Ransomware Research

H3r Ransomware

H3r is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on May 1, 2023, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
H3r
First Seen
May 1, 2023

How H3r ransomware works

File encryption patterns

H3r modifies encrypted files using specific patterns to mark them as encrypted:

Extensions added after encryption
.h3r

Ransom note and payment demands

After encrypting files, H3r displays ransom notes demanding payment for file recovery:

fileinfo.txt
notes/info.txt
Location: Desktop, RootDiscs
fileInfo.hta
notes/Info.hta
Location: StartUp

Technical indicators

Associated executable files

The following executable files are associated with H3r ransomware:

About this analysis

This H3r 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 H3r.

Last updated: December 30, 2025

Detection coverage

Elastio detects H3r inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify H3r 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 H3r Ransomware? | Elastio