Ransomware Research

R3store Ransomware

R3store is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on May 1, 2017, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
R3store
First Seen
May 1, 2017

How R3store ransomware works

File encryption patterns

R3store modifies encrypted files using specific patterns to mark them as encrypted:

Extensions added after encryption
.r3store

Ransom note and payment demands

After encrypting files, R3store displays ransom notes demanding payment for file recovery:

fileREAD_IT.txt
notes/READ_IT.txt
Location: Desktop
message
notes/note.txt
Location: OnceOnCompletion

Technical indicators

Associated executable files

The following executable files are associated with R3store ransomware:

About this analysis

This R3store 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 R3store.

Last updated: December 30, 2025

Detection coverage

Elastio detects R3store inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify R3store 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.

See How the Hunt Engine WorksRequest a Demo

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What is R3store Ransomware? | Elastio