Ransomware Research

16x Ransomware

16x is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on December 1, 2020, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
16x
First Seen
December 1, 2020

How 16x ransomware works

File encryption patterns

16x modifies encrypted files using specific patterns to mark them as encrypted:

Extensions added after encryption
.16x

Ransom note and payment demands

After encrypting files, 16x displays ransom notes demanding payment for file recovery:

message
notes/note.txt
Location: OnceOnCompletion

Technical indicators

Associated executable files

The following executable files are associated with 16x ransomware:

About this analysis

This 16x 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 16x.

Last updated: December 30, 2025

Detection coverage

Elastio detects 16x inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify 16x 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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What is 16x Ransomware? | Elastio