What is the ZFX Ransomware?

ZFX is a type of malicious software known as ransomware, which encrypts files and modifies filenames.

It appends a string of random characters, an email address (CryptedData@tfwno.gf), and the ".ZFX" extension to the filenames. This means that a file originally named "image.jpg" will turn into "image.jpg.[2AF20FA3].[CryptedData@tfwno.gf].ZFX" after encryption. ZFX is part of the Makop ransomware family.

When ZFX infects a computer, it changes the desktop wallpaper and drops a ransom note called "+README-WARNING+.txt". This note informs victims that their files have been encrypted and payment is required to recover them. The attackers offer to decrypt two small files for free in order to assess the possibility of returning all data.

The ransom note also states that only the attackers possess the private key needed for decryption, and instructs victims to contact them via email or Tox chat ID. It warns against trying to modify encrypted files as this could lead to data loss.

It is important for users to be aware of this threat so they can take steps to protect their data from ransomware attacks.

The ZFX ransomware demands inside the ransom note

The ransom note generated by the ZFX ransomware reads as follows:

::: Hey :::

Small FAQ:

.1.
Q: What's going on?
A: Your files have been encrypted. The file structure was not affected, we did our best to prevent this from happening.

.2.
Q: How to recover files?
A: If you want to decrypt your files, you will need to pay us.

.3.
Q: What about guarantees?
A: It's just business. We are absolutely not interested in you and your transactions, except for profit. If we do not fulfill our work and obligations, no one will cooperate with us. It's not in our interest.
To check the possibility of returning files, you can send us any 2 files with SIMPLE extensions (jpg, xls, doc, etc… not databases!) and small sizes (max 1 mb), we will decrypt them and send them back to you. This is our guarantee.

.4.
Q: How to contact you?
A: You can write to us at our mailboxes: CryptedData@tfwno.gf

.5.
Q: How will the decryption process take place after payment?
A: After payment, we will send you our scanner-decoder program and detailed instructions for use. With this program you will be able to decrypt all your encrypted files.

.6.
Q: If I don't want to pay bad people like you?
A: If you do not cooperate with our service - it does not matter to us. But you will lose your time and data because only we have the private key. In practice, time is much more valuable than money.

:::BEWARE:::
DO NOT try to modify encrypted files yourself!
If you try to use third party software to recover your data or antivirus solutions - back up all encrypted files!
Any changes to the encrypted files may result in damage to the private key and, as a result, the loss of all data.

Note:
::::::IF WE HAVE NOT RESPONSE YOU BY MAIL WITHIN 24 HOURS::::::
Spare contact for communication:
If we have not answered your email within 24 hours, you can contact us via the free messenger qTox
Download from the link hxxps://tox.chat/download.html
Next go qTox 64-bit
after downloading the program, install it and go through a short registration.
Our Tox ID

How can ransomware like ZFX get in your computer?

Ransomware like ZFX can get into your computer through various means. One of the most common ways is through malicious emails or links. These emails may appear to be from legitimate sources, but they contain malicious attachments or links that can download and install ransomware on your system. Other methods include downloading software from untrustworthy websites, clicking on malicious ads, and using unsecured Wi-Fi networks. Additionally, ransomware can spread through removable media such as USB drives or external hard drives if they are not properly scanned for malware before being used. It is important to be aware of these threats and take steps to protect yourself from them by using a reliable antivirus program, avoiding suspicious emails and websites, and keeping all software up-to-date.

Can you restore your files if you remove the ZFX ransomware?

It is possible to restore your files if you remove the ZFX ransomware, however it is not guaranteed. If you have a backup of your data, you can use this to restore your files. However, if you do not have a backup or the backup does not contain all of your data, then it may be difficult to recover the encrypted files. In some cases, security experts may be able to decrypt the files using specific tools and techniques.

Additionally, some ransomware variants have been known to have flaws in their encryption algorithms which can allow victims to recover their data without paying the ransom. It is important to note that attempting any of these methods should only be done by experienced professionals as they can potentially cause further damage or lead to permanent data loss.