Remove AiraCrop Virus and Restore ._AiraCropEncrypted! Files - How to, Technology and PC Security Forum | SensorsTechForum.com
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Remove AiraCrop Virus and Restore ._AiraCropEncrypted! Files

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shutterstock_152253701Ransomware virus, called AiraCrop that has been reported to encrypt servers is the reason for several reports of users, primarily about encrypted servers. The virus uses the ._AiraCropEncrypted! file extension to encipher files and the algorithms RSA and AES are being used in combination to make data of those files inaccessible. After encryption, the virus leaves a ransom note that contains instructions on how to visit Tor-based web pages and follow further steps to pay a ransom fee and hopefully restore the encrypted files. Users infected by AiraCrop ransomware are strongly advised not to pay any ransom and read the information in this article to learn how to remove AiraCrop encrypted files.

Threat Summary

Name

AiraCrop

TypeRansomware
Short DescriptionThe malware encrypts users files using a strong encryption algorithm, making direct decryption possible only via a unique decryption key available to the cyber-criminals.
SymptomsThe user may witness ransom notes all linking to a web page and a decryptor or an e-mail address. Changed file names and the file-extension ._AiraCropEncrypted! is added to the enciphered files.
Distribution MethodVia an Exploit kit, Dll file attack, malicious JavaScript or a drive-by download of the malware itself in an obfuscated manner.
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User ExperienceJoin our forum to Discuss AiraCrop Ransomware.
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.

How Does AiraCrop Spread

To cause successful infection, AiraCrop ransomware uses several different methods that if combined ensure successful infection. These tools may be the following:

  • Spam bots to spread the virus files.
  • Malicious servers for command and control. (C2)
  • Malicious obfuscators that aim to hide the payload and infection from security software.
  • Evasive tools.
  • Exploit kits or JavaScript files.

To successfully execute this the ones who spam AirCrop ransomware may undertake massive spam campaign either by themselves by sending messages one by one or by using special e-mail spammer bot. They might also use third-party services to spread the malware for payment or percentage. The malware may be disguised as a legitimate file in a phishing e-mail that resembles a document an image or anything that can fool the average user. However, the virus also infects servers which also suggest several other scenarios on how it may be spread, for example:

  • Via social media.
  • Via cloud services.
  • Hands-on approach if the attack is targeted.
  • Fake setup files.
  • Malicious archived files.

AiraCrop Ransomware – More Information

Once AiraCrop has been installed on an infected computer or server the virus may immediately begin to modify it’s settings, setting it’s files to run and encrypt automatically on Windows Boot after it downloads them from a third-party host quietly.

After the encryption module of the AiraCrop threat has ran, it immediately gets down to business and begins to encrypt a variety of file types, primarily related to:

  • Archives.
  • Videos.
  • Images.
  • Audio files.
  • Microsoft Office documents.
  • Adobe Reader types of files.

The ransomware claims to use one of the strongest stables at this point ciphers which are believed to be AES-256 and RSA-2048 encryption algorithms to encrypt the files. One algorithm (AES) may be used to encrypt the files and then generate a unique decryption key. This decryption key can then be additionally encrypted with the other (RSA) cipher. Then the unique decryption key which is usually divided by public and private is copied and sent to the control servers of cyber-criminals who are behind AiraCrop ransomware. The files that are encoded are left to look like corrupt, and they can no longer be opened. The unique ._AiraCropEncrypted! file extension is added to them, for example:

encrypted-file-airacrop-ransowmare-sensorstechforum

After encryption, the AiraCrop virus leaves it’s distinctive ransom note, reported by victims on security forums to be the following:

→ “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;
https://6kaqkavhpu5dln6x.onion.to/
https://6kaqkavhpu5dln6x.onion.link/
https://mvy3kbqc4adhosdy.onion.to/
https://mvy3kbqc4adhosdy.onion.link/
Alternative link:
http://6kaqkavhpu5dln6x.onion
http://mvy3kbqc4adhosdy.onion
To access the alternate link is mandatory to use the TOR browser available on the link
https://www.torproject.org/download/download
Key:
{UNIQUE DECRYPTION KEY}”

Remove AiraCrop Ransomware and Restore Your Files

The bottom line is that this virus may be a ransomware used in targeted attacks specifically for servers, but it may have several other variants used for users as well. This is why malware researchers strongly advise users to be very careful while removing the virus and to back up the encrypted files in case they do not want to pay the ransom. Paying the ransom is also not recommended primarily because it is no guarantee you will receive your files back and it is also not guarantee they will want more.

To remove the AiraCrop ransomware yourself it is strongly advisable to follow our removal instructions below. The virus can be removed manually if you have the experience, but we strongly advise you to do it automatically using an advanced anti-malware program that will allow for the complete removal of the ransomware and the detection of other malware and unwanted software as well.

If you are looking for methods on how to restore your files, we have posted several alternative solutions below which should help you restore at least some of the files. Bear in mind that the methods may work for some situations, but they may fail at others, so backup your files and hope for the best.

Note! Your computer system may be affected by AiraCrop and other threats.
Scan Your PC with SpyHunter
SpyHunter is a powerful malware removal tool designed to help users with in-depth system security analysis, detection and removal of threats such as AiraCrop.
Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter’s malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter’s EULA, Privacy Policy and Threat Assessment Criteria.

To remove AiraCrop follow these steps:

1. Boot Your PC In Safe Mode to isolate and remove AiraCrop files and objects
2. Find files created by AiraCrop on your PC

Use SpyHunter to scan for malware and unwanted programs

3. Scan for malware and unwanted programs with SpyHunter Anti-Malware Tool
4. Try to Restore files encrypted by AiraCrop

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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