RansomwareRemoval Guide

Remove Avaddon Virus (+Decrypt .avdn files)

Avaddon – Ransomware

The Avaddon mean a ransomware-type infection. Avaddon was elaborated specifically to encrypt all major file types. As soon as the file is encrypted people are unable to use them. Avaddon adds the “.avdn” extension for each file encrypted by it. For example, the file “myphoto.jpg“, once encrypted by Avaddon, will be renamed into “myphoto.jpg.avdn“. As quickly as the encryption is finished, Avaddon places a special text file into every folder containing the encrypted data.

The message given by Avaddon text file requesting for the ransom is absolutely the same as the statements given by other ransomware virus representatives. It actually points out that the info is encrypted and that the only way to bring back it is to use a special decryption key. Regretfully, this is absolutely true. The type of cryptography mechanism applied by Avaddon is still not properly examined. Still, it is definitely particular that each victim may be given the specific decryption key, which is totally unique. It is difficult to bring back the files without the key available.

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

Nonetheless, irrespective of the requested quantity, people should keep away from paying the ransom. Cyber frauds are not fair, so they tend to totally disregard what their victims feel about the problem, even when the payment reaches their pockets. This is why paying the ransom generally does not give any positive result and people just waste their money for absolutely nothing.

We highly encourage that you do not contact these crooks and definitely do not transfer money into their accounts. It is said to admit that there is no utilities able to crack Avaddon ransomware and to recover the data free of charge. Hence, the just best decision is to recover the lost information from the available backup.

Virus Summary

NameAvaddon Ransomware
File Extension.avdn
TypeRansomware
Short DescriptionThe 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.
SymptomsFile 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 avdn extension to all the files modified by it.
Distribution MethodSpam Emails, Email Attachments
Removal Tool   GridinSoft Anti-Malware

Bear in mind that the web is now overwhelmed with threats that look comparable to Avaddon ransomware. Malicious programs of such kind are normally elaborated to encrypt crucial information and to set forth the demand before the user to pay the ransom. The peculiarity of all such ransomware threats is that all apply a similar 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, manually recovering the information is simply not feasible. The only way to avoid the loss of your essential data is to regularly create backups of your important information.

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

How did ransomware infect my PC?

There are numerous methods used by online frauds to distribute Avaddon ransomware. Despite the fact that it is uncertain how precisely Avaddon injects your computer, there are some leaks through which it may penetrate the system:

  • integration with third-party apps, especially freeware;
  • spam e-mails from unknown senders;
  • websites rendering free hosting services;
  • pirated peer-to-peer (P2P) downloads.

Frequently Avaddon ransomware might be presented as some genuine software, for instance, in the pop-ups advising users to carry out some essential software updates. This is the typical trick used by online scams to persuade people into downloading and installing Avaddon infection manually, by methods of their direct participation in the installation process.

In addition, the criminals may refer to numerous email spam strategies to inject harmful codes into the computer. So, they may refer to sending unsolicited spam emails with tricky notifications promoting users to download the attachments or click on certain download links, for example, the ones encouraging users to open some receipts, files, tax reports or invoices.

Needless to mention, opening such documents or clicking on such dangerous links may significantly damage the system. Fictitious Adobe Flash Player update notifies may result in Avaddon ransom injection. When it comes to the cracked applications, these illegally downloaded programs may also include harmful codes causing Avaddon secret installation. Lastly, injection of Avaddon may occur by means of Trojans that privately get injected into the system and set up harmful utilities without the user’s approval.

Is there any way to prevent the injection of Avaddon ransom virus?

Despite the fact that there is no 100% guarantee to avoid your PC from getting infected, there are some pieces of suggestions we wish to show with you. First of all, be really cautious when you surf the web and specifically while downloading complementary apps. Stay away from opening suspicious email attachments, especially when the sender of the email is not familiar to you.

Bear in mind that some freeware installers may consist of other unwanted utilities in the bundle, so they may be malicious. Make certain that your current anti-virus and your entire operating system is always duly updated.

Obviously, downloading pirated software is illegal and may lead to important damage to be produced by your PC. For this reason, stay away from downloading cracked software. You are also strongly encouraged to reconsider your existing security software and potentially change to another security solution that can render much better services of protecting your system.

Below please find the quotation from the Avaddon text file:

Your network has been infected by Avaddon
All your documents, photos, databases, and other important files have been encrypted and you are not able to decrypt it by yourself. But don\'t worry, we can help you to restore all your files!
The only way to restore your files is to buy our special software - Avaddon General Decryptor. Only we can give you this software and only we can restore your files!
You can get more information on our page, which is located in a Tor hidden network.
How to get to our page
Download Tor browser - hxxps://www.torproject.org/
Install Tor browser
Open link in Tor browser - avaddonbotrxmuyl.onion
Follow the instructions on this page
Your ID:
-
DO NOT TRY TO RECOVER FILES YOURSELF!
DO NOT MODIFY ENCRYPTED FILES!
OTHERWISE, YOU MAY LOSE ALL YOUR FILES FOREVER!

Screenshot of files with “.avdn” extension added by the ransomware:
Avaddon Ransomware - encrypt files with .avdn extension

Use GridinSoft Anti-Malware to remove Avaddon 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.
GridinSoft Anti-Malware
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.
GridinSoft Anti-Malware Setup

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

GridinSoft Anti-Malware Install

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

GridinSoft Anti-Malware  Start

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 20-30 minutes, so we suggest you periodically check on the status of the scan process.
GridinSoft Anti-Malware Scan

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 the right corner.
GridinSoft Anti-Malware Scan Result

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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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