Ransomware Research

CloudSword Ransomware

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

Quick Facts

Ransomware Family
CloudSword
First Seen
January 1, 2017

How CloudSword Ransomware Works

Ransom Note and Payment Demands

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

fileWarning警告.html

Ransom message:

notes/Warning警告.html

Note locations:

UserFolders

Technical Indicators

Associated Executable Files

The following executable files are associated with CloudSword ransomware:

  • cloudsword.exe
  • 17012127.exe
  • Windows Update.exe
  • 3.exe
  • windows update.exe

Elastio Can Help You

Don't let CloudSword ransomware take over your data

Elastio provides advanced ransomware protection and recovery solutions to keep your organization safe.

Learn MoreRequest a Demo

About This Analysis

This CloudSword ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery solutions, helping organizations defend against and recover from ransomware attacks like CloudSword.

Last updated: October 30, 2025

Recent Ransomware

Explore other threats in our database

View all ransomware