Ransomware Research

Done Ransomware

Done is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on December 1, 2012, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
Done
First Seen
December 1, 2012

How Done ransomware works

File encryption patterns

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

Extensions added after encryption
.done

Ransom note and payment demands

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

filehow to repair.txt
notes/how to repair.txt

About this analysis

This Done 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 Done.

Last updated: December 30, 2025

Detection coverage

Elastio detects Done inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify Done 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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