Ransomware Research

Velso Ransomware

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

Quick facts

Ransomware Family
Velso
First Seen
January 1, 2018

How Velso ransomware works

File encryption patterns

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

Extensions added after encryption
.velso.david

Ransom note and payment demands

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

fileget_my_files.txt
notes/get_my_files.txt
Location: EveryFolder

Technical indicators

Associated executable files

The following executable files are associated with Velso ransomware:

About this analysis

This Velso 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 Velso.

Last updated: December 30, 2025

Detection coverage

Elastio detects Velso inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify Velso 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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What is Velso Ransomware? | Elastio