Ransomware Research

StarFire Ransomware

StarFire is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on May 1, 2025, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
StarFire
First Seen
May 1, 2025

How StarFire ransomware works

File encryption patterns

StarFire modifies encrypted files using specific patterns to mark them as encrypted:

Extensions added after encryption
.Celestial

Ransom note and payment demands

After encrypting files, StarFire displays ransom notes demanding payment for file recovery:

fileStarFire-README.txt
notes/StarFire-README.txt
Location: EveryFolder
screenshot
notes/r54vx941h.jpg
Location: Desktop

Technical indicators

Associated executable files

The following executable files are associated with StarFire ransomware:

About this analysis

This StarFire 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 StarFire.

Last updated: December 30, 2025

Detection coverage

Elastio detects StarFire inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify StarFire 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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What is StarFire Ransomware? | Elastio