FuuCry Ransomware
FuuCry is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on November 1, 2017, this ransomware has been actively targeting systems worldwide.
Quick facts
How FuuCry ransomware works
File encryption patterns
FuuCry modifies encrypted files using specific patterns to mark them as encrypted:
Ransom note and payment demands
After encrypting files, FuuCry displays ransom notes demanding payment for file recovery:
notes/READ ME FOR DECRYPT.txt
notes/note.txt
About this analysis
This FuuCry ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery, helping organizations defend against and recover from ransomware attacks like FuuCry.
Last updated: December 30, 2025
Elastio detects FuuCry inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify FuuCry across live data, replicated data, and backups. If this family is in your environment, Elastio finds it before encryption completes. Run a scan against your recovery points to confirm.
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