How to remove Aabn virus

Aabn ransomware is the threat that makes previously functional files useless

Aabn file virus is a malicious program designed to encrypt personal files and demand ransom money in return for a decryption key. This type of ransomware is typically spread through email attachments or by downloading infected files from malicious websites. Malicious macros^[1] get used for spreading virus payloads on various machines via the internet.

If your computer has been infected with this virus, do not contact the criminals and pay the ransom. Instead, try using a reputable malware removal tool to remove the virus and protect your computer from future attacks. These threats are not controlled by trustworthy people, so the Aabn ransomware virus needs to be removed.

The creators of the file virus will not give up their encryption key unless they are compensated with a payment of 490 US dollars in Bitcoin. If payment is not made within the first 72 hours, the ransom amount is increased by 50% in an attempt to convince victims that paying is their best and only option.

The attackers provide two email addresses (support@bestyourmail.ch, datarestorehelp@airmail.cc) for contact, but even if a victim wants to restore their data, negotiation is not advised as it will likely not be successful. Direct dealing with criminals is never a good idea, and experts^[2] never advise doing so.

More about the threat

DJVU malware is often delivered in spam email attachments that contain packages with the virus payload hidden inside. However, this family is more known for using keygens, cracks for games, and software that gets distributed online via pirating services. When these attachments or files are opened by unsuspecting victims, the virus is triggered and can begin to encrypt files on the victim's computer.

The _readme.txt file contains information about the ransom demand, including how much money you need to pay. However, don't fall victim to this! There have been other victims who have dealt with versions of this family, and it rarely results in the full recovery after payments. 

Issues with the virus family

The Aabn ransomware virus is a version of the Djvu ransomware family that releases new versions on a weekly basis. The threat has been known since 2018. These recent improvements added to the variants released this year show that the infection cannot be decrypted, so this version and the recently spread variants cannot be recoverable.

Aabn file virus uses coding and encryption to make files unreadable without the correct key. Unlike earlier versions, this virus does not use offline ids, which means that online keys can be obtained by victims once they pay. However, it is also possible for researchers to decode the virus. This rarely happens, but it is still worth trying if you have been infected by this virus.

If your computer got infected with one of the Djvu variants, you should try using Emsisoft decryptor for Djvu/STOP. It is important to mention that this tool will not work for everyone – it only works if data was locked with an offline ID due to malware failing to communicate with its remote servers.

Even if your case meets this condition, somebody from the victims has to pay criminals, retrieve an offline key, and then share it with security researchers at Emsisoft. As a result, you might not be able to restore the encrypted files immediately. Thus, if the decryptor says your data was locked with an offline ID but cannot be recovered currently, you should try later. You also need to upload a set of files – one encrypted and a healthy one to the company's servers before you proceed.

• Download the app from the official Emsisoft website.
• After pressing Download button, a small pop-up at the bottom, titled decrypt_STOPDjvu.exe should show up – click it.
  
• If User Account Control (UAC) message shows up, press Yes.
• Agree to License Terms by pressing Yes.
  
  
• After Disclaimer shows up, press OK.
• The tool should automatically populate the affected folders, although you can also do it by pressing Add folder at the bottom.
  
• Press Decrypt.
  
  

From here, there are three available outcomes:

1. “Decrypted!” will be shown under files that were decrypted successfully – they are now usable again.
2. “Error: Unable to decrypt file with ID:” means that the keys for this version of the virus have not yet been retrieved, so you should try later.
3. “This ID appears to be an online ID, decryption is impossible” – you are unable to decrypt files with this tool.

Removing the infection

Aabn file virus can be removed using proper tools that can perform the file-locking virus removal process. Anti-malware tools and AV detection^[3] software can check systems and find all malicious programs or files. These detection rates of already existing samples show that tools like this can help significantly in removing the virus.

It is important to scan your system with an antivirus program as soon as you suspect that the Aabn ransomware virus may be present. This will help to identify any related files or malware and remove them from your system. Experts recommend running a full system scan to ensure that all infections are removed and that no further damage can be done.

Once the scan is complete, you can then focus on recovering your files using alternate methods. If you add files on the machine while the threat is active still, the infection can lock added data again. Fortunately, there are a few different ways that you can go about recovering your files after the Aabn ransomware virus has been removed from your system.

Run tools like SpyHunterCombo Cleaner or MalwarebytesMalwarebytes and make sure to clear all infection files and double-check before doing anything with those affected files. One method is to try and use a backup that you may have created before the infection. If you do not have a backup, you may be able to use file recovery software to scan your system for any lost or deleted files.

Recovering the machine

Once a computer is infected with malware, its system is changed to operate differently. For example, an infection can alter the Windows registry database, damage vital bootup and other sections, delete or corrupt DLL files, etc. Once a system file is damaged by malware, antivirus software is not capable of doing anything about it, leaving it just the way it is. Consequently, users might experience performance, stability, and usability issues, to the point where a full Windows reinstall is required.

Therefore, we highly recommend using a one-of-a-kind, patented technology of FortectIntego repair. Not only can it fix virus damage after the infection, but it is also capable of removing malware that has already broken into the system thanks to several engines used by the program. Besides, the application is also capable of fixing various Windows-related issues that are not caused by malware infections, for example, Blue Screen errors, freezes, registry errors, damaged DLLs, etc.

• Download the application by clicking on the link above
• Click on the ReimageRepair.exe
  
  
• If User Account Control (UAC) shows up, select Yes
• Press Install and wait till the program finishes the installation process
• The analysis of your machine will begin immediately
• Once complete, check the results – they will be listed in the Summary
• You can now click on each of the issues and fix them manually
• If you see many problems that you find difficult to fix, we recommend you purchase the license and fix them automatically.