Ransomware Research
Enigma Ransomware
Enigma is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on August 1, 2016, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Enigma
- First Seen
- August 1, 2016
How Enigma Ransomware Works
File Encryption Patterns
Enigma modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..enigma
Ransom Note and Payment Demands
After encrypting files, Enigma displays ransom notes demanding payment for file recovery:
Ransom message:
notes/note.txt
Note locations:
Login
enigma_encr.html
Ransom message:
notes/enigma_encr.html
Note locations:
Desktop
Temp
enigma_encr.txt
Ransom message:
notes/enigma_encr.txt
Note locations:
Desktop
enigma.hta
Ransom message:
notes/enigma.hta
Note locations:
Temp
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About This Analysis
This Enigma 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 Enigma.
Last updated: July 30, 2025