Ransomware Research
OopsLocker Ransomware
OopsLocker is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on July 1, 2017, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- OopsLocker
- First Seen
- July 1, 2017
How OopsLocker Ransomware Works
File Encryption Patterns
OopsLocker modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..oopsRansom Note and Payment Demands
After encrypting files, OopsLocker displays ransom notes demanding payment for file recovery:
Ransom message:
notes/note.txt
Note locations:
OnceOnCompletionTechnical Indicators
Associated Executable Files
The following executable files are associated with OopsLocker ransomware:
ransomransom.EXEoops.exefile009_oops.exe
Elastio Can Help You
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About This Analysis
This OopsLocker 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 OopsLocker.
Last updated: July 30, 2025