Ransomware Research
FileCryptor Ransomware
FileCryptor is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on January 1, 2023, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- FileCryptor
- First Seen
- January 1, 2023
How FileCryptor Ransomware Works
Targeted Files
Encrypts files only in the folder from which it is run
File Encryption Patterns
FileCryptor modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
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About This Analysis
This FileCryptor 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 FileCryptor.
Last updated: July 30, 2025