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

Targeted Files

Requires C&C The same marker in ABCLocker

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

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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: July 30, 2025

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