How to remove Efji ransomware and decrypt .efji files

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What is Efji ransomware?

Efji ransomware is a data-kidnapping malware that encodes data on infected computer. Efji ransomware belongs to the large DJVU ransomware family that creates numerous similar viruses almost every week. To complicate the decryption procedure, it also deletes Shadow Volume Copies of encrypted data. Cybercriminals, realizing that encrypted data can be valuable to the user, begin to blackmail them. Although the Efji ransomware is a really dangerous virus, we do not advise you to comply with the requirements of criminals as there is a high risk of getting scammed by Efji ransomware developers. As practice shows, cybercriminals usually just disappear after they had been paid. Instead, we suggest that you read our instructions to remove Efji ransomware and decrypt .efji files, we recommend you use this guide.

remove Efji ransomware

This diversity notwithstanding, they all follow the same basic pattern – to extort money in exchange for valuable data. Immediately after penetration, it starts to encrypt user files appending them with .efji extension. When the encryption is finished and the data on your computer is encoded, the ransomware will drop text file with a ransom note – _readme.txt. The amount of ransom is $980, but to speed up this process while the victim is confused and frightened, they give a 50% discount for payment within 72 hours. For this purpose, cybercriminals want you to contact them by email: helpmanager@mail.ch / restoremanager@airmail.cc. The more detailed information you can find in the TXT file virus creates:_readme.txt:


ATTENTION!

Don’t worry, you can return all your files!
All your files like photos, databases, documents and other important are encrypted with strongest encryption and unique key.
The only method of recovering files is to purchase decrypt tool and unique key for you.
This software will decrypt all your encrypted files.
What guarantees you have?
You can send one of your encrypted file from your PC and we decrypt it for free.
But we can decrypt only 1 file for free. File must not contain valuable information.
You can get and look video overview decrypt tool:
hxxps://we.tl/t-UfvM0gtUDw
Price of private key and decrypt software is $980.
Discount 50% available if you contact us first 72 hours, that’s price for you is $490.
Please note that you’ll never restore your data without payment.
Check your e-mail “Spam” or “Junk” folder if you don’t get answer more than 6 hours.

To get this software you need write on our e-mail:
helpmanager@mail.ch

Reserve e-mail address to contact us:
restoremanager@airmail.cc

Your personal ID:
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX


In the end, it’s up to you to believe it or not, but let us warn you – no one can ensure that they would do their part of the deal. On the contrary, there is a high risk of being deceived and simply left with nothing. Of course, they claim the opposite, that it is supposedly not in their interests to trick you. Think for yourself, why should they send you the key, if they have already received a ransom from you? The only reliable way to solve the problem is to remove Efji ransomware from the system using appropriate software in order to stop the malicious actions of the virus and then restore your data from the backup.

Screenshot of encrypted files:

remove Efji ransomware

At the last stage of the infection stage, this ransomware may delete all shadow volumes on your computer. After that, you will not be able to carry out the standard procedure for recovering your encrypted data using these shadow volumes. There are two solutions to remove Efji Ransomware and decrypt your files. The first is to use an automated removal tool. This method is suitable even for inexperienced users since the removal tool can delete all instances of the virus in just a few clicks. The second is to use the Manual Removal Guide. This is a more complicated way that requires special computer skills.

Screenshot of fake Windows Update you might see during the encryption:

remove Efji ransomware


How Efji ransomware gets on my computer?

Cybercriminals use various techniques to deliver the virus to the target computer. Ransomware viruses can infiltrate victims’ computers more than in one or two ways, in most cases, cryptoviral extortion attack is carried out with the help of the following methods:


Brief overview:
NameEfji
Type of threatRansomware, cryptovirus, file-locking virus
File Extension.efji
Ransom Note_readme.txt
Amount of Ransom$980 ($490 – 50% discount for payment within 72 hours)
Contacthelpmanager@mail.ch, restoremanager@airmail.cc
GenealogyDJVU Ransomware
DetectionsESET-NOD32 Win32/Filecoder.STOP.A,
BitDefender Trojan.GenericKD.43898764,
McAfee Packed-GCU!CD876A27DAFE, more detections VirusTotal
DistributionSpam email attachments, RDP, pirated software, torrent websites, phishing sites
Removal Tool

In order to completely remove ransomware from your computer, you will need to install an antivirus software. We recommend using Norton Antivirus

Recovery Tool

The only effectvie method to restore files is to copy them from a saved backup. If you don’t have a suitable backup, you may use third-party recover software such as Stellar Data Recovery


How to remove Efji ransomware?

Recommended Solution:

Try Norton

Norton is a powerful removal tool. It can detect and remove all instances of newest viruses, pop-ups, ransomware or trojans.

Download Norton

for windows

You may find more detailed information about antivirus products in our article – Top 5 Antivirus Software for Windows


Once Efji ransomware has been successfully removed, you can begin the file decryption procedure.

How to decrypt files infected by Efji Ransomware?

Emsisoft's decryption tool

It was noted that during encryption, the Efji virus tries to establish a connection with its server, which does not always occur. If you’re lucky, and the virus fails to do it, you’ve got a good chance of getting your files back with the help of Emsisoft’s decryption tool.


Method 1. Restore your files with the help of Recovery Tool

Stellar Data RecoveryIn case your PC has been attacked by ransomware, you may restore your files by using file recovery software. Stellar Data Recovery is one of the most effective tools that can recover lost and corrupted files — documents, emails, pictures, videos, audio files, and more — on any Windows device. The powerful scan engine can detect compromised files and finally save them to specified destination. Despite its advancedness, it’s very concise and simple so that even the most inexperienced user can figure it out.

Download Stellar Data Recovery
  1. Run Stellar Data Recovery.
  2. Select type of files you want to restore and click Next.
  3. Stellar Data Recovery

  4. Select the drive and folder where your files are located and date that you want to restore them from and press Scan.
  5. Stellar Data Recovery

  6. Once the scanning process is done, click Recover to restore your files.
  7. Stellar Data Recovery

  8. After this, select a destination and click Start Saving to save restored data.
  9. Stellar Data Recovery

Since new ransomware-type viruses appear almost every day, there is no technical possibility to issue a decryptor for each virus. In this case, the recovery tool comes to the rescue. Despite the fact that this is one of the most effective methods in the absence of a decryptor, this is not 100 percent and not the only way.


Method 2. Restore the system using System Restore

Although the latest versions of Efji Ransomware can remove system restore files, this method may help you to partially restore your files. Give it a try and use standard System Restore to revive your data. The entire process is preferably carried out in Safe Mode with Command Prompt:

For Windows XP/Vista/7 users:

Restart your computer and before your system starts – hit F8 several times. This will prevent system from loading and will show Advanced boot options screen. Choose Safe mode with Command Prompt option from the options list using up and down arrows on your keyboard and hit Enter.

safe mode with networking

For Windows 8/10 users:

  1. Click the Start button, then select Settings
  2. Click Update & Security, then select Recovery and click Restart now.
  3. After your device reboots, go to Troubleshoot > Advanced options >Startup Settings > Restart
  4. safe mode with Command Prompt

  5. After your PC restarts, you should press F5 key to Enable Safe Mode with Command Prompt.

After the system is loaded in Safe Mode with Command Prompt, do following:

  1. In the Command Prompt window, type cd restore and hit Enter.
  2. system restore

  3. Then type rstrui.exe and hit Enter again.
  4. system restore

  5. Once a new window shows up, click Next.
  6. system restore

  7. Choose the date before the infection appearance and click Next again
  8. system restore

  9. In the opened pop-up window, click Yes to start system restore.
  10. system restore


Method 4. Roll the files back to the previous version

Previous versions can be copies of files and folders created by Windows Backup (if it is active) or copies of files and folders created by System Restore. You can use this feature to restore files and folders that you accidentally modified or deleted, or that were damaged. This feature is available in Windows 7 and later versions.

windows previous versions

  1. Click the ecrypted file and choose Properties
  2. Open the Previous Version tab
  3. Select the latest version and click Copy
  4. Click Restore

How to prevent your system from Ransomware?

No one is safe from infection with a virus that secretly encrypts your data. But in order to minimize this risk, you need to follow the rules:

1. Always make Windows updates on time and keep them up to date. Remember that these updates close the security holes of the system through which the virus can enter your computer.

2. The most efficient way to avoid data loss is of course to make a backup of all important data from your computer. It is enough just to synchronize the necessary folders with one of the cloud services, so as not to be afraid to see the text requiring the payment of bitcoins in exchange for a decryption key. It can be a cloud or a remote hard drive on the network. If you store all your files on the Internet, the likelihood of virus infection will be lower. Do not make copies to external hard drives, as this could damage them.

3. Since spam email is the most popular form of spreading ransomware-type viruses, the user should never open email attachments without first having scanned them with antivirus. Just clicking on the link or opening the attachment can damage the operating system (Windows) in a few minutes, damage important data and infect other machines with the virus.

4. All previous methods do not matter if you do not have a reliable antivirus. The presence of anti-virus protection on your computer can prevent all these unpleasant surprises. Anti-virus software will protect you from malware, money loss, time loss, invasion of your personal life. Now the antivirus market is so huge that it is difficult to make a choice in favor of one of them. If you have not decided who to give preference to, we suggest you familiarize with our Top 5 Antivirus Software for Windows

Author: Ilias

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