Ransomware Research

CyberSoldier Ransomware

CyberSoldier is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on September 1, 2017, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
CyberSoldier
First Seen
September 1, 2017

How CyberSoldier ransomware works

File encryption patterns

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

Extensions added after encryption
.CyberSoldiersST

Ransom note and payment demands

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

message
notes/note.txt
Location: Login

Technical indicators

Associated executable files

The following executable files are associated with CyberSoldier ransomware:

About this analysis

This CyberSoldier 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 CyberSoldier.

Last updated: December 30, 2025

Detection coverage

Elastio detects CyberSoldier inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify CyberSoldier 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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