Ransomware Research

Saturn Ransomware

Saturn is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on February 1, 2018, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Saturn RaaS.

Quick facts

Ransomware Family
Saturn
First Seen
February 1, 2018
Known Aliases
Saturn RaaS

How Saturn ransomware works

File encryption patterns

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

Extensions added after encryption
.saturn

Ransom note and payment demands

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

file#DECRYPT_MY_FILES#.txt
notes/#DECRYPT_MY_FILES#.txt
Location: EveryFolder
file#DECRYPT_MY_FILES#.html
notes/#DECRYPT_MY_FILES#.html
Location: EveryFolder
screenshot
notes/#DECRYPT_MY_FILES#.html
Location: Desktop
file#DECRYPT_MY_FILES#.vbs
notes/#DECRYPT_MY_FILES#.vbs
Location: Desktop

Technical indicators

Associated executable files

The following executable files are associated with Saturn ransomware:

About this analysis

This Saturn 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 Saturn.

Last updated: December 30, 2025

Detection coverage

Elastio detects Saturn inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify Saturn 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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