Ransomware Research

BananaCrypt Ransomware

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

Quick facts

Ransomware Family
BananaCrypt
First Seen
February 1, 2018

How BananaCrypt ransomware works

File encryption patterns

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

Extensions added after encryption
.bananaCrypt

Ransom note and payment demands

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

fileREADME.TXT
notes/README.TXT
Location: Desktop

About this analysis

This BananaCrypt 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 BananaCrypt.

Last updated: December 30, 2025

Detection coverage

Elastio detects BananaCrypt inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify BananaCrypt 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.

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