A1Lock Ransomware Removal – Restore ..txt Files

A1Lock Ransomware Removal – Restore ..txt Files

This article will help you to remove the A1Lock ransomware completely. Follow the ransomware removal instructions provided at the end.

The A1Lock ransomware is the name of a cryptovirus which is a variant of the GlobeImposter virus. The extension it places to all files after encryption is ..txt without modifying the original one or the filename. After encryption, a ransom note shows up inside an .html file containing instructions on how to pay the ransom and allegedly restore your data. Continue to read and check what ways you could try out to potentially recover your files.

Threat Summary

NameA1Lock
TypeRansomware
Short DescriptionThe ransomware encrypts files on your computer device and it shows a ransom note afterward.
SymptomsThis ransomware virus will encrypt your files and place the ..txt extension on each one of them.
Distribution MethodSpam Emails, Email Attachments
Detection Tool See If Your System Has Been Affected by A1Lock

Download

Malware Removal Tool

User ExperienceJoin Our Forum to Discuss A1Lock.
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.

A1Lock Ransomware – Ways of Delivery

A1Lock ransomware might spread its infection via different ways. The payload file which executes the malicious script for this ransomware, that in turn infects your computer machine, is circling around the Internet. Samples of this ransomware have been found by a few different malware researchers. You can see the detections of some security vendors for one such sample embedded into an executable file by checking the image taken of the VirusTotal service below:

Also, the following domains are used to deliver that payload file:

List with some of the payload download sites

Important Note! The above list with domains is for purely informational purposes and opening any domain is strongly advised against, because that will download the virus onto your computer system.

The A1Lock ransomware might be using other ways to deliver the payload file, such as social media and file-sharing sites. Freeware applications found on the Web could be promoted as helpful but also could hide the malicious script for this virus. Before opening any files after you have downloaded them, you should instead scan them with a security program. Especially if they come from suspicious places, such as emails or links. Also, don’t forget to check the size and signatures of such files for anything that seems out of place. You should read the ransomware prevention tips given in the forum.

A1Lock Ransomware – Technical Data

The A1Lock ransomware is a cryptovirus, which has been circulating with different variants. When the A1Lock ransomware encrypts your files, it will put the ..txt extension to every file and display a ransom note with payment instructions. The virus is a GlobeImposter variant.

The list with known versions for the A1Lock variant can be seen right down here:

  • Troy
  • .707
  • .490
  • .rose
  • .GOTHAM

The A1Lock ransomware can be set to make new registry entries in the Windows Registry to achieve a higher level of persistence. Such entries are usually designed in a way that will start the virus automatically with every launch of the Windows Operating System, such as the example shown right here below:

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

The ransom message is placed inside a file called Read_ME.html. This is how it looks:

The ransom note states the following:

Your files are Encrypted!
For data recovery needs decryptor.
If you want to buy a decryptor, click the button:
Yes, I want to buy
Free decryption as guarantee.
Before paying you can send us 1 file for free decryption.
To send a message or file use this link.
( If you send a file for free decryption, also send file Read_ME.html )
Support
And finally, if you can not contact, follow these two steps:
1. Install the TOP Browser from this link:
torproject.org
2. Open this link in the TOP browser: support
Your personal ID:

If you click on the TOR link (https://n224ezvhg4sgyamb.onion.link), another page with further instructions will show up and you can see it here:

It states the following:

To buy the decryptor, you must pay the cost of: 0.29 Bitcoin ($997.19)
You have 2 days for payment
time left :
after finishing offer, decryptor cost will be 0.58 Bitcoin
You can buy bitcoin on one of these sites:
blockchain.info
localbitcoins.com
btc4cc.com
send 0.29 bitcoin on the Bitcoin address: 16QzEecSU858iaWFyLEEgGXGn9ehtvMJXG
Only after payment
Enter your REAL e-mail to get the decryptor and click Enter
email
Enter

Free decryption as guarantee.

Before paying you can send us 1 file for free decryption.
To send a message or file use this form.
( If you send a file for free decryption, also send file RECOVER-FILES.HTML
message or file

Requester*

Subject*

You should NOT under any circumstances pay the ransom or write to these criminals. Nobody can give you a guarantee that you will get your files decrypted upon payment, plus in that way you will support the crooks and probably motivate them to keep making ransomware or do similar criminal acts.

A1Lock Ransomware – Encryption Process

There is no official list with file extensions that the A1Lock ransomware seeks to encrypt and the article will be updated if such a list is discovered. However, all files which get encrypted will receive the ..txt extension appended to them. The virus doesn’t change or modify the original file name or extension of the encrypted files.

The encryption algorithm which is used for the virus is currently unknown, but the ransomware encrypts files, some of which have the following extensions:

→.doc, .docx, .xls, .xlsx, .jpg, .mp3, .pdf, .png, .txt

The A1Lock cryptovirus is reported by malware researchers to erase the Shadow Volume Copies from the Windows Operating System by executing the following command:

→vssadmin.exe delete shadows /all /Quiet

Executing the above-stated command will make the encryption process more effective, as one of the main ways for file recovery will be eliminated. Continue reading to find out what methods you can try out to potentially restore some of your files.

Remove A1Lock Ransomware and Restore ..txt Files

If your computer got infected with the A1Lock ransomware virus, you should have a bit of experience in removing malware. You should get rid of this ransomware as quickly as possible before it can have the chance to spread further and infect other computers. You should remove the ransomware and follow the step-by-step instructions guide provided below.

Manually delete A1Lock from your computer

Note! Substantial notification about the A1Lock threat: Manual removal of A1Lock requires interference with system files and registries. Thus, it can cause damage to your PC. Even if your computer skills are not at a professional level, don’t worry. You can do the removal yourself just in 5 minutes, using a malware removal tool.

1. Boot Your PC In Safe Mode to isolate and remove A1Lock files and objects
2. Find malicious files created by A1Lock on your PC

Automatically remove A1Lock by downloading an advanced anti-malware program

1. Remove A1Lock with SpyHunter Anti-Malware Tool and back up your data
2. Restore files encrypted by A1Lock
Optional: Using Alternative Anti-Malware Tools

Berta Bilbao

Berta is the Editor-in-Chief of SensorsTechForum. She is a dedicated malware researcher, dreaming for a more secure cyber space.

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