Ransomware Research

CryFile Ransomware

CryFile is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2016, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
CryFile
First Seen
June 1, 2016

How CryFile ransomware works

File encryption patterns

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

Extensions added after encryption
.criptiko.criptoko.criptokod.aga

Ransom note and payment demands

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

fileSHTODELATVAM.txt
notes/SHTODELATVAM.txt
fileInstructionaga.txt
notes/Instructionaga.txt
Location: EveryFolder

About this analysis

This CryFile 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 CryFile.

Last updated: December 30, 2025

Detection coverage

Elastio detects CryFile inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify CryFile 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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