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Ransomware Research
Enigma2 Ransomware
Enigma2 is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on October 1, 2016, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Enigma 2.
Quick Facts
- Ransomware Family
- Enigma2
- First Seen
- October 1, 2016
- Known Aliases
- Enigma 2
How Enigma2 Ransomware Works
File Encryption Patterns
Enigma2 modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..1txt
Ransom Note and Payment Demands
After encrypting files, Enigma2 displays ransom notes demanding payment for file recovery:
enigma.hta
Ransom message:
notes/enigma.hta
Note locations:
Desktop
enigma_info.txt
Ransom message:
notes/enigma_info.txt
Note locations:
Desktop
/^chto_s_faylami_1txt___\d___messg\.txt$/
Ransom message:
notes/chto_s_faylami_1txt___9___messg.txt
Note locations:
Desktop
E_N_I_G_M_A.txt
Ransom message:
notes/E_N_I_G_M_A.txt
Note locations:
Desktop
Ransom message:
notes/note.txt
Note locations:
Login
Technical Indicators
Associated Executable Files
The following executable files are associated with Enigma2 ransomware:
78fb.exe
cab4.exe
Elastio Can Help You
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About This Analysis
This Enigma2 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 Enigma2.
Last updated: July 30, 2025