Ransomware Research
FCrypt Ransomware
FCrypt is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on February 1, 2019, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- FCrypt
- First Seen
- February 1, 2019
How FCrypt Ransomware Works
Targeted Files
Written in AutoIt Very long encryption process (attempts to encrypt all files on the machine)
File Encryption Patterns
FCrypt modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..FCryptRansom Note and Payment Demands
After encrypting files, FCrypt displays ransom notes demanding payment for file recovery:
#HELP-DECRYPT-FCRYPT1.1#.txtRansom message:
notes/#HELP-DECRYPT-FCRYPT1.1#.txt
Note locations:
DesktopTechnical Indicators
Associated Executable Files
The following executable files are associated with FCrypt ransomware:
WinWord.exeFCrypt 1.1.exeFCrypt v1.1.exeFCrypt.upx.exe
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About This Analysis
This FCrypt 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 FCrypt.
Last updated: July 30, 2025