AABN Ransomware. How to decrypt .aabn files?

Written by William Reddy

If you cannot open your photos, documents, or other files and also see the .aabn extension on them, your PC is surely infected with Aabn ransomware. It belongs to STOP/Djvu ransomware group

Aabn ransomware ciphers personal files found on the victim’s computer with the extension “.aabn” and after that leaves the ransom note in each folder which contains encrypted files. The instructions are placed on the victim’s PC in the “readme.txt” file. Its task is generally similar to other representatives of the same ransomware family: Aamv, Aawt, Stop.

What is Aabn Ransomware?

NameAabn Virus
Ransomware family1DJVU/STOP2 ransomware
Extension.aabn
Ransomware note_readme.txt
RansomFrom $490 to $980
Contactmanager@mailtemp.ch, helprestoremanager@airmail.cc
SymptomsThe images, videos, and other documents have the “.aabn” extension and cannot be opened by any programs
Fix Tool Trojan Killer – ransomware infections tool. 14-day free trial.

Aabn is file-encrypting ransomware that prevents regular access to your text files, Excel tables, videos and pics by ciphering them. It marks the encrypted files with the “.aabn” extension. Then Aabn ransomware adds a money ransom note (readme.txt) to each folder. In it, you can see the instructions to pay the ransom ($490-$980 in Bitcoin) to a certain Bitcoin address. The AES-256 or RSA-1028 cipher it utilizes to cipher the files is not decryptable with modern computers. Even quantum computers that currently exist will spend hundreds of years to find the decryption key.

How dangerous is the Aabn ransomware?

When Aabn ransomware gets in your system, it will scan your system for images, videos, and important documents. It encrypt] all widespread file formats- .psd, .doc, .docx, .xls, .xlsx, .pdf, .jpeg, .png, et cetera. When these files are located, the ransomware will cipher them and change their extension to “.aabn” to ensure that you understand what happened.

After the Aabn ransomware ciphered the data on your PC, it will generate the last “readme.txt” file on the main screen. Besides the money transferring instructions, the victims also see the email addresses to contact the cybercriminals – helprestoremanager@airmail.cc and manager@mailtemp.ch.

Here is the money ransom note that the Aabn ransomware shows to its victims:

ATTENTION!

Don't worry, you can return all your files!
All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key.
The only method of recovering files is to purchase decrypt tool and unique key for you.
This software will decrypt all your encrypted files.
What guarantees you have?
You can send one of your encrypted file from your PC and we decrypt it for free.
But we can decrypt only 1 file for free. File must not contain valuable information.
You can get and look video overview decrypt tool:
https://we.tl/t-fhnNOAYC8Z
Price of private key and decrypt software is $980.
Discount 50% available if you contact us first 72 hours, that's price for you is $490.
Please note that you'll never restore your data without payment.
Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours.

To get this software you need write on our e-mail:
manager@mailtemp.ch

Reserve e-mail address to contact us:
helprestoremanager@airmail.cc

How did the Aabn ransomware get on my computer?

The Aabn ransomware spreads by placing links to download hacked programs or games. Cybercriminals that spread this ransomware are pretty clever, and try to keep in touch with modern things. New games releases, new popular films – Aabn creators make whatever to get their victims on that. Some of the most popular methods these crooks use is one-day sites with torrent downloading links. However, using the contemporary trends is not the only manner these crooks utilize. Options that have already become classic, such as e-mail spamming, are likewise common for STOP/Djvu ransomware spreading.

Malicious email spam

The example of email spamming that may lead to Aabn ransomware injection

Preventing this ransomware does not require a lot of initiative. Following the regular principles of PC hygiene will significantly decrease all hazards. Keep in mind that opening all files you receive on e-mail is not a good habit. Even worse case is to allow macros in Microsoft Office files. But it is much better to prevent the malware attack at the moment when you have just opened the e-mail message. Inspecting the sender’s address can point out a lot about what you can anticipate, and also when you see things like “support@amazon.com”– it is likely a genuine e-mail. At the same time, stuff that tries to look like Amazon or FedEx shipment alert, but uses the e-mail address of “amazonspurrot1363@gmail.com”– must make you be on the alarm. Above, you can see the illustration of such a message.

Outlaw sources of different digital things require some additional explanation. Breaking copyright law already exposes you to the possibility of being fined. Nevertheless, utilizing torrent trackers or third-party sites to download “free” programs also exposes you to various malware. Nobody can control anonymous people that start the torrent seeding or publish the hacked program version on the website with pirated software.

Aabn virus removal instructions.

Download Trojan Killer Portable

Trojan Killer Portable Download

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This guide below shows how to use Trojan Killer Portable3 for Aabn virus detection and removal:

  • STEP 1. Download and install Trojan Killer.

  • STEP 2. Click on "Finish".

  • STEP 3. Wait until necessary updates are downloaded and installed.

  • STEP 4. Select computer scan type.

  • STEP 5. The software will begin scanning your computer.

  • STEP 6. Click on "Cure PC".

Restore the files encrypted by the Aabn ransomware

In most cases, it’s impossible to recover the files encrypted by the Aabn ransomware because the private key needed to unlock the encrypted files is only available through cybercriminals. However, we’ve listed one option you can use to recover your files below.

Warning! Make sure you remove the ransomware from your system first, otherwise, it will repeatedly encrypt your files.

If your files were encrypted with an offline key, there is a chance you can recover them by using Emsisoft Decryptor for the STOP/Djvu decryption tool. Follow the below guide to recover your files using the Emsisoft Decryptor for STOP/Djvu.

  1. You can download Emsisoft Decryptor for STOP Djvu by clicking this link.
  2. When the decryptor has finished downloading, double-click on “decrypt_STOPDjvu.exe” to run this program on your computer.
  3. Click the “Decrypt” button to start the decryption process for Aabn files. The screen will switch to a status view, informing you about your files’ current process and decryption status.
  4. The decryptor will inform you once the decryption process will be finished. If you require the report for your records, you can save it by clicking the “Save log” button.

If the Emsisoft Decryptor can’t decrypt your .aabn files and you do not plan on paying the ransom, it is advised that you make an image of the encrypted drives so that you can decrypt them in the future.

Your computer should now be free of the Aabn ransomware infection. However, suppose your current antivirus allowed this malicious program on your computer. In that case, you might want to consider purchasing the full-featured version of Trojan Killer to protect against these types of threats in the future.

AABN Ransomware — How To Remove Virus & Decrypt Files?

Name: AABN Virus

Description: AABN Virus is a STOP/DJVU family of ransomware-type virus. It encrypts files, video, photos, documents. Encrypted files can be tracked by a specific aabn extension. AABN ransomware asks victims for a ransom fee about $490 - $980 in Bitcoin.

Offer price: 480

Currency: $

Operating System: Windows

Application Category: Virus

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  2. About DJVU (STOP) Ransomware: https://gridinsoft.com/ransomware/djvu
  3. More about Trojan Killer: https://gridinsoft.com/trojankiller

About the author

William Reddy

I am from Ireland. My parents bought me a computer when I was 11, and several months after I have got a virus on this PC. I decided to enter the INSA Centre Val de Loire university after being graduated from the school. This French educational institution was offering a brand-new cybersecurity course. After getting the master's degree in cybersecurity, I've started working as a virus analyst in a little anti-malware vendor.

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