.aira Files Virus – How to Remove it and Restore Your Files

.aira Files Virus – How to Remove it and Restore Your Files

This article has been created in order to help you by showing you how to remove the .aira files virus from your computer and how to restore files encrypted by it.

The .aira files virus is the type of ransomware infection which aims to encrypt the files on the infected computer, setting a custom file extension to them. The malware, whose primary purpose is to encrypt the files on your computer and drop a ransom note, named How to decrypt your files.txt, also aims to get you to pay a hefty ransom in BitCoin in order to get the files decrypted once again. Many do believed that the .aira files virus is part of the AiraCrop ransomware, which came out in 2016.

Threat Summary

TypeRansomware, Cryptovirus
Short Description Aims to encrypt the files on your computer and extort you into paying a hefty ransom fee in order to decrypt them.
SymptomsThe ransomware aims to set the .aira file extension to the encrypted files and drops a ransom note, called How to decrypt your files.txt
Distribution MethodSpam Emails, Email Attachments, Executable files
Detection Tool See If Your System Has Been Affected by .aira


Malware Removal Tool

User ExperienceJoin Our Forum to Discuss .aira.
Data Recovery ToolWindows Data Recovery by Stellar Phoenix Notice! This product scans your drive sectors to recover lost files and it may not recover 100% of the encrypted files, but only few of them, depending on the situation and whether or not you have reformatted your drive.

.aira Files Virus – How Does It Infect

The primary methods of infection, used by the .aira ransomware aim to get victims to download the malicious file, thinking it’s legitimate. One of those methods is if the cyber-criminals send the malicious file to the victim via e-mail, making it seem as if it was a legitimate type of a file. The e-mails often aim to resemble legitimate types of messages, whose primary purpose is to trick victims into downloading the malicious file as it may resemble:

  • Invoice.
  • Receipt.
  • Other form of seemingly legitimate document.

In addition to this, the malicious files, related to .aira ransomware may also come to your computer by being uploaded on software providing sites, pretending to be:

  • Setups of software.
  • Cracks.
  • Patches.
  • Software license activators.
  • Drivers.
  • Key generators.

.aira Ransomware – Further Information

As soon as .aira ransomware virus is installed on your computer, the malware may begin to drop it’s payload files on the compromised computer. The .aira ransomware may drop files in the following Windows folders:

  • %AppData%
  • %Local%
  • %Temp%
  • %Roaming%
  • %LocalLow%

Once the ransomware has dropped it’s malicious files on the victim’s PC, the virus may begin to create mutexes, copy itself on multiple places and then it may also create various different types of programs on the user’s computer. The malware may also modify the Windows Registry Editor by adding registry entries with values in the following Windows Registry sub-keys:

→ HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run

Once this ransomware infection has been set to run automatically when you boot Windows, it may also drop it’s ransom note file. The ransom note file is named How to decrypt your files.txt:

“Encrypted Files!
All your files are encrypted. Using encryption AES256-bit and RSA-2048-bit.
Making it impossible to recover the files without the correct private key.
If you are interested in getting is key, and retrieve your files
visit one of the link and enter your key;
{tor URLS}
Alternative link:
{tor URLS}
To access the alternate link is mandatory to use the TOR browser available on the link

.aira Files Virus – Encryption Process

In order to encrypt the files on the computer, the .aira files virus, being a new AiraCrop ransomware variant may take part in an encryption mode, involving AES and RSA encryption algorithm. This may result in the ransomware virus being able to encrypt the files on your computer using one of the algorithm and encrypt the decryption key using the other, making the file decryption even more complex. To encrypt the encrypted files on your computer, the .aira files virus aims to perform various different types of activities including replacing key data from the original file with data from the encrypted files, resulting in the ransomware making the files seem corrupt. The main files, that are attacked by the .aira Files Virus are often used types of files that may have the following file extensions:


After the encryption process has completed, the ransomware virus may begin to set the .aira file extension to the files and they may look like the following afterwards:

Remove .aira Ransomware and Restore Encrypted Files

The .aira files virus is the type of ransomware infection which can be removed by following the removal instructions underneath this article. They are specifically created in order to help you to get rid of this ransomware either manually or automatically. If you lack the experience in performing ransomware removal manually, security experts always advise to download an advanced anti-malware software. It can help you to automatically remove the .aira files virus from your computer and protect it against any infections in the future too.

Furthermore, if you want to restore files, that have been encrypted by this ransomware, we advise you to try the alternative methods for file recovery underneath this article in step “2. Restore files encrypted by .aira files virus”. They are created so that they can help you to restore as many files, encrypted by the virus as possible.

Ventsislav Krastev

Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.

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