Ransomware Research

GonnaCry Ransomware

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

Quick facts

Ransomware Family
GonnaCry
First Seen
August 1, 2018

How GonnaCry ransomware works

File encryption patterns

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

Extensions added after encryption
.GNNCRY

Ransom note and payment demands

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

fileGNNCRY_Readme

Technical indicators

Associated executable files

The following executable files are associated with GonnaCry ransomware:

About this analysis

This GonnaCry 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 GonnaCry.

Last updated: December 30, 2025

Detection coverage

Elastio detects GonnaCry inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify GonnaCry 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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