TROJ_DNSCHANGER.USAV0109
Spyware:Win32/CnsMin, Spyware:Win32/CnsMin, Spyware:Win32/CnsMin, Spyware:Win32/CnsMin, Spyware:Win3 (Microsoft); [8.nsis]:CnsMin., [9.nsis]:Generic PUP.z., [10.nsis]:CnsMin., [13.nsis]:Generic PUP.z., [14.nsis]:Cn (McAfee); PAK:UPX, ARC:NSIS, [CNS1.exe]:Trojan.Win32.DNSChanger.gpg, ARC:[$R10]:CAB, ARC:[$R10]:CAB, PAK:[$R10 (Kaspersky); Trojan.Win32.Generic!BT, 3721 Chinese Keywords (CNSMin), 3721 Chinese Keywords (CNSMin), 3721 Chines (Sunbelt); Adware.CDN (FSecure)
Windows 2000, Windows XP, Windows Server 2003
Threat Type:
Trojan
Destructiveness:
No
Encrypted:
In the wild::
Yes
OVERVIEW
Elimina archivos para impedir la ejecución correcta de programas y aplicaciones.
TECHNICAL DETAILS
Instalación
Crea las carpetas siguientes:
- %User Temp%\nsj3.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).
)Otras modificaciones del sistema
Elimina los archivos siguientes:
- %User Temp%\nst1.tmp
- %User Temp%\nsj3.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_CURRENT_USER\Software\3721\
CnsMin
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
VBScript\OLEScript
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
VBS\OLEScript
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{B54F3741-5B07-11cf-A4B0-00AA004A55E8}\OLEScript
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
VBScript Author\OLEScript
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
VBS Author\OLEScript
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{B54F3742-5B07-11cf-A4B0-00AA004A55E8}\OLEScript
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
VBScript.Encode\OLEScript
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{B54F3743-5B07-11cf-A4B0-00AA004A55E8}\OLEScript
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
VBScript.RegExp\OLEScript
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{3F4DACA4-160D-11D2-A8E9-00104B365C9F}\OLEScript
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JScript\OLEScript
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
LiveScript\OLEScript
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript\OLEScript
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript1.1\OLEScript
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript1.2\OLEScript
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript1.3\OLEScript
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
ECMAScript\OLEScript
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}\OLEScript
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JScript Author\OLEScript
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
LiveScript Author\OLEScript
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript Author\OLEScript
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript1.1 Author\OLEScript
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript1.2 Author\OLEScript
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}\OLEScript
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JScript.Encode\OLEScript
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}\OLEScript
Agrega las siguientes entradas de registro:
HKEY_CURRENT_USER\Software\3721\
CnsMin
IIS = "&fb=0&fc=0&fd=0&fe=0&fg=0&fh=0&fi=0&fj=0&fa=0&fu="
HKEY_CLASSES_ROOT
VBScript = "VB Script Language"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
VBScript
CLSID = "{B54F3741-5B07-11cf-A4B0-00AA004A55E8}"
HKEY_CLASSES_ROOT
VBS = "VB Script Language"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
VBS
CLSID = "{B54F3741-5B07-11cf-A4B0-00AA004A55E8}"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID
{B54F3741-5B07-11cf-A4B0-00AA004A55E8} = "VB Script Language"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{B54F3741-5B07-11cf-A4B0-00AA004A55E8}
ProgID = "VBScript"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{B54F3741-5B07-11cf-A4B0-00AA004A55E8}
InprocServer32 = "%System%\vbscript.dll"
HKEY_CLASSES_ROOT
VBScript Author = "VB Script Language Authoring"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
VBScript Author
CLSID = "{B54F3742-5B07-11cf-A4B0-00AA004A55E8}"
HKEY_CLASSES_ROOT
VBS Author = "VB Script Language Authoring"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
VBS Author
CLSID = "{B54F3742-5B07-11cf-A4B0-00AA004A55E8}"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID
{B54F3742-5B07-11cf-A4B0-00AA004A55E8} = "VB Script Language Authoring"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{B54F3742-5B07-11cf-A4B0-00AA004A55E8}
ProgID = "VBScript Author"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{B54F3742-5B07-11cf-A4B0-00AA004A55E8}
InprocServer32 = "%System%\vbscript.dll"
HKEY_CLASSES_ROOT
VBScript.Encode = "VBScript Language Encoding"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
VBScript.Encode
CLSID = "{B54F3743-5B07-11cf-A4B0-00AA004A55E8}"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID
{B54F3743-5B07-11cf-A4B0-00AA004A55E8} = "VBScript Language Encoding"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{B54F3743-5B07-11cf-A4B0-00AA004A55E8}
ProgID = "VBScript.Encode"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{B54F3743-5B07-11cf-A4B0-00AA004A55E8}
InprocServer32 = "%System%\vbscript.dll"
HKEY_CLASSES_ROOT
VBScript.RegExp = "VBScript Regular Expression"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
VBScript.RegExp
CLSID = "{3F4DACA4-160D-11D2-A8E9-00104B365C9F}"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID
{3F4DACA4-160D-11D2-A8E9-00104B365C9F} = "VBScript Regular Expression"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{3F4DACA4-160D-11D2-A8E9-00104B365C9F}
ProgID = "VBScript.RegExp"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{3F4DACA4-160D-11D2-A8E9-00104B365C9F}
InprocServer32 = "%System%\vbscript.dll"
HKEY_CLASSES_ROOT
JScript = "JScript Language"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JScript
CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"
HKEY_CLASSES_ROOT
LiveScript = "JScript Language"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
LiveScript
CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"
HKEY_CLASSES_ROOT
JavaScript = "JScript Language"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript
CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"
HKEY_CLASSES_ROOT
JavaScript1.1 = "JScript Language"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript1.1
CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"
HKEY_CLASSES_ROOT
JavaScript1.2 = "JScript Language"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript1.2
CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"
HKEY_CLASSES_ROOT
JavaScript1.3 = "JScript Language"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript1.3
CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"
HKEY_CLASSES_ROOT
ECMAScript = "JScript Language"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
ECMAScript
CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID
{f414c260-6ac0-11cf-b6d1-00aa00bbbb58} = "JScript Language"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}
ProgID = "JScript"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}
InprocServer32 = "%System%\jscript.dll"
HKEY_CLASSES_ROOT
JScript Author = "JScript Language Authoring"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JScript Author
CLSID = "{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}"
HKEY_CLASSES_ROOT
LiveScript Author = "JScript Language Authoring"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
LiveScript Author
CLSID = "{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}"
HKEY_CLASSES_ROOT
JavaScript Author = "JScript Language Authoring"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript Author
CLSID = "{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}"
HKEY_CLASSES_ROOT
JavaScript1.1 Author = "JScript Language Authoring"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript1.1 Author
CLSID = "{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}"
HKEY_CLASSES_ROOT
JavaScript1.2 Author = "JScript Language Authoring"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript1.2 Author
CLSID = "{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID
{f414c261-6ac0-11cf-b6d1-00aa00bbbb58} = "JScript Language Authoring"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}
ProgID = "JScript Author"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}
InprocServer32 = "%System%\jscript.dll"
HKEY_CLASSES_ROOT
JScript.Encode = "JScript Language Encoding"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JScript.Encode
CLSID = "{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID
{f414c262-6ac0-11cf-b6d1-00aa00bbbb58} = "JScript Language Encoding"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}
ProgID = "JScript.Encode"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}
InprocServer32 = "%System%\jscript.dll"
Modifica las siguientes entradas de registro:
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{B54F3741-5B07-11cf-A4B0-00AA004A55E8}\InprocServer32
ThreadingModel = "Both"
(Note: The default value data of the said registry entry is Both.)
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{B54F3742-5B07-11cf-A4B0-00AA004A55E8}\InprocServer32
ThreadingModel = "Both"
(Note: The default value data of the said registry entry is Both.)
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{B54F3743-5B07-11cf-A4B0-00AA004A55E8}\InprocServer32
ThreadingModel = "Both"
(Note: The default value data of the said registry entry is Both.)
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{3F4DACA4-160D-11D2-A8E9-00104B365C9F}\InprocServer32
ThreadingModel = "Apartment"
(Note: The default value data of the said registry entry is Apartment.)
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{3F4DACA0-160D-11D2-A8E9-00104B365C9F}\TypeLib
Version = "1.0"
(Note: The default value data of the said registry entry is 5.5.)
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{3F4DACA1-160D-11D2-A8E9-00104B365C9F}\TypeLib
Version = "1.0"
(Note: The default value data of the said registry entry is 5.5.)
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{3F4DACA2-160D-11D2-A8E9-00104B365C9F}\TypeLib
Version = "1.0"
(Note: The default value data of the said registry entry is 5.5.)
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{3F4DACA0-160D-11D2-A8E9-00104B365C9F}\TypeLib
Version = "5.5"
(Note: The default value data of the said registry entry is 5.5.)
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{3F4DACA1-160D-11D2-A8E9-00104B365C9F}\TypeLib
Version = "5.5"
(Note: The default value data of the said registry entry is 5.5.)
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{3F4DACA2-160D-11D2-A8E9-00104B365C9F}\TypeLib
Version = "5.5"
(Note: The default value data of the said registry entry is 5.5.)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Active Setup\Installed Components\{4f645220-306d-11d2-995d-00c04f98bbc9}
IsInstalled = "1"
(Note: The default value data of the said registry entry is 1.)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Active Setup\Installed Components\{4f645220-306d-11d2-995d-00c04f98bbc9}
Version = "5,6,0,8820"
(Note: The default value data of the said registry entry is 5,6,0,8820.)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Active Setup\Installed Components\{4f645220-306d-11d2-995d-00c04f98bbc9}
Locale = "EN"
(Note: The default value data of the said registry entry is EN.)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Active Setup\Installed Components\{4f645220-306d-11d2-995d-00c04f98bbc9}
ComponentID = "MSVBScript"
(Note: The default value data of the said registry entry is MSVBScript.)
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}\InprocServer32
ThreadingModel = "Both"
(Note: The default value data of the said registry entry is Both.)
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}\InprocServer32
ThreadingModel = "Both"
(Note: The default value data of the said registry entry is Both.)
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}\InprocServer32
ThreadingModel = "Both"
(Note: The default value data of the said registry entry is Both.)
Elimina las siguientes claves de registro:
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
VBScript\CLSID
HKEY_CLASSES_ROOT\VBScript
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
VBS\CLSID
HKEY_CLASSES_ROOT\VBS
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{B54F3741-5B07-11cf-A4B0-00AA004A55E8}\ProgID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{B54F3741-5B07-11cf-A4B0-00AA004A55E8}\Implemented Categories
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{B54F3741-5B07-11cf-A4B0-00AA004A55E8}\InprocServer32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{B54F3741-5B07-11cf-A4B0-00AA004A55E8}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
VBScript Author\CLSID
HKEY_CLASSES_ROOT\VBScript Author
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
VBS Author\CLSID
HKEY_CLASSES_ROOT\VBS Author
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{B54F3742-5B07-11cf-A4B0-00AA004A55E8}\ProgID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{B54F3742-5B07-11cf-A4B0-00AA004A55E8}\Implemented Categories
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{B54F3742-5B07-11cf-A4B0-00AA004A55E8}\InprocServer32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{B54F3742-5B07-11cf-A4B0-00AA004A55E8}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
VBScript.Encode\CLSID
HKEY_CLASSES_ROOT\VBScript.Encode
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{B54F3743-5B07-11cf-A4B0-00AA004A55E8}\ProgID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{B54F3743-5B07-11cf-A4B0-00AA004A55E8}\Implemented Categories
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{B54F3743-5B07-11cf-A4B0-00AA004A55E8}\InprocServer32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{B54F3743-5B07-11cf-A4B0-00AA004A55E8}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
VBScript.RegExp\CLSID
HKEY_CLASSES_ROOT\VBScript.RegExp
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{3F4DACA4-160D-11D2-A8E9-00104B365C9F}\ProgID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{3F4DACA4-160D-11D2-A8E9-00104B365C9F}\TypeLib
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{3F4DACA4-160D-11D2-A8E9-00104B365C9F}\Version
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{3F4DACA4-160D-11D2-A8E9-00104B365C9F}\InprocServer32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{3F4DACA4-160D-11D2-A8E9-00104B365C9F}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JScript\CLSID
HKEY_CLASSES_ROOT\JScript
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
LiveScript\CLSID
HKEY_CLASSES_ROOT\LiveScript
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript\CLSID
HKEY_CLASSES_ROOT\JavaScript
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript1.1\CLSID
HKEY_CLASSES_ROOT\JavaScript1.1
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript1.2\CLSID
HKEY_CLASSES_ROOT\JavaScript1.2
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript1.3\CLSID
HKEY_CLASSES_ROOT\JavaScript1.3
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
ECMAScript\CLSID
HKEY_CLASSES_ROOT\ECMAScript
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}\ProgID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}\Implemented Categories
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}\InprocServer32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JScript Author\CLSID
HKEY_CLASSES_ROOT\JScript Author
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
LiveScript Author\CLSID
HKEY_CLASSES_ROOT\LiveScript Author
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript Author\CLSID
HKEY_CLASSES_ROOT\JavaScript Author
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript1.1 Author\CLSID
HKEY_CLASSES_ROOT\JavaScript1.1 Author
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript1.2 Author\CLSID
HKEY_CLASSES_ROOT\JavaScript1.2 Author
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}\ProgID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}\Implemented Categories
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}\InprocServer32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JScript.Encode\CLSID
HKEY_CLASSES_ROOT\JScript.Encode
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}\ProgID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}\Implemented Categories
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}\InprocServer32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}
Rutina de infiltración
Infiltra los archivos siguientes:
- %User Temp%\nsj2.tmp
- %User Temp%\nsj3.tmp\wmpns.dll
- %User Temp%\nsj3.tmp\System.dll
- %User Temp%\nsj3.tmp\ioSpecial.ini
- %User Temp%\nsj3.tmp\modern-wizard.bmp
- %User Temp%\nsj3.tmp\modern-header.bmp
- %User Temp%\nsj3.tmp\InstallOptions.dll
(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).
)
SOLUTION
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
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_CURRENT_USER\Software\3721
- CnsMin
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\VBScript
- OLEScript
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\VBS
- OLEScript
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{B54F3741-5B07-11cf-A4B0-00AA004A55E8}
- OLEScript
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\VBScript Author
- OLEScript
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\VBS Author
- OLEScript
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{B54F3742-5B07-11cf-A4B0-00AA004A55E8}
- OLEScript
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\VBScript.Encode
- OLEScript
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{B54F3743-5B07-11cf-A4B0-00AA004A55E8}
- OLEScript
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\VBScript.RegExp
- OLEScript
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{3F4DACA4-160D-11D2-A8E9-00104B365C9F}
- OLEScript
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JScript
- OLEScript
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\LiveScript
- OLEScript
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript
- OLEScript
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript1.1
- OLEScript
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript1.2
- OLEScript
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript1.3
- OLEScript
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\ECMAScript
- OLEScript
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}
- OLEScript
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JScript Author
- OLEScript
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\LiveScript Author
- OLEScript
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript Author
- OLEScript
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript1.1 Author
- OLEScript
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript1.2 Author
- OLEScript
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}
- OLEScript
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JScript.Encode
- OLEScript
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}
- OLEScript
Step 3
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_CURRENT_USER\Software\3721\CnsMin
- IIS = "&fb=0&fc=0&fd=0&fe=0&fg=0&fh=0&fi=0&fj=0&fa=0&fu="
- In HKEY_CLASSES_ROOT
- VBScript = "VB Script Language"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\VBScript
- CLSID = "{B54F3741-5B07-11cf-A4B0-00AA004A55E8}"
- In HKEY_CLASSES_ROOT
- VBS = "VB Script Language"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\VBS
- CLSID = "{B54F3741-5B07-11cf-A4B0-00AA004A55E8}"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {B54F3741-5B07-11cf-A4B0-00AA004A55E8} = "VB Script Language"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{B54F3741-5B07-11cf-A4B0-00AA004A55E8}
- ProgID = "VBScript"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{B54F3741-5B07-11cf-A4B0-00AA004A55E8}
- InprocServer32 = "%System%\vbscript.dll"
- In HKEY_CLASSES_ROOT
- VBScript Author = "VB Script Language Authoring"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\VBScript Author
- CLSID = "{B54F3742-5B07-11cf-A4B0-00AA004A55E8}"
- In HKEY_CLASSES_ROOT
- VBS Author = "VB Script Language Authoring"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\VBS Author
- CLSID = "{B54F3742-5B07-11cf-A4B0-00AA004A55E8}"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {B54F3742-5B07-11cf-A4B0-00AA004A55E8} = "VB Script Language Authoring"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{B54F3742-5B07-11cf-A4B0-00AA004A55E8}
- ProgID = "VBScript Author"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{B54F3742-5B07-11cf-A4B0-00AA004A55E8}
- InprocServer32 = "%System%\vbscript.dll"
- In HKEY_CLASSES_ROOT
- VBScript.Encode = "VBScript Language Encoding"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\VBScript.Encode
- CLSID = "{B54F3743-5B07-11cf-A4B0-00AA004A55E8}"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {B54F3743-5B07-11cf-A4B0-00AA004A55E8} = "VBScript Language Encoding"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{B54F3743-5B07-11cf-A4B0-00AA004A55E8}
- ProgID = "VBScript.Encode"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{B54F3743-5B07-11cf-A4B0-00AA004A55E8}
- InprocServer32 = "%System%\vbscript.dll"
- In HKEY_CLASSES_ROOT
- VBScript.RegExp = "VBScript Regular Expression"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\VBScript.RegExp
- CLSID = "{3F4DACA4-160D-11D2-A8E9-00104B365C9F}"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {3F4DACA4-160D-11D2-A8E9-00104B365C9F} = "VBScript Regular Expression"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{3F4DACA4-160D-11D2-A8E9-00104B365C9F}
- ProgID = "VBScript.RegExp"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{3F4DACA4-160D-11D2-A8E9-00104B365C9F}
- InprocServer32 = "%System%\vbscript.dll"
- In HKEY_CLASSES_ROOT
- JScript = "JScript Language"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JScript
- CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"
- In HKEY_CLASSES_ROOT
- LiveScript = "JScript Language"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\LiveScript
- CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"
- In HKEY_CLASSES_ROOT
- JavaScript = "JScript Language"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript
- CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"
- In HKEY_CLASSES_ROOT
- JavaScript1.1 = "JScript Language"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript1.1
- CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"
- In HKEY_CLASSES_ROOT
- JavaScript1.2 = "JScript Language"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript1.2
- CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"
- In HKEY_CLASSES_ROOT
- JavaScript1.3 = "JScript Language"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript1.3
- CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"
- In HKEY_CLASSES_ROOT
- ECMAScript = "JScript Language"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\ECMAScript
- CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {f414c260-6ac0-11cf-b6d1-00aa00bbbb58} = "JScript Language"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}
- ProgID = "JScript"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}
- InprocServer32 = "%System%\jscript.dll"
- In HKEY_CLASSES_ROOT
- JScript Author = "JScript Language Authoring"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JScript Author
- CLSID = "{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}"
- In HKEY_CLASSES_ROOT
- LiveScript Author = "JScript Language Authoring"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\LiveScript Author
- CLSID = "{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}"
- In HKEY_CLASSES_ROOT
- JavaScript Author = "JScript Language Authoring"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript Author
- CLSID = "{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}"
- In HKEY_CLASSES_ROOT
- JavaScript1.1 Author = "JScript Language Authoring"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript1.1 Author
- CLSID = "{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}"
- In HKEY_CLASSES_ROOT
- JavaScript1.2 Author = "JScript Language Authoring"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript1.2 Author
- CLSID = "{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {f414c261-6ac0-11cf-b6d1-00aa00bbbb58} = "JScript Language Authoring"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}
- ProgID = "JScript Author"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}
- InprocServer32 = "%System%\jscript.dll"
- In HKEY_CLASSES_ROOT
- JScript.Encode = "JScript Language Encoding"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JScript.Encode
- CLSID = "{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {f414c262-6ac0-11cf-b6d1-00aa00bbbb58} = "JScript Language Encoding"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}
- ProgID = "JScript.Encode"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}
- InprocServer32 = "%System%\jscript.dll"
Step 4
Restaurar este valor del Registro modificado
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\Classes\CLSID\{B54F3741-5B07-11cf-A4B0-00AA004A55E8}\InprocServer32
- From: ThreadingModel = "Both"
To: ThreadingModel = ""Both""
- From: ThreadingModel = "Both"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{B54F3742-5B07-11cf-A4B0-00AA004A55E8}\InprocServer32
- From: ThreadingModel = "Both"
To: ThreadingModel = ""Both""
- From: ThreadingModel = "Both"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{B54F3743-5B07-11cf-A4B0-00AA004A55E8}\InprocServer32
- From: ThreadingModel = "Both"
To: ThreadingModel = ""Both""
- From: ThreadingModel = "Both"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{3F4DACA4-160D-11D2-A8E9-00104B365C9F}\InprocServer32
- From: ThreadingModel = "Apartment"
To: ThreadingModel = ""Apartment""
- From: ThreadingModel = "Apartment"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{3F4DACA0-160D-11D2-A8E9-00104B365C9F}\TypeLib
- From: Version = "1.0"
To: Version = ""5.5""
- From: Version = "1.0"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{3F4DACA1-160D-11D2-A8E9-00104B365C9F}\TypeLib
- From: Version = "1.0"
To: Version = ""5.5""
- From: Version = "1.0"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{3F4DACA2-160D-11D2-A8E9-00104B365C9F}\TypeLib
- From: Version = "1.0"
To: Version = ""5.5""
- From: Version = "1.0"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{3F4DACA0-160D-11D2-A8E9-00104B365C9F}\TypeLib
- From: Version = "5.5"
To: Version = ""5.5""
- From: Version = "5.5"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{3F4DACA1-160D-11D2-A8E9-00104B365C9F}\TypeLib
- From: Version = "5.5"
To: Version = ""5.5""
- From: Version = "5.5"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{3F4DACA2-160D-11D2-A8E9-00104B365C9F}\TypeLib
- From: Version = "5.5"
To: Version = ""5.5""
- From: Version = "5.5"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{4f645220-306d-11d2-995d-00c04f98bbc9}
- From: IsInstalled = "1"
To: IsInstalled = ""1""
- From: IsInstalled = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{4f645220-306d-11d2-995d-00c04f98bbc9}
- From: Version = "5,6,0,8820"
To: Version = ""5,6,0,8820""
- From: Version = "5,6,0,8820"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{4f645220-306d-11d2-995d-00c04f98bbc9}
- From: Locale = "EN"
To: Locale = ""EN""
- From: Locale = "EN"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{4f645220-306d-11d2-995d-00c04f98bbc9}
- From: ComponentID = "MSVBScript"
To: ComponentID = ""MSVBScript""
- From: ComponentID = "MSVBScript"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}\InprocServer32
- From: ThreadingModel = "Both"
To: ThreadingModel = ""Both""
- From: ThreadingModel = "Both"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}\InprocServer32
- From: ThreadingModel = "Both"
To: ThreadingModel = ""Both""
- From: ThreadingModel = "Both"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}\InprocServer32
- From: ThreadingModel = "Both"
To: ThreadingModel = ""Both""
- From: ThreadingModel = "Both"
Step 5
Buscar y eliminar estos archivos
- %User Temp%\nsj2.tmp
- %User Temp%\nsj3.tmp\wmpns.dll
- %User Temp%\nsj3.tmp\System.dll
- %User Temp%\nsj3.tmp\ioSpecial.ini
- %User Temp%\nsj3.tmp\modern-wizard.bmp
- %User Temp%\nsj3.tmp\modern-header.bmp
- %User Temp%\nsj3.tmp\InstallOptions.dll
Step 6
Buscar y eliminar esta carpeta
- %User Temp%\nsj3.tmp
Step 7
Explorar el equipo con su producto de Trend Micro para eliminar los archivos detectados como TROJ_DNSCHANGER.USAV0109 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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