What is Aleta ransomware? And how does it carry out its attack?

Aleta ransomware is a file encoder type of virus that aims to encrypt files in a targeted computer. It was first discovered in 2017 and it mostly targets users from Argentina, Belgium, and Spain. Once it enters a computer as a Trojan, it makes various alterations to help it carry out its attack. These alterations involve the addition of more malicious files that are usually placed in system folders and are used to avoid detection from antivirus programs.
According to security experts, it is a new version of BTCW are ransomware which is why it is also known as “BTCWare Aleta ransomware”. After the system modifications and to get started on its attack, Aleta ransomware scans the entire drive of the affected computer looking for files to encrypt. It mostly locks user-generated files like documents, pictures, videos, audio files and many more. It uses a combination of AES and RSA in encrypting files. After the encryption, Aleta ransomware makes its presence known by releasing a ransom note in a file named “_READ_ME_#!.inf”. It contains the following message:
“All your files have been encrypted!
All your files have been encrypted due to a security problem with your PC. If you want to restore them, write us to the e-mail [email protected] in body of your message write your ID
You have to pay for decryption in Bitcoins. The price depends on how fast you write to us. After payment we will send you the decryption tool that will decrypt all your files.
Free decryption as guarantee
Before paying you can send us up to 1 file for free decryption. The total size of files must be less than 1Mb (non archived), and files should not contain valuable information. (databases, backups, large excel sheets, etc.)
How to obtain Bitcoins
The easiest way to buy bitcoins is LocalBitcoins site. You have to register, click ‘Buy bitcoins’, and select the seller by payment method and price.
hxxps://localbitcoins.com/buy_bitcoins
Also you can find other places to buy Bitcoins and beginners guide here:
hxxp://www.coindesk.com/information/how-can-i-buy-bitcoins/
Attention!
Do not rename encrypted files.
Do not try to decrypt your data using third party software, it may cause permanent data loss.
Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.
Your ID –”
 
How does Aleta ransomware spread online?
Aleta ransomware, like other BTCWare variants spread by using the commonly used ransomware distribution method – spam emails. Creators of Aleta attach a file containing the malicious payload. Once this malicious payload is executed, it will launch Aleta ransomware in the system. Thus, you need to be extra cautious of the attachments you download from your emails and make sure to verify the email’s legitimacy.
 
Use the following removal instructions to terminate Aleta ransomware from your computer.
Step1. Open the Task Manager simply by tapping Ctrl + Shift + Esc keys on your keyboard.
Step2. Under the Task Manager, go to the Processes tab and look for any suspicious-looking process which takes up most of your CPU’s resources and is most likely related to Aleta ransomware.

Step3. After that, close the Task Manager.
Step4. Tap Win + R, type in appwiz.cpl and click OK or tap Enter to open Control Panel’s list of installed programs.
Step5. Under the list of installed programs, look for Aleta ransomware or anything similar and then uninstall it.

Step6. Next, close Control Panel and tap Win + E keys to launch File Explorer.
Step7. Navigate to the following locations below and look for Aleta ransomware’s malicious components such as “_READ_ME_#!.inf” and other suspicious files then delete all of them.

  • %TEMP%
  • %APPDATA%
  • %APPDATA%\Microsoft\Windows\Templates\
  • %USERPROFILE%\Downloads
  • %USERPROFILE%\Desktop

Step8. Close the File Explorer.
Before you proceed to the next steps below, make sure that you are tech savvy enough to the point where you know exactly how to use and navigate your computer’s Registry. Keep in mind that any changes you make will highly impact your computer. To save you the trouble and time, you can just use [product-name] this system tool is proven to be safe and excellent enough that hackers won’t be able to hack into it. But if you can manage Windows Registry well, then, by all means, go on to the next steps.
Step9. Tap Win + R to open Run and then type in regedit in the field and tap enter to pull up Windows Registry.

Step10. Navigate to the following path:

  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • HKEY_CURRENT_USER\Control Panel\Desktop\
  • HKEY_USERS\.DEFAULT\Control Panel\Desktop\

Step11. Delete the registry keys and sub-keys created by Aleta ransomware.
Step12. Close the Registry Editor and empty your Recycle Bin.
Try to recover your encrypted files using the Aleta Volume copies
Restoring your encrypted files using Windows’ Previous Versions feature will only be effective if Aleta ransomware hasn’t deleted the Aleta copies of your files. But still, this is one of the best and free methods there is, so it’s definitely worth a shot.
To restore the encrypted file, right-click on it and select Properties, a new window will pop-up, then proceed to Previous Versions. It will load the file’s previous version before it was modified. After it loads, select any of the previous versions displayed on the list like the one in the illustration below. And then click the Restore button.

Once you’re done executing the steps given above, you need to continue the removal process of Aleta ransomware using a reliable program like [product-name]. How? Follow the advanced removal steps below.
Perform a full system scan using [product-code]. To do so, follow these steps:

  1. Turn on your computer. If it’s already on, you have to reboot
  2. After that, the BIOS screen will be displayed, but if Windows pops up instead, reboot your computer and try again. Once you’re on the BIOS screen, repeat pressing F8, by doing so the Advanced Option shows up.

  1. To navigate the Advanced Option use the arrow keys and select Safe Mode with Networking then hit
  2. Windows will now load the SafeMode with Networking.
  3. Press and hold both R key and Windows key.

  1. If done correctly, the Windows Run Box will show up.
  2. Type in the URL address, [product-url] in the Run dialog box and then tap Enter or click OK.
  3. After that, it will download the program. Wait for the download to finish and then open the launcher to install the program.
  4. Once the installation process is completed, run [product-code] to perform a full system scan.
  5. After the scan is completed click the “Fix, Clean & Optimize Nowbutton.
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