Ransomware Research
One Ransomware
One 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
- One
- First Seen
- April 1, 2017
How One Ransomware Works
Targeted Files
NOSAMPLE
File Encryption Patterns
One modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..oneRansom Note and Payment Demands
After encrypting files, One displays ransom notes demanding payment for file recovery:
Recupere seus arquivos aqui.txtRansom message:
notes/Recupere seus arquivos aqui.txt
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About This Analysis
This One 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 One.
Last updated: July 30, 2025