Ransomware Research
LockedByte Ransomware
LockedByte is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on May 1, 2017, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- LockedByte
- First Seen
- May 1, 2017
How LockedByte Ransomware Works
File Encryption Patterns
LockedByte modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
./\.[a-f0-9]{8}$/Ransom Note and Payment Demands
After encrypting files, LockedByte displays ransom notes demanding payment for file recovery:
Ransom message:
notes/note.txt
Note locations:
LoginTechnical Indicators
Associated Executable Files
The following executable files are associated with LockedByte ransomware:
LockedByte.exe
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About This Analysis
This LockedByte ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery solutions, helping organizations defend against and recover from ransomware attacks like LockedByte.
Last updated: July 30, 2025