Efji Virus Removal Guide (+Decrypt .efji files)

Efji – General Info

Efji is a destructive software application working as common ransomware. Michael Gillespie, the widely known virus researcher, very first found this new name in the DJVU ransomware family.

Efji was created for the sole function to encrypt all popular file types. Logically, as soon as the file encryption is successfully achieved, the users are not able to get access to them. Efji ransomware adds its own “.efji” to all the encrypted files. For example, the file “price_list.xls”, as soon as crypted by Efji, will be entitled as “price_list.xls.efji”. As soon as the encryption is accomplished, Efji puts its own distinct text file (_readme.txt) into all the folders that keep the encrypted files.

The alert stated by document requesting the random os extremely comparable to the notifications given by other ransomware dangers belonging to the DJVU family. The warning essentially indicates that the information has been encrypted and the only service to get access to it is to use an unique standalone key. Regretfully, this declaration is definitely real.

The method to encrypt the files utilized by Efji is not totally investigated. Nevertheless, there is no doubt that each computer system owner may be released a special decryption key, which is definitely unique. It is exceptionally tough to recover the information without the proper key in location.

“Don’t worry, you can return all your files!”, from text file message:

One more peculiarity of the Efji infection is that the users are unable to get access to the key. The decrypting key is hosted on a special server under the complete control by the criminals who have actually released the Efji ransomware into the world wide web. In order to get the key and restore the essential information, the users are informed to connect with the scams through email or by telegram and to pay the ransom in the quantity of $980.

The message likewise states that individuals ought to call the Efji authors within 72 hours upon the moment of the information file encryption. The alert indicates that by doing so the people will acquire a 50% discount, therefore, the ransom amount drops down to $490.

No matter what the amount of the ransom is, we strongly advise that you do not pay the ransom. There is no guarantee that these online scoundrels will keep their promises, so they may not care at all what the victims feel about the encryption, even when the quantity of the ransom is gotten into their accounts. Hence, paying ransom typically does not lead to an effective recovery. So, the users might merely lose their money for nothing.

Similarly, we urge you not to contact the scams as they instruct. Do not move cash into their wallets. There are no applications that might split the Efji ransomware or restore the information for free. For that reason, the only correct decision is to bring back the information from possible backups (if available).

Virus Summary

Name Efji Ransomware
File Extension efji
Type Ransomware
Family DJVU
Short Description The ransomware encrypts all the data stored on your system and requires a ransom to be paid on your part supposedly to recover your important files.
Symptoms File encryption by the ransomware is performed by means of the AES-256 algorithm (CFB mode) encryption algorithm. Once the encryption is completed, the ransomware adds its special .efji extension to all the files modified by it.
Distribution Method Adware bundles and software cracks
Similar Infections Mmpa, Foqe, Moss
Efji Removal Tool   GridinSoft Anti-Malware
Efji Decryption Tool   Emsisoft Djvu Decryptor

Do not forget that the Web is now loaded with infections comparable to the Efji virus. For example, this particular risk is basically identical to Brusaf and other ransomware-type infections. These destructive energies have been established in order to encrypt the essential information and express the need for the users to pay the ransom. All these infections utilize the identical algorithm to produce the specific key for successful information decryption.

Unless the Efji ransomware is still under the advancement process or has got some concealed bugs, it is not possible to bring back the information by hand. Hence, the only working service to avoid the loss of your important information is to routinely maintain up-to-date backups of all your essential documents.

Another essential piece of recommendations is to store the backups on special storage not connected to your primary device. For example, you might store it on the USB Flash Drive, or some external disk drive, or by using the cloud data storage services. Keeping the backups on your routine drive is extremely dangerous, given that the backup may likewise be secured by the Efji virus.

Leakages for the Efji ransomware attack.

Efji uses many paths to penetrate the susceptible computer systems. It is not certain what particular method was used in your case, however, the invasion may take place via the following channels:

  • bundling with third-party programs, mainly free software;
  • spam emails from the unknown senders;
  • websites offering free hosting;
  • P2P (peer-to-peer) torrent downloads.

There are times when the Efji ransomware may disguise itself as some genuine application, for example, through the misleading alerts requiring setup of some software upgrade. This is the most common technique used by the frauds to inject the Efji ransomware files into the system. By doing this users partly take part in its installation, without plainly understanding the risk.

In addition, the scams may send out unsolicited spam e-mail with tricky notifies encouraging the people to open suspicious accessories or click some download links, for example, those motivating the people to open particular photos, text files, tax files and other information.

No doubt, opening these files or clicking on the malicious links might basically damage the system. Fake Adobe Flash Player upgrade notifications may result in the Efji ransomware infiltration. Likewise, downloading the broken software might additionally consist of the ransomware installer. The last however not the least, installation of Efji might take place through some Trojan horses that might be set up stealthily into the system and without the user’s direct authorization and even consent.

Preventing the Efji ransomware injection.

Naturally, there is no absolute guarantee that your computer system will be always without any malware attacks, nevertheless, we would like to share some helpful ideas with you to make it much safer. Make sure to pay extremely attention while browsing the web and particularly while downloading cost-free programs. Do not open any suspicious email accessories, specifically if the sender is not understood to you.

Do not forget that certain freeware installer might likewise include some other additional apps in the package. These extra applications may be really harmful. It is of utmost significance to keep your anti-virus software and your operating system in general to be constantly appropriately upgraded.

It is quite sensible that downloading cracked software is unlawful, nevertheless, additionally, such unauthorized programs usage might likewise bring serious damage to your system. Thus, do not download any split programs. Plus, the fact that your existing anti-virus did not secure the system from the Efji ransomware is a great reason for you to reconsider your choices and change to another program that can render the protecting functions on a better level.

Below please find the quotation from the Efji text file:

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:
 https://we.tl/t-2P5WrE5b9f
 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:
 restorealldata@firemail.cc
  
 Reserve e-mail address to contact us:
 gorentos@bitmessage.ch 

 Our Telegram account:
 @datarestore

Screenshot of files with “.efji” extension added by the ransomware:”

Use GridinSoft Anti-Malware to remove Efji ransomware from your computer

1.Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

  GridinSoft Anti-Malware

2. Double-click on the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-ag.exe file to install GridinSoft Anti-Malware on your computer.

An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.

3. Press Install button for run GridinSoft Anti-Malware.

3.Once installed, GridinSoft Anti-Malware will automatically run.

4. Wait for the GridinSoft Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your computer for Win Speedup 2018 and other malicious programs. This process can take a 20-30 minutes, so we suggest you periodically check on the status of the scan process.

5. Click on “Clean Now”.

When the scan has completed, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.

Use Emsisoft Decryptor for restore efji files

You can download Emsisoft Decryptor by clicking the button below:

  Emsisoft Decryptor

  1. Run the decryptor as an administrator. The license terms will show up, which you have to agree to by clicking the “Yes” button.
  2. Once the license terms are accepted, the primary decryptor user interface opens.
  3. By default, the decryptor will pre-populate the locations to decrypt with the currently connected drives and network drives. Additional locations can be added using the Add” button.
  4. Decryptors typically offer various options depending on the particular malware family. The available options are located in the Options tab and can be enabled or disabled there. You can find a detailed list of the available Options below.
  5. After you have added all the locations you want to decrypt to the list, click the “Decrypt” button to start the decryption process. The screen will switch to a status view, informing you about the current process and decryption status of your files
  6. The decryptor will inform you once the decryption process is finished. If you require the report for your personal records, you can save it by clicking the “Save log” button. You can also copy it straight to your clipboard to paste it into emails or forum posts if you are asked to.
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Daniel Zimmermann

Daniel Zimmermann has been writing on security and malware subjects for many years and has been working in the security industry for over 10 years. Daniel was educated at the Saarland University in Saarbrücken, Germany and currently lives in New York.

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