Ransomware Research
Hydra Ransomware
Hydra is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on March 1, 2020, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Hidra, Hydra Go, Hydra 2020.
Quick Facts
- Ransomware Family
- Hydra
- First Seen
- March 1, 2020
- Known Aliases
- HidraHydra GoHydra 2020
How Hydra Ransomware Works
Ransom Note and Payment Demands
After encrypting files, Hydra displays ransom notes demanding payment for file recovery:
__________WHY FILES NOT WORK__________.txtRansom message:
notes/__________WHY FILES NOT WORK__________.txt
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with Hydra ransomware:
Hydra Ransomware.exemafi.exe
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About This Analysis
This Hydra 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.
Last updated: July 30, 2025