Ransomware Research
Crystal Ransomware
Crystal is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on August 1, 2017, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Crystal
- First Seen
- August 1, 2017
How Crystal Ransomware Works
Targeted Files
Current sample -> multiTool (stealer, backdoor)
File Encryption Patterns
Crystal modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..CRYSTALTechnical Indicators
Associated Executable Files
The following executable files are associated with Crystal ransomware:
Multi Client.exe
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About This Analysis
This Crystal 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 Crystal.
Last updated: July 30, 2025