.Efji Virus


.Efji is a malware program that can block the access to your personal files in a matter of minutes using a military-grade encryption algorithm. Once .Efji puts its encryption on your data, it will show you a ransom-demanding message for the recovery of your data.

.Efji Virus

Once the .Efji virus has encrypted your files it will leave a _readme.txt file

This type of malware has been around for about two decades but in the last five or six years, it has undergone a serious evolution, becoming one of the most dreaded computer threats that one could get their system infected with. Viruses like .Efji, .Foqe and .Mmpa are called Ransomware because their main goal is to get their victims to send some of their money to the hackers controlling the virus. There are different types of Ransomware that blackmail their victims in different ways but the most widespread Ransomware sub-type is the one that targets the files, locking them with an advanced encryption algorithm and then telling the user that a ransom must be paid in exchange for the private decryption key – supposedly the only thing that can return the locked files to their regular accessible state.

Depending on what data you keep stored on your computer and whether you have any external backups, the attack from this otherwise devastating threat may not be all that serious. For instance, if the files that the malware has encrypted are not all that important to you or if you have safe and secure copies of them stored somewhere on an external device, then there is little that the virus can do to force you to pay the ransom and the hackers won’t have any leverage they can use to blackmail you. However, sadly, in most cases, the attacked users do indeed have sensitive and important data on their computers that they cannot afford to lose and that hasn’t been backed up. In those cases, there are several different things you can do and it is very important to not act out of panic and instead assess the situation and pick the best course of action for your case.

The .Efji virus

The .Efji virus is an advanced Ransomware threat with file-locking abilities that will keep your data unavailable until you pay a ransom to its creators. The .Efji virus will give you detailed instructions on how to perform the ransom payment once it completes the encryption.

Following those instructions and paying the ransom, however, is the last thing we’d advise you to do. The reason is that you stand to lose lots of money without any guarantee that the decryption key would be sent to you. That is why it is better to first explore the other options that may help you recover your data.

The .Efji file encryption

The .Efji file encryption is the advanced file-locking algorithm that this virus uses to block all access to your files. The .Efji file encryption can be unlocked if you have the private decryption key but there may also be certain ways to bypass it altogether.

.Efji Virus

The .Efji virus will encrypt all of your files rendering them unusable.

We will show you some possible alternatives that may help you do that in the next guide but it is important to first go through the removal steps in order to get rid of the virus, thus preventing it from locking once again any of the data you may manage to recover.


Name .Efji
Type Ransomware
Danger Level High (Ransomware is by far the worst threat you can encounter)
Symptoms The ongoing encryption process may cause system slow-downs and temporarily decrease the free storage space you have on the computer but, other than that, there are hardly any symptoms during the initial (encryption) phase of a Ransomware attack.
Distribution Method Misleading spam messages, clickbait pop-ups and banners, obscure and illegal software downloads, etc.
Data Recovery Tool Not Available
Detection Tool

 .Efji Ransomware Removal

.Efji Virus

Some of the steps will likely require you to exit the page. Bookmark it for later reference.

Reboot in Safe Mode (use this guide if you don’t know how to do it).

.Efji Virus


Press CTRL + SHIFT + ESC at the same time and go to the Processes Tab. Try to determine which processes are dangerous. 

.Efji Virus

Right click on each of them and select Open File Location. Then scan the files with our free online virus scanner:

Each file will be scanned with up to 64 antivirus programs to ensure maximum accuracy
This scanner is free and will always remain free for our website's users.
This file is not matched with any known malware in the database. You can either do a full real-time scan of the file or skip it to upload a new file. Doing a full scan with 64 antivirus programs can take up to 3-4 minutes per file.
.Efji Virus
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.Efji Virus
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    After you open their folder, end the processes that are infected, then delete their folders. 

    Note: If you are sure something is part of the infection – delete it, even if the scanner doesn’t flag it. No anti-virus program can detect all infections.

    .Efji Virus

    Hold the Start Key and R –  copy + paste the following and click OK:

    notepad %windir%/system32/Drivers/etc/hosts

    A new file will open. If you are hacked, there will be a bunch of other IPs connected to you at the bottom. Look at the image below:

    .Efji Virus

    If there are suspicious IPs below “Localhost” – write to us in the comments.

    Type msconfig in the search field and hit enter. A window will pop-up:

    .Efji Virus

    Go in Startup —> Uncheck entries that have “Unknown” as Manufacturer.

    • Please note that ransomware may even include a fake Manufacturer name to its process. Make sure you check out every process here is legitimate.

    .Efji Virus

    Type Regedit in the windows search field and press EnterOnce inside, press CTRL and F together and type the virus’s Name. 

    Search for the ransomware  in your registries and delete the entries. Be extremely careful –  you can damage your system if you delete entries not related to the ransomware.

    Type each of the following in the Windows Search Field:

    1. %AppData%
    2. %LocalAppData%
    3. %ProgramData%
    4. %WinDir%
    5. %Temp%

    Delete everything in Temp. The rest just check out for anything recently added. Remember to leave us a comment if you run into any trouble!

    .Efji Virus 

    How to Decrypt .Efji files

    We have a comprehensive (and daily updated) guide on how to decrypt your files. Check it out here.

    If the guide doesn’t help, download the anti-virus program we recommended or try our free online virus scanner. Also, you can always ask us in the comments for help!


    About the author


    Brandon Skies

    Brandon is a researcher and content creator in the fields of cyber-security and virtual privacy. Years of experience enable him to provide readers with important information and adequate solutions for the latest software and malware problems.

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