Remove Dex Virus (.[decryptex@airmail.cc].dex Files Ransomware) – Dharma Ransomware

Dex – General Info

The Dex mean a ransomware-type infection. The infection comes from the Dharma ransomware family. Dex was elaborated specifically to encrypt all major file types. As soon as the file is encrypted people are not able to use them. Dex adds the “.[decryptex@airmail.cc].dex” extension for each file encrypted by it. For example, the file “myphoto.jpg“, once encrypted by Dex, will be renamed into “myphoto.jpg.[decryptex@airmail.cc].dex“. As quickly as the encryption is finished, Dex places a special text file into every folder containing the encrypted data.

The message given by Dex text file requesting the ransom is definitely the same as the statements given by other ransomware representatives coming from the Dharma type. It actually points out that the information is encrypted and that the only way to bring back it is to use a a distinct decryption key. Sadly, this is absolutely true. The kind of cryptography mechanism applied by Dex is still not correctly examined. Still, it is absolutely particular that each victim might be given the specific decryption key, which is totally unique. It is difficult to restore the files without the key available.

Another trick of Dex is that the victims cannot gain access to the key. The key is kept on a specific server run by the frauds related to Dex ransomware. To get the key and recover the important info people need to pay the ransom.

Nonetheless, irrespective of the requested amount, people should stay away from paying the virus. Cyber frauds are unfair, so they tend to entirely ignore what their victims feel about the problem, even when the payment reaches their pockets. This is why paying the ransom normally does not give any positive outcome and people simply lose their money for nothing.

We strongly recommend 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 Dex ransomware and to recover the information data for free. Hence, the only best decision is to recover the lost information from the available backup.

Virus Summary

Name Dex Ransomware
File Extension .[decryptex@airmail.cc].dex
Type Ransomware
Family Dharma
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 [decryptex@airmail.cc].dex extension to all the files modified by it.
Distribution Method Spam Emails, Email Attachments
Similar Infections Youf, Zimba, Must
Removal Tool   GridinSoft Anti-Malware

Keep in mind that the world wide web is now overwhelmed with threats that look similar to Dex ransomware. It is similar Youf and many other ransomware-type threats. Harmful programs of such kind are typically elaborated to encrypt essential data and to state the demand prior to the user to pay the ransom. The peculiarity of all such ransomware threats is that all apply a similar algorithm to create the distinct decryption key for files decryption.

Therefore, as long as the ransomware is still being developed or has some hidden bugs, manually recovering the information is just not feasible. The only way to prevent the loss of your crucial information is to routinely create backups of your important information.

Remember that even if you create such backups, they should be placed into a special storage utility not connect to your main PC. You may use the Memory Stick or external hard disk for this purpose, or refer to the help of the cloud storage. If you save your backup files on your common system they may be encrypted in addition to other files, so it’s absolutely not a good storage place.

How did ransomware infect my system?

There are a number of ways used by online scams to distribute Dex virus. Although it is uncertain how precisely Dex injects your computer, there are some leaks through which it may penetrate the system:

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

Often Dex virus may be presented as some genuine software application, for example, in the pop-ups instructing users to execute some essential software updates. This is the common technique used by online frauds to persuade people into downloading and installing Dex infection manually, by means of their direct participation in the installation process.

Additionally, the criminals may describe numerous email spam tactics to inject destructive codes into systems. So, they may refer to to sending unsolicited spam e-mails with tricky notices promoting users to download the attachments or click on certain download links, for example, the ones encouraging users to open some photos, documents, tax reports or invoices.

Needless to mention, opening such files or clicking on such dangerous links may seriously damage the PC. Fictitious Adobe Flash Player update alerts may result in Dex virus injection. As for the cracked applications, these illegally downloaded programs may also include destructive codes causing Dex secret installation. Lastly, injection of Dex may occur by ways of Trojans that secretly get injected into the system and install harmful utilities without the user’s approval.

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

Although there is no 100% guarantee to prevent your PC from getting infected, there are some pieces of advice we want to show with you. To start with, be really mindful when you browse the web and specifically while downloading free programs. 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 malicious. Make sure that your current antivirus software and your entire OS is always appropriately updated.

Obviously, downloading pirated software is illegal and may lead to important damage to be produced your PC. Hence, stay away from downloading cracked software. You are likewise strongly encouraged to reconsider your existing security software and possibly switch to another security solution that can render far better services of protecting your computer.

Below please find the quotation from the Dex text file:

Pop-up window:

YOUR FILES ARE ENCRYPTED
Don\'t worry,you can return all your files!
If you want to restore them, follow this link:email decryptex@airmail.cc YOUR ID -
If you have not been answered via the link within 12 hours, write to us by e-mail:dex.dex.tuta.io
Attention!
Do not rename encrypted files.
Do not try to decrypt your data using third party software, it may cause permanent data loss.
Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.
====================================

FILES ENCRYPTED.txt:

all your data has been locked us
You want to return?
write email decryptex@airmail.cc or dex.dex.tuta.io

Screenshot of files with “.[decryptex@airmail.cc].dex” extension added by the ransomware:

Use GridinSoft Anti-Malware to remove Dex 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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