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:

message

Ransom message:

notes/note.txt

Note locations:

Login
fileenigma_encr.html

Ransom message:

notes/enigma_encr.html

Note locations:

DesktopTemp
fileenigma_encr.txt

Ransom message:

notes/enigma_encr.txt

Note locations:

Desktop
fileenigma.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: October 30, 2025

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