Ransomware Research

APT2016 Ransomware

APT2016 is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on October 1, 2016, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
APT2016
First Seen
October 1, 2016

How APT2016 ransomware works

File encryption patterns

APT2016 modifies encrypted files using specific patterns to mark them as encrypted:

Extensions added after encryption
.dll

Ransom note and payment demands

After encrypting files, APT2016 displays ransom notes demanding payment for file recovery:

fileDECRYPT_YOUR_FILES.HTML
notes/DECRYPT_YOUR_FILES.HTML.txt

About this analysis

This APT2016 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 APT2016.

Last updated: December 30, 2025

Detection coverage

Elastio detects APT2016 inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify APT2016 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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