Ransomware Research

0APT Ransomware

0APT is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on February 1, 2026, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
0APT
First Seen
February 1, 2026

How 0APT ransomware works

File modification behavior

0APT updates file modification timestamps after encryption.

File encryption patterns

0APT modifies encrypted files using specific patterns to mark them as encrypted:

Extensions added after encryption
  • .0apt

Ransom note and payment demands

After encrypting files, 0APT displays ransom notes demanding payment for file recovery:

screenshot
notes/embedded_wallpaper.png

Location: Desktop

fileREADME0apt.txt.0apt
notes/README0apt.txt.0apt

Location: EveryFolder

Technical indicators

Associated executable files

The following executable files are associated with 0APT ransomware:

  • f1dne0f.exe
  • 5B1B-C7AA-26E4-0APT-KEY.exe

About this analysis

This 0APT 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 0APT.

Last updated: May 6, 2026

Detection coverage

Elastio detects 0APT inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify 0APT across live data, replicated data, and backups. If this family is in your environment, Elastio finds it before encryption completes. Run a hunt against your recovery points to confirm.