Ransomware Research
Lockout Ransomware
Lockout is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on April 1, 2017, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Lockout
- First Seen
- April 1, 2017
How Lockout Ransomware Works
File Encryption Patterns
Lockout modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..LockoutRansom Note and Payment Demands
After encrypting files, Lockout displays ransom notes demanding payment for file recovery:
Payment-Instructions.txtRansom message:
notes/Payment-Instructions.txt
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with Lockout ransomware:
c.exe
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About This Analysis
This Lockout 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 Lockout.
Last updated: July 30, 2025