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:
..1txtRansom Note and Payment Demands
After encrypting files, Enigma2 displays ransom notes demanding payment for file recovery:
enigma.htaRansom message:
notes/enigma.hta
Note locations:
Desktopenigma_info.txtRansom 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:
DesktopE_N_I_G_M_A.txtRansom message:
notes/E_N_I_G_M_A.txt
Note locations:
DesktopRansom message:
notes/note.txt
Note locations:
LoginTechnical Indicators
Associated Executable Files
The following executable files are associated with Enigma2 ransomware:
78fb.execab4.exe
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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