.LOCKED File Extension

Ransomware Encrypted File

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What is a LOCKED file?

A LOCKED file is a file encrypted by the Locked virus, a trojan horse utilized by cybercriminals. It contains a user's file, such as a .PDF or .XLSX file, encrypted with AES-256 encryption. LOCKED files became prevalent in 2016 along with .LOCKY files that are encrypted by the Locky virus.

More Information

The Locked virus is malware that is commonly referred to as ransomware, where the purpose of the virus is to take your files hostage and force you to pay the perpetrator (by way of bitcoin) to unlock your files. The virus is typically introduced through an email attachment, P2P network, or fake software update. Once the virus affects your computer it begins scrambling your files, renaming them, and encrypting them. The virus then generates a .TXT ransom note informing you of the takeover and what you need to do to recover your files.

How to open a LOCKED file

There is no program currently available to effectively restore your files. If you back up your files, you can execute a full System Restore.


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 LOCKED files

System Restore

Verified by FileInfo.com

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

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