Ransomware Research

Such_Crypt Ransomware

Such_Crypt is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2020, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: SuchCrypt, Mwahahah.

Quick facts

Ransomware Family
Such_Crypt
First Seen
June 1, 2020
Known Aliases
SuchCryptMwahahah

How Such_Crypt ransomware works

File encryption patterns

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

Extensions added after encryption
.mwahahah

Technical indicators

Associated executable files

The following executable files are associated with Such_Crypt ransomware:

About this analysis

This Such_Crypt 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 Such_Crypt.

Last updated: December 30, 2025

Detection coverage

Elastio detects Such_Crypt inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify Such_Crypt 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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