What is HILDACRYPT v1.0 ransomware? And how does it carry out its attack?

HILDACRYPT v1.0 ransomware is one of the latest file-encrypting threats discovered in the last week of August 2019. At the time of writing, it isn’t clear if it belongs to any ransomware group. It uses a combination of RSA 4096 and AES 256 encryption algorithms in locking important data and then adds a “.HILDA” suffix to every affected file.
Following its infiltration, HILDACRYPT v1.0 ransomware will employ an information gathering module used to collect information in the system. The information collected is then used for the next module called stealth protection which prevents any programs installed in the system from interrupting the attack. The stealth protection process is done using signature scans that looks for antivirus engines as well as virtual machine hosts and debug environments. It may also launch or repress certain processes in the system and edit some registry keys and entries in the Windows Registry in order to run on every system startup automatically. After all these changes are carried out, it looks for files with specific formats and encrypts them using AES 256 and RSA 4096 ciphers. Once the encryption is completed, it adds the “.HILDA” extension to every affected file and releases a file named “READ_IT.txt” which contains the following message:
“—+ HILDACRYPT v1.0 +—
All the files on this computer have been encrypted with a RSA-4096 + AES-256
cryptographic combination. These algorithms are used by the NSA and other top tier organisations.

Backups were encrypted, and shadow copies were removed. So F8 or any other methods may damage encrypted data and make it unrecoverable.
We exclusively have decryption software for your situation.
More than a year ago, world experts have recognized the impossibility of
decrypting by any means without the original decryptor.
NO decryption software is available to the public.
Antivirus companies, researchers, IT specialists, and no one else can help you recover your data.

DO NOT RESET OR SHUTDOWN – file may be damaged.
DO NOT DELETE readme files.txt
DO NOT REMOVE OR RENAME the encrypted files.
This may lead to the impossibility of your files being recovered.

To confirm our honest intentions, send us 2 different files and you well get
them decrypted. They must not contain any sensitive information and must not
be archived.

To get info (decrypt your files) contact us at:
[email protected]
[email protected]

You well receive a BTC address for payment in the reply letter.
No loli is safe 🙂 — hxxps://www.youtube.com/watch?v=XCojP2Ubuto”
How does HILDACRYPT v1.0 ransomware proliferate?
It isn’t clear how the authors of HILDACRYPT v1.0 ransomware disseminate this ransomware’s malicious payload but according to researchers it might be done through spam emails. This isn’t surprising as cyber crooks have been using this distribution method for a long time now. Thus, you need to beware of these antics used by cyber criminals to infect your computer with cyber threats like HILDACRYPT v1.0 ransomware.
Obliterate HILDACRYPT v1.0 ransomware from your computer using the removal guide provided below as well as the advanced removal steps that follow.
Step 1: First, tap the Ctrl + Shift + Esc keys in your keyboard to open the Task Manager.
Step 2: Under the Task Manager, go to the Processes tab and look for a process named “Encryptor.exe” and “Microsoft PDF Document (32 bit)”, as well as any suspicious-looking process that takes up most of your CPU’s resources and is most likely related to HILDACRYPT v1.0 ransomware.

Step 3: After that, close the Task Manager.
Step 4: Tap Win + R, type in appwiz.cpl and click OK or tap Enter to open Programs and Features under Control Panel.
Step 5: Under the list of installed programs, look for HILDACRYPT v1.0 ransomware or anything similar and then uninstall it.

Step 6: Next, close Control Panel and tap Win + E keys to launch File Explorer.
Step 7: Navigate to the following locations below and look for HILDACRYPT v1.0 ransomware’s malicious components such as READ_IT.txt, Encryptor.exe and [random].exe, as well as other suspicious files, then delete all of them.

  • %TEMP%
  • %WINDIR%\System32\Tasks
  • %APPDATA%\Microsoft\Windows\Templates\
  • %USERPROFILE%\Downloads
  • %USERPROFILE%\Desktop

Step 8: 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.
Step 9: Tap Win + R to open Run and then type in regedit in the field and tap enter to pull up Windows Registry.

Step 10: Navigate to the following path:

  • HKEY_CURRENT_USER\Control Panel\Desktop\
  • HKEY_USERS\.DEFAULT\Control Panel\Desktop\
  • 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

 Step 11: Delete the registry keys and sub-keys created by HILDACRYPT v1.0 ransomware.
Step 12: Close the Registry Editor and empty the Recycle Bin.
Try to recover your encrypted files using the Shadow Volume copies
Restoring your encrypted files using Windows’ Previous Versions feature will only be effective if HILDACRYPT v1.0 ransomware hasn’t deleted the shadow 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.

Make sure that you have eliminated HILDACRYPT v1.0 ransomware from your computer successfully as well as its malicious components by using a trusted and reliable program like [product-name]. Refer to the following guidelines on how to use it.
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 it.
  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 Safe Mode 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.

  1. After the scan is completed click the “Fix, Clean & Optimize Now” button.


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