Amnesia-2 Ransomware
Amnesia-2 is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on September 1, 2017, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Amnesia2.
Quick facts
How Amnesia-2 ransomware works
File encryption patterns
Amnesia-2 modifies encrypted files using specific patterns to mark them as encrypted:
Ransom note and payment demands
After encrypting files, Amnesia-2 displays ransom notes demanding payment for file recovery:
notes/HOW TO RECOVER ENCRYPTED FILES.TXT
notes/ ENCRYPTED FILES.TXT
notes/Инструкция по восстановлению данных.TXT
Technical indicators
Associated executable files
The following executable files are associated with Amnesia-2 ransomware:
- guide.exe
- locker.exe
Recovery and decryption tools
Decryption tools may be available for Amnesia-2. Review the resources below:
About this analysis
This Amnesia-2 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 Amnesia-2.
Last updated: December 30, 2025
Elastio detects Amnesia-2 inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify Amnesia-2 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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