Matryoshka Ransomware
Matryoshka is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on May 1, 2021, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Матрёшка Рансомваре.
Quick facts
How Matryoshka ransomware works
File encryption patterns
Matryoshka modifies encrypted files using specific patterns to mark them as encrypted:
Ransom note and payment demands
After encrypting files, Matryoshka displays ransom notes demanding payment for file recovery:
notes/note.txt
Technical indicators
Associated executable files
The following executable files are associated with Matryoshka ransomware:
- NitroSnypa.exe
- Nitro_Snypa.exe
About this analysis
This Matryoshka 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 Matryoshka.
Last updated: December 30, 2025
Elastio detects Matryoshka inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify Matryoshka 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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