Ransomware Research

Smile Ransomware

Smile 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
Smile
First Seen
May 1, 2025

How Smile ransomware works

File encryption patterns

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

Extensions added after encryption
.SM$LE

Ransom note and payment demands

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

fileSM$LE-read-it.txt
notes/SM$LE-read-it.txt
Location: EveryFolder
screenshot
notes/5umbw6040.jpg
Location: Desktop

Technical indicators

Associated executable files

The following executable files are associated with Smile ransomware:

About this analysis

This Smile 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 Smile.

Last updated: December 30, 2025

Detection coverage

Elastio detects Smile inside your data and backups.

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