Ransomware Research

Digisom Ransomware

Digisom is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on May 1, 2015, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: X-files.

Quick facts

Ransomware Family
Digisom
First Seen
May 1, 2015
Known Aliases
X-files

How Digisom ransomware works

File encryption patterns

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

Extensions added after encryption
./[A-Za-z0-9]{3}\.x$/

Ransom note and payment demands

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

file/^Digisom Readme[0-9]{1}\.txt$/
notes/Digisom Readme0.txt
Location: Desktop

Technical indicators

Associated executable files

The following executable files are associated with Digisom ransomware:

About this analysis

This Digisom 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 Digisom.

Last updated: December 30, 2025

Detection coverage

Elastio detects Digisom inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify Digisom 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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