Ransomware Research
Epsilon Red Ransomware
Epsilon Red is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on March 1, 2021, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: EpsilonRed PowerShellScript, EpsilonRed PSS-Ransomware.
Quick Facts
- Ransomware Family
- Epsilon Red
- First Seen
- March 1, 2021
- Known Aliases
- EpsilonRed PowerShellScriptEpsilonRed PSS-Ransomware
How Epsilon Red Ransomware Works
Targeted Files
iocs -> https://github.com/sophoslabs/IoCs/blob/master/Ransomware-EpsilonRed.csv Encrypts first ~90kb
File Encryption Patterns
Epsilon Red modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..epsilonredRansom Note and Payment Demands
After encrypting files, Epsilon Red displays ransom notes demanding payment for file recovery:
HOW_TO_RECOVER.EpsilonRed.txtRansom message:
notes/HOW_TO_RECOVER.EpsilonRed.txt
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with Epsilon Red ransomware:
1.ps12.ps14.ps15.ps16.ps17.ps18.ps19.ps110.ps111.ps112.ps1C.ps1S.ps1P.exerutserv.exesJbJxCqdJhTeZjFr_install.exeRED.exe
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About This Analysis
This Epsilon Red 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 Epsilon Red.
Last updated: July 30, 2025