Ransomware Research

Anubi NotBTCWare Ransomware

Anubi NotBTCWare is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on October 1, 2017, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
Anubi NotBTCWare
First Seen
October 1, 2017

How Anubi NotBTCWare ransomware works

File encryption patterns

Anubi NotBTCWare modifies encrypted files using specific patterns to mark them as encrypted:

Extensions added after encryption
.anubi

Ransom note and payment demands

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

file__READ_ME__.txt
notes/__READ_ME__.txt
Location: EveryFolder

About this analysis

This Anubi NotBTCWare 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 Anubi NotBTCWare.

Last updated: December 30, 2025

Detection coverage

Elastio detects Anubi NotBTCWare inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify Anubi NotBTCWare 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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