Retis Ransomware
Retis is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on December 1, 2017, this ransomware has been actively targeting systems worldwide.
Quick facts
How Retis ransomware works
File encryption patterns
Retis modifies encrypted files using specific patterns to mark them as encrypted:
Ransom note and payment demands
After encrypting files, Retis displays ransom notes demanding payment for file recovery:
notes/wallpaper.bmp
Technical indicators
Associated executable files
The following executable files are associated with Retis ransomware:
- RANSOMWARE.exe
- retis ransomware
About this analysis
This Retis 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 Retis.
Last updated: December 30, 2025
Elastio detects Retis inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify Retis 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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