Ransomware Research

Boris HT Ransomware

Boris HT is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2018, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
Boris HT
First Seen
June 1, 2018

How Boris HT ransomware works

File encryption patterns

Boris HT modifies encrypted files using specific patterns to mark them as encrypted:

Extensions added after encryption
.boris

Ransom note and payment demands

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

fileREADME.txt
notes/README.txt
Location: Desktop, UserProfile

Technical indicators

Associated executable files

The following executable files are associated with Boris HT ransomware:

About this analysis

This Boris HT 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 Boris HT.

Last updated: December 30, 2025

Detection coverage

Elastio detects Boris HT inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify Boris HT 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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