Ransomware Research

CookiesHelper Ransomware

CookiesHelper is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on January 1, 2024, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
CookiesHelper
First Seen
January 1, 2024

How CookiesHelper ransomware works

File encryption patterns

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

Extensions added after encryption
.cookieshelper

Ransom note and payment demands

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

fileFILE RECOVERY.txt
notes/FILE RECOVERY.txt
Location: EveryFolder

Technical indicators

Associated executable files

The following executable files are associated with CookiesHelper ransomware:

About this analysis

This CookiesHelper 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 CookiesHelper.

Last updated: December 30, 2025

Detection coverage

Elastio detects CookiesHelper inside your data and backups.

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