Ransomware Research

EDA2 Ransomware

EDA2 is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on November 1, 2016, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
EDA2
First Seen
November 1, 2016

How EDA2 ransomware works

File encryption patterns

EDA2 modifies encrypted files using specific patterns to mark them as encrypted:

Extensions added after encryption
.xtbl

Ransom note and payment demands

After encrypting files, EDA2 displays ransom notes demanding payment for file recovery:

fileDecryption_instructions.TXT
notes/Decryption_instructions.TXT
Location: Desktop

Technical indicators

Associated executable files

The following executable files are associated with EDA2 ransomware:

About this analysis

This EDA2 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 EDA2.

Last updated: December 30, 2025

Detection coverage

Elastio detects EDA2 inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify EDA2 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 EDA2 Ransomware? | Elastio