Sphinx Ransomware
Sphinx is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on November 1, 2019, this ransomware has been actively targeting systems worldwide.
Quick facts
How Sphinx ransomware works
File encryption patterns
Sphinx modifies encrypted files using specific patterns to mark them as encrypted:
Ransom note and payment demands
After encrypting files, Sphinx displays ransom notes demanding payment for file recovery:
notes/HOW TO DECRYPT FILES.txt
About this analysis
This Sphinx 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 Sphinx.
Last updated: December 30, 2025
Elastio detects Sphinx inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify Sphinx 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.
Recent ransomware
Explore other threats in our database