Remove Fezmm Virus (.fezmm Files Ransomware)

Fezmm – Ransomware

The Fezmm stands for a ransomware-type infection. Fezmm was elaborated specifically to encrypt all major file types. When the file is encrypted people are not able to use them. Fezmm adds the “.fezmm” extension for each file encrypted by it. For example, the file “myphoto.jpg“, when encrypted by Fezmm, will be renamed into “myphoto.jpg.fezmm“. As quickly as the encryption is completed, Fezmm places a special text file into every folder containing the encrypted data.

The message given by Fezmm text file requesting for the ransom is definitely the same as the statements given by other ransomware representatives. It literally points out that the information is encrypted and that the only way to restore it is to use a a distinct decryption key. Unfortunately, this is absolutely true. The type of cryptography mechanism applied by Fezmm is still not appropriately examined. Still, it is definitely particular that each victim may be given the specific decryption key, which is absolutely distinct. It is difficult to restore the files without the key available.

Another trick of Fezmm is that the victims cannot gain access to the key. The key is kept on a particular server run by the frauds associated with Fezmm ransomware. To get the key and recover the important information people have to pay the ransom.

Nonetheless, irrespective of the asked for amount, people should keep away from paying the virus. Cyber frauds are unfair, so they tend to totally ignore what their victims feel about the issue, even when the payment reaches their pockets. This is why paying the ransom generally does not provide any positive result and people just waste their money for nothing.

We highly advise that you do not contact these crooks and certainly do not transfer money into their accounts. It is said to admit that there are no utilities able to crack Fezmm ransomware and to recover the data data totally free. Hence, the only best decision is to recover the lost data from the available backup.

Virus Summary

Name Fezmm Ransomware
File Extension .fezmm
Type Ransomware
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 and RSA encryption algorithms. Once the encryption is completed, the ransomware adds its special fezmm extension to all the files modified by it.
Distribution Method Spam Emails, Email Attachments
Removal Tool   GridinSoft Anti-Malware

Keep in mind that the internet is now overwhelmed with threats that look comparable to Fezmm ransomware. Harmful programs of such kind are usually elaborated to encrypt important information and to set forth the demand prior to the user to pay the ransom. The peculiarity of all such ransomware threats is that all apply a comparable algorithm to generate the unique decryption key for files decryption.

Hence, as long as the ransomware is still being developed or has some hidden bugs, by hand recovering the information is merely not feasible. The only way to avoid the loss of your crucial information is to regularly create backups of your important information.

Bear in mind that even if you create such backups, they need to be put into a special storage utility not connect to your main PC. You may use the USB Memory Stick or external hard drive for this purpose, or refer to the help of the cloud storage. If you keep your backup files on your common system they may be encrypted in addition to other files, so it’s definitely not a good storage location.

How did ransomware infect my system?

There are numerous ways used by online frauds to distribute Fezmm ransomware. Even though it is uncertain how exactly Fezmm injects your system, there are some leaks through which it may infiltrate the system:

  • integration with third-party software, especially freeware;
  • spam emails from unidentified senders;
  • websites rendering free hosting services;
  • pirated peer-to-peer (P2P) downloads.

Often Fezmm ransomware may exist as some genuine software, for example, in the pop-ups instructing users to implement some crucial software application updates. This is the common technique used by online scams to persuade people into downloading and installing Fezmm infection manually, by means of their direct participation in the installation process.

Furthermore, the criminals might describe various email spam methods to inject destructive codes into Windows PC. So, they may refer to to sending unsolicited spam emails with tricky notices promoting users to download the attachments or click on certain download links, for example, the ones motivating users to open some video, documents, tax reports or invoices.

Needless to mention, opening such files or clicking on such dangerous links may severely damage the PC. Fictitious Adobe Flash Player update notifies may result in Fezmm virus injection. As for the cracked applications, these illegally downloaded programs may also contain destructive codes resulting in Fezmm secret installation. Finally, injection of Fezmm may take place by ways of Trojans that privately get injected into the system and install destructive utilities without the user’s consent.

Is there any way to avoid the injection of Fezmm ransomware?

Although there is no 100% guarantee to avoid your system from getting infected, there are some pieces of recommendations we want to show with you. Firstly, be really mindful when you browse the web and specifically while downloading free apps. Keep away from opening suspicious email attachments, especially when the sender of the email is not familiar to you.

Keep in mind that some freeware installers may consist of other unwanted utilities in the bundle, so they may be destructive. Make certain that your current anti-virus and your entire OS is always appropriately updated.

Naturally, downloading pirated software is prohibited and may result in vital damage to be made for your system. Hence, stay away from downloading cracked software. You are also strongly recommended to reconsider your existing security software and potentially switch to another security solution that can render much better services of defending your Windows.

Below please find the quotation from the Fezmm text file:

Your files are encrypted How to decrypt your files?
You need to buy a decryptor. Decryptor - is a software which we create for each client separately, it contains unique private key to recover client\'s files.
This is a business for us and we work honestly. If we do not do our work and liabilities - no one will cooperate with us.

Current price: $400 ≈ 0.03541582 BTC
Next price:      $800 ≈ 0.07083164 BTC
How to buy decryptor?
Send us an email to:  or 
In subject line of your message write your personal ID: 
Create a Bitcoin Wallet (we recommend blockchain.com)
Buy the necessary amount of Bitcoins. Current amount for buying is  BTC
Send amount to the address that you receive when write to us
Download decryptor from the email message
* We guarantee that you can decrypt all your files quickly and safely.

Why should I pay?
Why should I pay if there are free decryptors in the internet? So, we have an answer. There are some programs which storage private key on the client machine and it gives a chance for antivirus companies to find it and recover files. We don\'t work in this way. Private key storage on our servers and have never been on your machine.
Maybe in-build functionality of Windows \"shadow copies\" can help you? They could, but we deleted them all.
What about file restore programs? We have cared about it also. There is a cipher utility which populate each sector of your HDD with zero, then with one and then again with zero. It kills chances to restore files from HDD sectors.
What if hack encryption algorithm? We use (AES256 with RSA-2048) algorithm it makes not possible decryption without private key (even NSA can\'t hack it).
It means there is no chance to restore your files without our software. If you try, you can lose your files and we will not be able to help you.

What guarantees?
To verify the possibility of the recovery of your files we can decrypt one image file for free.
You can send it by email, the size of image should be less then 5mb.

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

Use GridinSoft Anti-Malware to remove Fezmm 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.

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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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