Ransomware Research

Protected Ransomware

Protected 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
Protected
First Seen
November 1, 2016

How Protected ransomware works

File encryption patterns

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

Extensions added after encryption
.protected

Ransom note and payment demands

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

fileHOW_TO_RESTORE_YOUR_DATA.html
notes/HOW_TO_RESTORE_YOUR_DATA.html
Location: EveryFolder

Technical indicators

Associated executable files

The following executable files are associated with Protected ransomware:

About this analysis

This Protected 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 Protected.

Last updated: December 30, 2025

Detection coverage

Elastio detects Protected inside your data and backups.

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