Ransomware Research

Blaze Ransomware

Blaze is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on November 1, 2021, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
Blaze
First Seen
November 1, 2021

How Blaze ransomware works

File encryption patterns

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

Extensions added after encryption
.blaze

Ransom note and payment demands

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

fileHow To Decrypt.txt
notes/How To Decrypt.txt
Location: EveryFolder

About this analysis

This Blaze 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 Blaze.

Last updated: December 30, 2025

Detection coverage

Elastio detects Blaze inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify Blaze 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 Blaze Ransomware? | Elastio