Ransomware Research
Hydra-2023 Ransomware
Hydra-2023 is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on December 1, 2023, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Hydra-2023
- First Seen
- December 1, 2023
How Hydra-2023 Ransomware Works
Targeted Files
https://app.any.run/tasks/1c6f8580-bbfe-4ea5-9439-c6ffe1c77f72/ Full extension -> [conectme@tutanota.com][ID=C63F241F]errordb.txt.HYDRA
File Encryption Patterns
Hydra-2023 modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..HYDRAPrefixes added to encrypted files:
[conectme@tutanota.com]Ransom Note and Payment Demands
After encrypting files, Hydra-2023 displays ransom notes demanding payment for file recovery:
#FILESENCRYPTED.txtRansom message:
notes/#FILESENCRYPTED.txt
Note locations:
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About This Analysis
This Hydra-2023 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 Hydra-2023.
Last updated: July 30, 2025