Análisis realizado por : Mc Justine De Guzman   
 Plataforma:

Windows

 Riesgo general:
 Potencial de destrucción:
 Potencial de distribución:
 Infección divulgada:
 Revelación de la información:
Bajo
Medio
High
Crítico

  • Tipo de malware
    Potentially Unwanted Application

  • Destructivo?
    No

  • Cifrado
    No

  • In the Wild:
    Sí

  Resumen y descripción

Canal de infección Descargado de Internet

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

  Detalles técnicos

Tamaño del archivo 5,039,424 bytes
Tipo de archivo EXE
Residente en memoria No
Fecha de recepción de las muestras iniciales 15 de octubre de 2021

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 las carpetas siguientes:

  • %Program Files%\WebPhone_Service
  • %Program Files%\WebPhone_Service\.install4j
  • %User Profile%\.oracle_jre_usage

(Nota: %Program Files% es la carpeta Archivos de programa predeterminada, que suele estar en C:\Archivos de programa).

. %User Profile% es la carpeta de perfil del usuario activo, que en el caso de Windows 98 y ME suele estar en C:\Windows\Profiles\{nombre de usuario}, en el caso de Windows NT en C:\WINNT\Profiles\{nombre de usuario}, en el caso de Windows 2000(32-bit), XP y Server 2003(32-bit) en C:\Documents and Settings\{nombre de usuario} y en el caso de Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) y 10(64-bit) en C:\Users\{nombre de usuario}).

)

Infiltra los archivos siguientes:

  • %User Temp%\i4j_nlog_2
  • %User Profile%\.oracle_jre_usage\f9b9f6b9014e1b80.timestamp
  • %Program Files%\WebPhone_Service\WPIcon.ico
  • %Program Files%\WebPhone_Service\WebPhone_Service.exe
  • %Program Files%\WebPhone_Service\cert.pem
  • %Program Files%\WebPhone_Service\certversion.dat
  • %Program Files%\WebPhone_Service\checkjv.bat
  • %Program Files%\WebPhone_Service\checkjv2.bat
  • %Program Files%\WebPhone_Service\content\native\mediaench.dll
  • %Program Files%\WebPhone_Service\content\native\mediaench2x64.dll
  • %Program Files%\WebPhone_Service\content\native\mediaenchx64.dll
  • %Program Files%\WebPhone_Service\content\native\opx32.dll
  • %Program Files%\WebPhone_Service\content\native\opx64.dll
  • %Program Files%\WebPhone_Service\content\native\ring.wav
  • %Program Files%\WebPhone_Service\content\native\wphoneapp.jar
  • %Program Files%\WebPhone_Service\key.pem
  • %Program Files%\WebPhone_Service\libeay32.dll
  • %Program Files%\WebPhone_Service\license_agrement.txt
  • %Program Files%\WebPhone_Service\micfg.bat
  • %Program Files%\WebPhone_Service\i4j324008600730250760.tmp
  • %Program Files%\WebPhone_Service\mwphone_ns.dat
  • %Program Files%\WebPhone_Service\root.pem
  • %Program Files%\WebPhone_Service\softphonedef.ini
  • %Program Files%\WebPhone_Service\ssleay32.dll
  • %Program Files%\WebPhone_Service\uninstall.exe
  • %Program Files%\WebPhone_Service\unzip.exe
  • %Program Files%\WebPhone_Service\what.txt
  • %Program Files%\WebPhone_Service\wpcert.cer
  • %Program Files%\WebPhone_Service\.install4j\inst_jre.cfg
  • %Program Files%\WebPhone_Service\.install4j\i4jruntime.jar
  • %Program Files%\WebPhone_Service\.install4j\MessagesDefault
  • %Program Files%\WebPhone_Service\.install4j\i4jparams.conf
  • %Program Files%\WebPhone_Service\.install4j\stats.properties
  • %Program Files%\WebPhone_Service\.install4j\user.jar
  • %Program Files%\WebPhone_Service\.install4j\i4jdel.exe
  • %Program Files%\WebPhone_Service\.install4j\i4jinst.dll
  • %Program Files%\WebPhone_Service\.install4j\i4j_extf_0_1jcig0z.utf8
  • %Program Files%\WebPhone_Service\.install4j\i4j_extf_1_1jcig0z_1rthfh6.ico
  • %Program Files%\WebPhone_Service\.install4j\unicows.dll
  • %Program Files%\WebPhone_Service\.install4j\_shfoldr.dll
  • %Program Files%\WebPhone_Service\.install4j\response.varfile
  • %Program Files%\WebPhone_Service\.install4j\install.prop
  • %Program Files%\WebPhone_Service\.install4j\autoUninstall.0
  • %Program Files%\WebPhone_Service\.install4j\files.log
  • %Program Files%\WebPhone_Service\.install4j\installation.log
  • %User Temp%\i4jdel0.exe
  • %User Temp%\i4j5676818038135158873.tmp

(Nota: %User Temp% es la carpeta Temp del usuario activo, que en el caso de Windows 2000(32-bit), XP y Server 2003(32-bit) suele estar en C:\Documents and Settings\{nombre de usuario}\Local Settings\Temp y en el case de Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) y 10(64-bit) en C:\Users\{nombre de usuario}\AppData\Local\Temp).

. %User Profile% es la carpeta de perfil del usuario activo, que en el caso de Windows 98 y ME suele estar en C:\Windows\Profiles\{nombre de usuario}, en el caso de Windows NT en C:\WINNT\Profiles\{nombre de usuario}, en el caso de Windows 2000(32-bit), XP y Server 2003(32-bit) en C:\Documents and Settings\{nombre de usuario} y en el caso de Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) y 10(64-bit) en C:\Users\{nombre de usuario}).

. %Program Files% es la carpeta Archivos de programa predeterminada, que suele estar en C:\Archivos de programa).

)

Agrega los procesos siguientes:

  • %System%\net.exe stop webphone
  • %System%\net1 stop webphone
  • %System%\taskkill.exe" /IM WebPhone_Service.exe /F
  • %System%\taskkill.exe" /IM "java.exe " /F
  • %System%\taskkill.exe" /IM "javaw.exe " /F
  • %System%\taskkill.exe" /IM jqs.exe /F
  • %System%\taskkill.exe" /IM "jp2launcher.exe " /F
  • netsh advfirewall firewall delete rule name=WebPhone_Service
  • netsh advfirewall firewall delete rule name=WebPhone_ServiceTCP1
  • netsh advfirewall firewall delete rule name=WebPhone_ServiceTCP2
  • netsh advfirewall firewall delete rule name=WebPhone_ServiceTCP3
  • netsh advfirewall firewall delete rule name=WebPhone_ServiceUDP1
  • netsh advfirewall firewall delete rule name=WebPhone_ServiceUDP2
  • netsh advfirewall firewall delete rule name=WebPhone_ServiceUDP3
  • netsh advfirewall firewall delete rule name=WebPhone_ServiceJAVAU
  • netsh advfirewall firewall delete rule name=WebPhone_ServiceJAVAS
  • netsh advfirewall firewall delete rule name=WebPhone_ServiceJAVALB0
  • netsh advfirewall firewall delete rule name=WebPhone_ServiceJAVALB1
  • netsh advfirewall firewall delete rule name=WebPhone_ServiceJAVAB2
  • netsh advfirewall firewall delete rule name=WebPhone_ServiceJAVALV1
  • netsh advfirewall firewall delete rule name=WebPhone_ServiceJAVAV2
  • netsh advfirewall firewall delete rule name=WebPhone_ServiceJAVALV5
  • netsh advfirewall firewall delete rule name=WebPhone_ServiceJAVAV5
  • netsh advfirewall firewall delete rule name=WebPhone_ServiceJAVAV8
  • %System%\cmd.exe /D /C "%User Temp%\i4j{random characters}.bat" -> used to terminate the processes and services

(Nota: %System% es la carpeta del sistema de Windows, que en el caso de Windows 98 y ME suele estar en C:\Windows\System, en el caso de Windows NT y 2000 en C:\WINNT\System32 y en el caso de Windows 2000(32-bit), XP, Server 2003(32-bit), Vista, 7, 8, 8.1, 2008(64-bit), 2012(64bit) y 10(64-bit) en C:\Windows\System32).

. %User Temp% es la carpeta Temp del usuario activo, que en el caso de Windows 2000(32-bit), XP y Server 2003(32-bit) suele estar en C:\Documents and Settings\{nombre de usuario}\Local Settings\Temp y en el case de Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) y 10(64-bit) en C:\Users\{nombre de usuario}\AppData\Local\Temp).

)

Otras modificaciones del sistema

Agrega las siguientes entradas de registro:

HKEY_CURRENT_USER\Software\ej-technologies\
exe4j\pids
{Malware full path} = 1664

HKEY_LOCAL_MACHINE\SOFTWARE\ej-technologies\
exe4j\priority
Webphone = 32

HKEY_LOCAL_MACHINE\SOFTWARE\ej-technologies\
install4j\installations
allinstdirsWebPhone_Service = %Program Files%\WebPhone_Service

HKEY_CURRENT_USER\Software\ej-technologies\
install4j\installations
allinstdirsWebPhone_Service = %Program Files%\WebPhone_Service

HKEY_LOCAL_MACHINE\SOFTWARE\ej-technologies\
install4j\installations
instdirWebPhone_Service = %Program Files%\WebPhone_Service

HKEY_CURRENT_USER\Software\ej-technologies\
install4j\installations
instdirWebPhone_Service = %Program Files%\WebPhone_Service

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
WebPhone_Service
DisplayName = WebPhone Service Plugin 3.4.21066.155

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
WebPhone_Service
DisplayIcon = %Program Files%\WebPhone_Service\.install4j\i4j_extf_1_1jcig0z_1rthfh6.ico

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
WebPhone_Service
UninstallString = %Program Files%\WebPhone_Service\uninstall.exe

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
WebPhone_Service
Publisher = WebSIPPhone

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
WebPhone_Service
URLInfoAbout = www.m{BLOCKED}ip.com

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
WebPhone_Service
InstallLocation = %Program Files%\WebPhone_Service

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
WebPhone_Service
DisplayVersion = 3.4.21066.155

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
WebPhone_Service
VersionMajor = 3

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
WebPhone_Servic
VersionMinor = 4

Otros detalles

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

HKEY_CURRENT_USER\Software\ej-technologies

HKEY_CURRENT_USER\Software\ej-technologies\
exe4j

HKEY_CURRENT_USER\Software\ej-technologies\
exe4j\pids

HKEY_LOCAL_MACHINE\SOFTWARE\ej-technologies

HKEY_LOCAL_MACHINE\SOFTWARE\ej-technologies\
exe4j

HKEY_LOCAL_MACHINE\SOFTWARE\ej-technologies\
exe4j\priority

HKEY_LOCAL_MACHINE\SOFTWARE\ej-technologies\
install4j

HKEY_LOCAL_MACHINE\SOFTWARE\ej-technologies\
install4j\installations

HKEY_CURRENT_USER\Software\ej-technologies\
install4j

HKEY_CURRENT_USER\Software\ej-technologies\
install4j\installations

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
WebPhone_Service

Hace lo siguiente:

  • It accepts the following parameters:
    • -q -> executes unattended mode
    • -console -> If the installer is executed in unattended mode and -console is passed as a second parameter, status messages will be printed on the console from which the installer was invoked.
    • -splash -> Only valid if -q is set. Instead of being completely quiet in unattended installation mode, a small window with a progress bar and the specified title will be shown to inform the user about the progress of the installer application
    • -c -> executes in console mode
    • -manual -> executes GUI mode
    • -nocheck
  • It creates a semaphore to ensure that only one of its copies runs at any one time:
    • {Malware full path}
  • It creates a batch file at %User Temp%\i4j{random characters}.bat per process or service to be terminated

(Nota: %User Temp% es la carpeta Temp del usuario activo, que en el caso de Windows 2000(32-bit), XP y Server 2003(32-bit) suele estar en C:\Documents and Settings\{nombre de usuario}\Local Settings\Temp y en el case de Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) y 10(64-bit) en C:\Users\{nombre de usuario}\AppData\Local\Temp).

)

  Soluciones

Motor de exploración mínimo 9.800
Archivo de patrones de SSAPI: 2.451.00
Fecha de publicación del patrón SSAPI 01 de octubre de 2021

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

Reiniciar en modo seguro

[ aprenda más ]

Step 4

Desactivar este servicio de malware

[ aprenda más ]
    • Service name: Webphone
    • Imagepath: %Program Files%\WebPhone_Service\WebPhone_Service.exe

Step 5

Eliminar este valor del Registro

[ aprenda más ]

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\ej-technologies\exe4j\pids
    • {Malware full path} = 1664
  • In HKEY_LOCAL_MACHINE\SOFTWARE\ej-technologies\exe4j\priority
    • Webphone = 32
  • In HKEY_LOCAL_MACHINE\SOFTWARE\ej-technologies\install4j\installations
    • allinstdirsWebPhone_Service = %Program Files%\WebPhone_Service
  • In HKEY_CURRENT_USER\Software\ej-technologies\install4j\installations
    • allinstdirsWebPhone_Service = %Program Files%\WebPhone_Service
  • In HKEY_LOCAL_MACHINE\SOFTWARE\ej-technologies\install4j\installations
    • instdirWebPhone_Service = %Program Files%\WebPhone_Service
  • In HKEY_CURRENT_USER\Software\ej-technologies\install4j\installations
    • instdirWebPhone_Service = %Program Files%\WebPhone_Service
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\WebPhone_Service
    • DisplayName = WebPhone Service Plugin 3.4.21066.155
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\WebPhone_Service
    • DisplayIcon = %Program Files%\WebPhone_Service\.install4j\i4j_extf_1_1jcig0z_1rthfh6.ico
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\WebPhone_Service
    • UninstallString = %Program Files%\WebPhone_Service\uninstall.exe
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\WebPhone_Service
    • Publisher = WebSIPPhone
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\WebPhone_Service
    • URLInfoAbout = www.mizu-voip.com
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\WebPhone_Service
    • InstallLocation = %Program Files%\WebPhone_Service
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\WebPhone_Service
    • DisplayVersion = 3.4.21066.155
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\WebPhone_Service
    • VersionMajor = 3
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\WebPhone_Servic
    • VersionMinor = 4

Step 6

Eliminar esta clave del Registro

[ aprenda más ]

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\ej-technologies
    • "" = ""
  • In HKEY_CURRENT_USER\Software\ej-technologies\exe4j
    • "" = ""
  • In HKEY_CURRENT_USER\Software\ej-technologies\exe4j\pids
    • "" = ""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\ej-technologies
    • "" = ""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\ej-technologies\exe4j
    • "" = ""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\ej-technologies\exe4j\priority
    • "" = ""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\ej-technologies\install4j
    • "" = ""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\ej-technologies\install4j\installations
    • "" = ""
  • In HKEY_CURRENT_USER\Software\ej-technologies\install4j
    • "" = ""
  • In HKEY_CURRENT_USER\Software\ej-technologies\install4j\installations
    • "" = ""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\WebPhone_Service
    • "" = ""

Step 7

Buscar y eliminar este archivo

[ aprenda más ]
Puede que algunos de los archivos del componente estén ocultos. Asegúrese de que tiene activada la casilla Buscar archivos y carpetas ocultos en la opción Más opciones avanzadas para que el resultado de la búsqueda incluya todos los archivos y carpetas ocultos.
  • %User Temp%\i4j_nlog_2
  • %User Profile%\.oracle_jre_usage\f9b9f6b9014e1b80.timestamp
  • %Program Files%\WebPhone_Service\WPIcon.ico
  • %Program Files%\WebPhone_Service\WebPhone_Service.exe
  • %Program Files%\WebPhone_Service\cert.pem
  • %Program Files%\WebPhone_Service\certversion.dat
  • %Program Files%\WebPhone_Service\checkjv.bat
  • %Program Files%\WebPhone_Service\checkjv2.bat
  • %Program Files%\WebPhone_Service\content\native\mediaench.dll
  • %Program Files%\WebPhone_Service\content\native\mediaench2x64.dll
  • %Program Files%\WebPhone_Service\content\native\mediaenchx64.dll
  • %Program Files%\WebPhone_Service\content\native\opx32.dll
  • %Program Files%\WebPhone_Service\content\native\opx64.dll
  • %Program Files%\WebPhone_Service\content\native\ring.wav
  • %Program Files%\WebPhone_Service\content\native\wphoneapp.jar
  • %Program Files%\WebPhone_Service\key.pem
  • %Program Files%\WebPhone_Service\libeay32.dll
  • %Program Files%\WebPhone_Service\license_agrement.txt
  • %Program Files%\WebPhone_Service\micfg.bat
  • %Program Files%\WebPhone_Service\i4j324008600730250760.tmp
  • %Program Files%\WebPhone_Service\mwphone_ns.dat
  • %Program Files%\WebPhone_Service\root.pem
  • %Program Files%\WebPhone_Service\softphonedef.ini
  • %Program Files%\WebPhone_Service\ssleay32.dll
  • %Program Files%\WebPhone_Service\uninstall.exe
  • %Program Files%\WebPhone_Service\unzip.exe
  • %Program Files%\WebPhone_Service\what.txt
  • %Program Files%\WebPhone_Service\wpcert.cer
  • %Program Files%\WebPhone_Service\.install4j\inst_jre.cfg
  • %Program Files%\WebPhone_Service\.install4j\i4jruntime.jar
  • %Program Files%\WebPhone_Service\.install4j\MessagesDefault
  • %Program Files%\WebPhone_Service\.install4j\i4jparams.conf
  • %Program Files%\WebPhone_Service\.install4j\stats.properties
  • %Program Files%\WebPhone_Service\.install4j\user.jar
  • %Program Files%\WebPhone_Service\.install4j\i4jdel.exe
  • %Program Files%\WebPhone_Service\.install4j\i4jinst.dll
  • %Program Files%\WebPhone_Service\.install4j\i4j_extf_0_1jcig0z.utf8
  • %Program Files%\WebPhone_Service\.install4j\i4j_extf_1_1jcig0z_1rthfh6.ico
  • %Program Files%\WebPhone_Service\.install4j\unicows.dll
  • %Program Files%\WebPhone_Service\.install4j\_shfoldr.dll
  • %Program Files%\WebPhone_Service\.install4j\response.varfile
  • %Program Files%\WebPhone_Service\.install4j\install.prop
  • %Program Files%\WebPhone_Service\.install4j\autoUninstall.0
  • %Program Files%\WebPhone_Service\.install4j\files.log
  • %Program Files%\WebPhone_Service\.install4j\installation.log
  • %User Temp%\i4jdel0.exe
  • %User Temp%\i4j5676818038135158873.tmp

Step 8

Buscar y eliminar esta carpeta

[ aprenda más ]
Asegúrese de que tiene activada la casilla Buscar archivos y carpetas ocultos en la opción Más opciones avanzadas para que el resultado de la búsqueda incluya todas las carpetas ocultas.
  • %Program Files%\WebPhone_Service
  • %Program Files%\WebPhone_Service\.install4j
  • %User Profile%\.oracle_jre_usage

Step 9

Reinicie en modo normal y explore el equipo con su producto de Trend Micro para buscar los archivos identificados como PUA.Win32.WebPhone.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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