Ransomware Research

Auuahk-Ouuohk Ransomware

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

Quick facts

Ransomware Family
Auuahk-Ouuohk
First Seen
July 1, 2018

How Auuahk-Ouuohk ransomware works

File encryption patterns

Auuahk-Ouuohk modifies encrypted files using specific patterns to mark them as encrypted:

Extensions added after encryption
.RECOVERYOURFILES

Ransom note and payment demands

After encrypting files, Auuahk-Ouuohk displays ransom notes demanding payment for file recovery:

fileINSTRUCTIONS_RECOVER_FILES.txt
notes/INSTRUCTIONS_RECOVER_FILES.txt

About this analysis

This Auuahk-Ouuohk 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 Auuahk-Ouuohk.

Last updated: December 30, 2025

Detection coverage

Elastio detects Auuahk-Ouuohk inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify Auuahk-Ouuohk 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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