Ransomware Research
Whoopsie Ransomware
Whoopsie is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2018, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Whoopsie
- First Seen
- June 1, 2018
How Whoopsie Ransomware Works
File Encryption Patterns
Whoopsie modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..encRansom Note and Payment Demands
After encrypting files, Whoopsie displays ransom notes demanding payment for file recovery:
Ransom message:
notes/note.txt
Note locations:
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About This Analysis
This Whoopsie 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 Whoopsie.
Last updated: July 30, 2025