Ransomware Research

EduCrypt Ransomware

EduCrypt is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2016, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: HiddenTear 2.0.

Quick facts

Ransomware Family
EduCrypt
First Seen
June 1, 2016
Known Aliases
HiddenTear 2.0

How EduCrypt ransomware works

File encryption patterns

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

Extensions added after encryption
.isis

Ransom note and payment demands

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

fileREADME.txt
notes/README.txt
Location: RansomPayloadStartFolder

Technical indicators

Associated executable files

The following executable files are associated with EduCrypt ransomware:

Recovery and decryption tools

Decryption tools may be available for EduCrypt. Review the resources below:

0

About this analysis

This EduCrypt 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 EduCrypt.

Last updated: December 30, 2025

Detection coverage

Elastio detects EduCrypt inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify EduCrypt 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

Recent ransomware

Explore other threats in our database

Wxlongda2025VeilCrypt2025TitanLabooboo2025SolidBit2022SnapHackLocker2024PySystemUpdate2025PySimCrypt2025Monkey2025Lol2025HWID2025
View all ransomware →