TrojanSpy.Win64.CRYPTWOFOUR.THGAHBE

It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Führt Befehle eines externen, böswilligen Benutzers aus, wodurch das betroffene System gefährdet wird.

Sammelt bestimmte Informationen auf dem betroffenen Computer.

Übertragungsdetails

It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Installation

Schleust die folgenden Dateien ein:

• %Temp%\test.txt → Contains the results of arbitrary command execution.
• %Temp%\tmp.bat → This file is created when the command execution method is set to 1.

(Hinweis: %Temp% ist der Windows Ordner für temporäre Dateien, normalerweise C:\Windows\Temp oder C:\WINNT\Temp.)

Fügt die folgenden Prozesse hinzu:

• cmd /c %Temp%\tmp.bat → This process is created when the command execution method is set to 1.

(Hinweis: %Temp% ist der Windows Ordner für temporäre Dateien, normalerweise C:\Windows\Temp oder C:\WINNT\Temp.)

Backdoor-Routine

Führt die folgenden Befehle eines externen, böswilligen Benutzers aus:

• It executes arbitrary commands using the following method:
  • 1 → Batch file execution
  • Others → Direct Execution via Shell

Datendiebstahl

Sammelt die folgenden Informationen auf dem betroffenen Computer:

• Computer Name
• Username

Andere Details

Es macht Folgendes:

• It will only proceed to its malicious routine if it is ran as a service.
• Captures all keyboard input.
• Captures clipboard data text changes.
• It generates a unique file name for executing victim-based arbitrary commands:
  • {ComputerName}_{Username}_Test.txt
• It connects to the specified URL to upload the %Temp%\test.txt file:
  • https://www.{BLOCKED}apis.com/upload/drive/v3/files?uploadType=multipart
• After command execution, the system reconnects to the specified URL to remove the file associated with the victim:
  • https://www.{BLOCKED}apis.com/drive/v3/files/{file_id}
• It connects to the specified URL to search for the victim ID. This is done to retrieve the commands to be executed:
  • https://www.{BLOCKED}apis.com/drive/v3/files?q=name='{Computer Name}_{Username}_Test.txt'