Ransomware Research
Eldritch Ransomware
Eldritch is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on September 1, 2023, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Eldritch
- First Seen
- September 1, 2023
How Eldritch Ransomware Works
File Encryption Patterns
Eldritch modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..eldritchRansom Note and Payment Demands
After encrypting files, Eldritch displays ransom notes demanding payment for file recovery:
READ-THIS.txtRansom message:
notes/READ-THIS.txt
Note locations:
EveryFolderRansom message:
notes/z63narpg3.jpg
Note locations:
DesktopTechnical Indicators
Associated Executable Files
The following executable files are associated with Eldritch ransomware:
EldritchRansom.exesvchost.exe
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About This Analysis
This Eldritch 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 Eldritch.
Last updated: July 30, 2025