.LUCY File Extension

Black Rose Lucy Ransomware Encrypted File

Developer Lucy Gang
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What is a LUCY file?

A file with the .lucy extension has been renamed and encrypted by Black Rose Lucy ransomware. It could be an encrypted image, video, document or other type of file. Because the file is encrypted, you cannot open it. The .lucy extension is added to the file's normal extension, producing an extension like .jpg.lucy.

More Information

Black Rose Lucy is a form of ransomware that affects Android devices. It encrypts users' files, appends them with the .lucy extension, and then produces a ransom note that is purportedly from the FBI. The ransom note asks users to pay a "penalty" of $500 to regain access to their files. (FileInfo recommends you never pay a ransom to decrypt your files.)

In addition to encrypting your files, Black Rose Lucy can:

  • Collect your device data
  • Connect your device to a remote server, which allows cybercriminals to control your device
  • Install additional malware

As such, if your device has been infected by Black Rose Lucy ransomware, you should restore your device using a backup created before the device became infected as soon as possible.

How did my device become infected by Black Rose Lucy ransomware?

Black Rose Lucy is distributed primarily via social media posts and messages. These posts and messages tell you that, to continue watching a video on your phone, you "must enable Streaming Video Optimization (SVO)." If you agree to"enable Streaming Video Optimization (SVO)" (which does not exist), Black Rose Lucy infects your device.

How to open a LUCY file

Unfortunately, LUCY files cannot currently be decrypted or restored to their original state. The best option to retrieve your files (and remove the Black Rose Lucy ransomware from your device) is to restore your data from a backup created before your device became infected by Black Rose Lucy ransomware.


FileInfo.com recommends you never pay a ransom to decrypt files encrypted by ransomware. Paying a ransom encourages ransomware distributors to continue their efforts, and there is no guarantee that paying a ransom will give you access to your files. Instead, you should restore your data from a recent backup created before the ransomware infected your computer.

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Programs that open LUCY files

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Verified by FileInfo.com

The FileInfo.com team has independently researched the Black Rose Lucy Ransomware Encrypted file format and Android apps listed on this page. Our goal is 100% accuracy and we only publish information about file types that we have verified.

If you would like to suggest any additions or updates to this page, please let us know.