FlyBox Ransomware
FlyBox is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2020, this ransomware has been actively targeting systems worldwide.
Quick facts
How FlyBox ransomware works
File encryption patterns
FlyBox modifies encrypted files using specific patterns to mark them as encrypted:
Ransom note and payment demands
After encrypting files, FlyBox displays ransom notes demanding payment for file recovery:
notes/HOW TO DECRYPT YOUR FILES.txt
Technical indicators
Associated executable files
The following executable files are associated with FlyBox ransomware:
- Keygen.exe
About this analysis
This FlyBox 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 FlyBox.
Last updated: December 30, 2025
Elastio detects FlyBox inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify FlyBox 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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