TROJ_BHO.LEX
ARC:7-Zip, ARC:[bccldkoinakjmmgebambiaggjobhikfg.crx]:ZIP, ARC:[setup.exe]:NSIS (Kaspersky)
Windows 2000, Windows XP, Windows Server 2003
Tipo di minaccia informatica:
Trojan
Distruttivo?:
No
Crittografato?:
In the wild::
Sì
Panoramica e descrizione
Elimina archivos para impedir la ejecución correcta de programas y aplicaciones.
Dettagli tecnici
Instalación
Crea las carpetas siguientes:
- %User Temp%\7zS1.tmp
- %User Temp%\7zS1.tmp\info@wxdownloadmanager.com
- %User Temp%\7zS1.tmp\info@wxdownloadmanager.com\content
- %System Root%\DOCUME~1
- %System Root%\DOCUME~1\Wilbert
- %User Profile%\LOCALS~1
- %User Temp%\nsc3.tmp
- %User Profile%\Application Data\wxDfast
- %Start Menu%\Programs\wxDfast
Técnica de inicio automático
Se registra como BHO para garantizar su ejecución automática cada vez que se utilice Internet Explorer mediante la introducción de las siguientes claves de registro:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Browser Helper Objects\{1B9B80A9-4477-495F-89F9-9DDA535F24E1}
Otras modificaciones del sistema
Elimina los archivos siguientes:
- %User Temp%\7zS1.tmp
- %User Temp%\nsm2.tmp
- %User Temp%\nsc3.tmp
(Nota: %User Temp% es la carpeta Temp del usuario activo, que en el caso de Windows 2000, XP y Server 2003 suele estar en C:\Documents and Settings\{nombre de usuario}\Local Settings\Temp).
)Agrega las siguientes entradas de registro como parte de la rutina de instalación:
HKEY_LOCAL_MACHINE\SOFTWARE\Google\
Chrome\Extensions\bccldkoinakjmmgebambiaggjobhikfg
HKEY_CLASSES_ROOT\bhoclass.BHO.bhoclass.BHO.1.0
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
bhoclass.BHO.bhoclass.BHO.1.0\CLSID
HKEY_CLASSES_ROOT\bhoclass.BHO.bhoclass.BHO
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
bhoclass.BHO.bhoclass.BHO\CLSID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
bhoclass.BHO.bhoclass.BHO\CurVer
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{1B9B80A9-4477-495F-89F9-9DDA535F24E1}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{1B9B80A9-4477-495F-89F9-9DDA535F24E1}\ProgID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{1B9B80A9-4477-495F-89F9-9DDA535F24E1}\VersionIndependentProgID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{1B9B80A9-4477-495F-89F9-9DDA535F24E1}\Programmable
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{1B9B80A9-4477-495F-89F9-9DDA535F24E1}\InprocServer32
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Explorer\
Browser Helper Objects
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Explorer\
Browser Helper Objects\{1B9B80A9-4477-495F-89F9-9DDA535F24E1}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{C2CF0D01-7657-48AA-98C9-AE5E64757FCC}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{C2CF0D01-7657-48AA-98C9-AE5E64757FCC}\1.0
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{C2CF0D01-7657-48AA-98C9-AE5E64757FCC}\1.0\
FLAGS
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{C2CF0D01-7657-48AA-98C9-AE5E64757FCC}\1.0\
0
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{C2CF0D01-7657-48AA-98C9-AE5E64757FCC}\1.0\
0\win32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{C2CF0D01-7657-48AA-98C9-AE5E64757FCC}\1.0\
HELPDIR
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{BBA74401-6D6F-4BBD-9F65-E8623814F3BB}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{BBA74401-6D6F-4BBD-9F65-E8623814F3BB}\ProxyStubClsid
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{BBA74401-6D6F-4BBD-9F65-E8623814F3BB}\ProxyStubClsid32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{BBA74401-6D6F-4BBD-9F65-E8623814F3BB}\TypeLib
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{D2F39980-399F-492E-8D88-5FF7CCB3B47F}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{D2F39980-399F-492E-8D88-5FF7CCB3B47F}\ProxyStubClsid
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{D2F39980-399F-492E-8D88-5FF7CCB3B47F}\ProxyStubClsid32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{D2F39980-399F-492E-8D88-5FF7CCB3B47F}\TypeLib
HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Policies\
Ext\CLSID
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
{4F4C5E11-0612-48D2-8055-987992AAC432}
Agrega las siguientes entradas de registro:
HKEY_LOCAL_MACHINE\SOFTWARE\Google\
Chrome\Extensions\bccldkoinakjmmgebambiaggjobhikfg
path = "%User Profile%\wxDfast\bccldkoinakjmmgebambiaggjobhikfg.crx"
HKEY_LOCAL_MACHINE\SOFTWARE\Google\
Chrome\Extensions\bccldkoinakjmmgebambiaggjobhikfg
version = "1.0"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{1B9B80A9-4477-495F-89F9-9DDA535F24E1}\InprocServer32
ThreadingModel = "Apartment"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Explorer\
Browser Helper Objects\{1B9B80A9-4477-495F-89F9-9DDA535F24E1}
NoExplorer = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Browser Helper Objects\{1B9B80A9-4477-495F-89F9-9DDA535F24E1}
NoExplorer = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{BBA74401-6D6F-4BBD-9F65-E8623814F3BB}\TypeLib
Version = "1.0"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{D2F39980-399F-492E-8D88-5FF7CCB3B47F}\TypeLib
Version = "1.0"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\policies\
Ext\CLSID
{1B9B80A9-4477-495F-89F9-9DDA535F24E1} = "1"
HKEY_LOCAL_MACHINE
Path = "%User Profile%\Application Data\wxDfast"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
{4F4C5E11-0612-48D2-8055-987992AAC432}
DisplayName = "wxDfast"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
{4F4C5E11-0612-48D2-8055-987992AAC432}
Publisher = "wxDfast"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
{4F4C5E11-0612-48D2-8055-987992AAC432}
URLInfoAbout = "http://{BLOCKED}loadmanager.com"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
{4F4C5E11-0612-48D2-8055-987992AAC432}
DisplayIcon = "%User Profile%\wxDfast\uninstall.exe"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
{4F4C5E11-0612-48D2-8055-987992AAC432}
UninstallString = "%User Profile%\Application Data\wxDfast"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
{4F4C5E11-0612-48D2-8055-987992AAC432}
NoModify = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
{4F4C5E11-0612-48D2-8055-987992AAC432}
NoRepair = "1"
Rutina de infiltración
Infiltra los archivos siguientes:
- %User Temp%\7zS1.tmp\info@wxdownloadmanager.com\chrome.manifest
- %User Temp%\7zS1.tmp\background.html
- %User Temp%\7zS1.tmp\content.js
- %User Temp%\7zS1.tmp\info@wxdownloadmanager.com\content\indexeddb.js
- %User Temp%\7zS1.tmp\info@wxdownloadmanager.com\content\jquery.js
- %User Temp%\7zS1.tmp\info@wxdownloadmanager.com\content\jsext.js
- %User Temp%\7zS1.tmp\info@wxdownloadmanager.com\content\lsdb.js
- %User Temp%\7zS1.tmp\info@wxdownloadmanager.com\content\prfdb.js
- %User Temp%\7zS1.tmp\info@wxdownloadmanager.com\content\sqlite.js
- %User Temp%\7zS1.tmp\settings.ini
- %User Temp%\7zS1.tmp\bccldkoinakjmmgebambiaggjobhikfg.crx
- %User Temp%\7zS1.tmp\info@wxdownloadmanager.com\install.rdf
- %User Temp%\7zS1.tmp\info@wxdownloadmanager.com\content\wx.xul
- %User Temp%\7zS1.tmp\setup.exe
- %User Temp%\7zS1.tmp\bhoclass.dll
- \settings.ini
- %Start Menu%\Programs\wxDfast\wxDfast.lnk
- %Start Menu%\Programs\wxDfast\Uninstall.lnk
- %User Profile%\wxDfast\uninstall.exe
Soluzioni
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
Cierre todas las ventanas abiertas del explorador.
Step 3
Eliminar esta clave del Registro
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_LOCAL_MACHINE\SOFTWARE\Google\Chrome\Extensions
- bccldkoinakjmmgebambiaggjobhikfg
- In HKEY_CLASSES_ROOT
- bhoclass.BHO.bhoclass.BHO.1.0
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\bhoclass.BHO.bhoclass.BHO.1.0
- CLSID
- In HKEY_CLASSES_ROOT
- bhoclass.BHO.bhoclass.BHO
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\bhoclass.BHO.bhoclass.BHO
- CLSID
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\bhoclass.BHO.bhoclass.BHO
- CurVer
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {1B9B80A9-4477-495F-89F9-9DDA535F24E1}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1B9B80A9-4477-495F-89F9-9DDA535F24E1}
- ProgID
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1B9B80A9-4477-495F-89F9-9DDA535F24E1}
- VersionIndependentProgID
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1B9B80A9-4477-495F-89F9-9DDA535F24E1}
- Programmable
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1B9B80A9-4477-495F-89F9-9DDA535F24E1}
- InprocServer32
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer
- Browser Helper Objects
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects
- {1B9B80A9-4477-495F-89F9-9DDA535F24E1}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib
- {C2CF0D01-7657-48AA-98C9-AE5E64757FCC}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{C2CF0D01-7657-48AA-98C9-AE5E64757FCC}
- 1.0
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{C2CF0D01-7657-48AA-98C9-AE5E64757FCC}\1.0
- FLAGS
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{C2CF0D01-7657-48AA-98C9-AE5E64757FCC}\1.0
- 0
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{C2CF0D01-7657-48AA-98C9-AE5E64757FCC}\1.0\0
- win32
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{C2CF0D01-7657-48AA-98C9-AE5E64757FCC}\1.0
- HELPDIR
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface
- {BBA74401-6D6F-4BBD-9F65-E8623814F3BB}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{BBA74401-6D6F-4BBD-9F65-E8623814F3BB}
- ProxyStubClsid
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{BBA74401-6D6F-4BBD-9F65-E8623814F3BB}
- ProxyStubClsid32
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{BBA74401-6D6F-4BBD-9F65-E8623814F3BB}
- TypeLib
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface
- {D2F39980-399F-492E-8D88-5FF7CCB3B47F}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{D2F39980-399F-492E-8D88-5FF7CCB3B47F}
- ProxyStubClsid
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{D2F39980-399F-492E-8D88-5FF7CCB3B47F}
- ProxyStubClsid32
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{D2F39980-399F-492E-8D88-5FF7CCB3B47F}
- TypeLib
- In HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Ext
- CLSID
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall
- {4F4C5E11-0612-48D2-8055-987992AAC432}
Step 4
Eliminar este valor del Registro
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_LOCAL_MACHINE\SOFTWARE\Google\Chrome\Extensions\bccldkoinakjmmgebambiaggjobhikfg
- path = "%User Profile%\wxDfast\bccldkoinakjmmgebambiaggjobhikfg.crx"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Google\Chrome\Extensions\bccldkoinakjmmgebambiaggjobhikfg
- version = "1.0"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1B9B80A9-4477-495F-89F9-9DDA535F24E1}\InprocServer32
- ThreadingModel = "Apartment"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{1B9B80A9-4477-495F-89F9-9DDA535F24E1}
- NoExplorer = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{1B9B80A9-4477-495F-89F9-9DDA535F24E1}
- NoExplorer = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{BBA74401-6D6F-4BBD-9F65-E8623814F3BB}\TypeLib
- Version = "1.0"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{D2F39980-399F-492E-8D88-5FF7CCB3B47F}\TypeLib
- Version = "1.0"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Ext\CLSID
- {1B9B80A9-4477-495F-89F9-9DDA535F24E1} = "1"
- In HKEY_LOCAL_MACHINE
- Path = "%User Profile%\Application Data\wxDfast"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{4F4C5E11-0612-48D2-8055-987992AAC432}
- DisplayName = "wxDfast"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{4F4C5E11-0612-48D2-8055-987992AAC432}
- Publisher = "wxDfast"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{4F4C5E11-0612-48D2-8055-987992AAC432}
- URLInfoAbout = "http://{BLOCKED}loadmanager.com"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{4F4C5E11-0612-48D2-8055-987992AAC432}
- DisplayIcon = "%User Profile%\wxDfast\uninstall.exe"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{4F4C5E11-0612-48D2-8055-987992AAC432}
- UninstallString = "%User Profile%\Application Data\wxDfast"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{4F4C5E11-0612-48D2-8055-987992AAC432}
- NoModify = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{4F4C5E11-0612-48D2-8055-987992AAC432}
- NoRepair = "1"
Step 5
Buscar y eliminar estos archivos
- %User Temp%\7zS1.tmp\info@wxdownloadmanager.com\chrome.manifest
- %User Temp%\7zS1.tmp\background.html
- %User Temp%\7zS1.tmp\content.js
- %User Temp%\7zS1.tmp\info@wxdownloadmanager.com\content\indexeddb.js
- %User Temp%\7zS1.tmp\info@wxdownloadmanager.com\content\jquery.js
- %User Temp%\7zS1.tmp\info@wxdownloadmanager.com\content\jsext.js
- %User Temp%\7zS1.tmp\info@wxdownloadmanager.com\content\lsdb.js
- %User Temp%\7zS1.tmp\info@wxdownloadmanager.com\content\prfdb.js
- %User Temp%\7zS1.tmp\info@wxdownloadmanager.com\content\sqlite.js
- %User Temp%\7zS1.tmp\settings.ini
- %User Temp%\7zS1.tmp\bccldkoinakjmmgebambiaggjobhikfg.crx
- %User Temp%\7zS1.tmp\info@wxdownloadmanager.com\install.rdf
- %User Temp%\7zS1.tmp\info@wxdownloadmanager.com\content\wx.xul
- %User Temp%\7zS1.tmp\setup.exe
- %User Temp%\7zS1.tmp\bhoclass.dll
- \settings.ini
- %Start Menu%\Programs\wxDfast\wxDfast.lnk
- %Start Menu%\Programs\wxDfast\Uninstall.lnk
- %User Profile%\wxDfast\uninstall.exe
Step 6
Buscar y eliminar estas carpetas
- %User Temp%\7zS1.tmp
- %User Temp%\7zS1.tmp\info@wxdownloadmanager.com
- %User Temp%\7zS1.tmp\info@wxdownloadmanager.com\content
- %System Root%\DOCUME~1
- %System Root%\DOCUME~1\Wilbert
- %User Profile%\LOCALS~1
- %User Temp%\nsc3.tmp
- %User Profile%\Application Data\wxDfast
- %Start Menu%\Programs\wxDfast
Step 7
Explorar el equipo con su producto de Trend Micro para eliminar los archivos detectados como TROJ_BHO.LEX 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.
Sondaggio