can start recovering your files. Removal must be performed according to the following steps:

  1. Download J4fsf Removal Tool.
  2. Remove J4fsf from Windows (7, 8, 8.1, Vista, XP, 10) or Mac OS (Run system in Safe Mode).
  3. Restore J4fsf files
  4. How to protect PC from future infections.

How to remove J4fsf ransomware automatically:

I want to remove it

SpyHunter malware removal tool may help you to get rid of this virus and clean up your system. In case you need a proper and reliable antivirus, we recommend you to try it.

If you’re Mac user – use this.

Manual J4fsf Removal Guide

Here are step-by-step instructions to remove J4fsf from Windows and Mac computers. Follow these steps carefully and remove files and folders belonging to J4fsf . First of all, you need to run the system in a Safe Mode. Then find and remove needed files and folders.

Uninstall J4fsf from Windows or Mac

Here you may find the list of confirmed related to the ransomware files and registry keys. You should delete them in order to remove virus, however it would be easier to do it with our automatic removal tool. The list:

J4fsf .dll
_readme.txt
readme.txt

Windows 7/Vista:

  1. Restart the computer;
  2. Press Settings button;
  3. Choose Safe Mode;
  4. Find programs or files potentially related to J4fsf by using Removal Tool;
  5. Delete found files;

Windows 8/8.1:

  1. Restart the computer;
  2. Press Settings button;
  3. Choose Safe Mode;
  4. Find programs or files potentially related to J4fsf by using Removal Tool;
  5. Delete found files;

Windows 10:

  1. Restart the computer;
  2. Press Settings button;
  3. Choose Safe Mode;
  4. Find programs or files potentially related to J4fsf by using Removal Tool;
  5. Delete found files;

Windows XP:

  1. Restart the computer;
  2. Press Settings button;
  3. Choose Safe Mode;
  4. Find programs or files potentially related to J4fsf by using Removal Tool;
  5. Delete found files;

Mac OS:

  1. Restart the computer;
  2. Press and Hold Shift button, before system will be loaded;
  3. Release Shift button, when Apple logo appears;
  4. Find programs or files potentially related to J4fsf by using Removal Tool;
  5. Delete found files;

How to restore encrypted files

You can try to restore your files with special tools. You may find more detailed info on data recovery software in this article – recovery software. These programs may help you to restore files that were infected and encrypted by ransomware.

Restore data with Stellar Data Recovery

Stellar Data Recovery is able to find and restore different types of encrypted files, including removed emails.

  1. Download and install Stellar Data Recovery
  2. Choose drives and folders with your data, then press Scan.
  3. Select all the files in a folder, then click on Restore button.
  4. Manage export location. That’s it!
Download Stellar Data Recovery

 

Aiseesoft Data Recovery

Download Aiseesoft Data Recovery Aiseesoft Data Recovery recovers deleted files (like photos, documents, emails, audio, video), and also recovers from a computer, hard drive, flash drive, memory card, digital cameras. Recover from accidental deletion, formatted partition, hard drive problem, RAW hard drive, computer crash

We hope this guide was helpful to you. Feel free to leave a comment and tell us what recovery software was (or wasn’t) effective in your case.

How to prevent ransomware infection?

It is always rewarding to prevent ransomware infection because of the consequences it may bring. There are a lot of difficulties in resolving issues with encoders viruses, that’s why it is very vital to keep a proper and reliable anti-ransomware software on your computer. In case you don’t have any, here you may find some of the best offers in order to protect your PC from disastrous viruses.

Malwarebytes

I want to remove it

SpyHunter is a reliable antimalware removal tool application, that is able to protect your PC and prevent the infection from the start. The program is designed to be user-friendly and multi-functional.

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