Alias

Ransom:Win32/Milicry.A (Microsoft); GenericRXBB-AR!B22525795C00 (McAfee); Trojan.Gen.2 (Symantec); Troj/Ransom-EHV (Sophos); Trojan.Win32.Generic!BT (Sunbelt); Trojan horse Crypt7.IZG (AVG)

 Plataforma:

Windows

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

  • Tipo de malware
    Trojan

  • Destructivo?
    No

  • Cifrado
     

  • In the Wild:
    Sí

  Resumen y descripción

Este malware se elimina tras la ejecución.

  Detalles técnicos

Tamaño del archivo 240,896 bytes
Tipo de archivo EXE
Residente en memoria No
Fecha de recepción de las muestras iniciales 06 Apr 2017

Otras modificaciones del sistema

Modifica las siguientes entradas de registro:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.imaadpcm
fdwSupport = "1"

(Note: The default value data of the said registry entry is 1.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.imaadpcm
cFormatTags = "2"

(Note: The default value data of the said registry entry is 2.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.imaadpcm
aFormatTagCache = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.imaadpcm
cFilterTags = "0"

HKEY_CURRENT_USER\Software\Microsoft\
Multimedia\msacm.imaadpcm
MaxRTEncodeSetting = "6"

(Note: The default value data of the said registry entry is 6.)

HKEY_CURRENT_USER\Software\Microsoft\
Multimedia\msacm.imaadpcm
MaxRTDecodeSetting = "6"

(Note: The default value data of the said registry entry is 6.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msadpcm
fdwSupport = "1"

(Note: The default value data of the said registry entry is 1.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msadpcm
cFormatTags = "2"

(Note: The default value data of the said registry entry is 2.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msadpcm
aFormatTagCache = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msadpcm
cFilterTags = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msg711
fdwSupport = "1"

(Note: The default value data of the said registry entry is 1.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msg711
cFormatTags = "3"

(Note: The default value data of the said registry entry is 3.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msg711
aFormatTagCache = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msg711
cFilterTags = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msgsm610
fdwSupport = "1"

(Note: The default value data of the said registry entry is 1.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msgsm610
cFormatTags = "2"

(Note: The default value data of the said registry entry is 2.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msgsm610
aFormatTagCache = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msgsm610
cFilterTags = "0"

HKEY_CURRENT_USER\Software\Microsoft\
Multimedia\msacm.msgsm610
MaxRTEncodeSetting = "4"

(Note: The default value data of the said registry entry is 4.)

HKEY_CURRENT_USER\Software\Microsoft\
Multimedia\msacm.msgsm610
MaxRTDecodeSetting = "4"

(Note: The default value data of the said registry entry is 4.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.trspch
fdwSupport = "1"

(Note: The default value data of the said registry entry is 1.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.trspch
cFormatTags = "2"

(Note: The default value data of the said registry entry is 2.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.trspch
aFormatTagCache = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.trspch
cFilterTags = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msg723
fdwSupport = "1"

(Note: The default value data of the said registry entry is 1.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msg723
cFormatTags = "2"

(Note: The default value data of the said registry entry is 2.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msg723
aFormatTagCache = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msg723
cFilterTags = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msaudio1
fdwSupport = "1"

(Note: The default value data of the said registry entry is 1.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msaudio1
cFormatTags = "3"

(Note: The default value data of the said registry entry is 3.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msaudio1
aFormatTagCache = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msaudio1
cFilterTags = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.sl_anet
fdwSupport = "1"

(Note: The default value data of the said registry entry is 1.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.sl_anet
cFormatTags = "2"

(Note: The default value data of the said registry entry is 2.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.sl_anet
aFormatTagCache = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.sl_anet
cFilterTags = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.iac2
fdwSupport = "1"

(Note: The default value data of the said registry entry is 1.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.iac2
cFormatTags = "2"

(Note: The default value data of the said registry entry is 2.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.iac2
aFormatTagCache = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.iac2
cFilterTags = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.l3acm
fdwSupport = "1"

(Note: The default value data of the said registry entry is 1.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.l3acm
cFormatTags = "2"

(Note: The default value data of the said registry entry is 2.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.l3acm
aFormatTagCache = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.l3acm
cFilterTags = "0"

Rutina de infiltración

Infiltra los archivos siguientes:

  • %User Profile%\Application Data\OYcpeznp.tmp
  • %User Profile%\Application Data\GICD35lK.exe
  • %User Startup%\dnxnxx6U.lnk

(Nota: %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} y en el caso de Windows 2000, XP y Server 2003 en C:\Documents and Settings\{nombre de usuario}).

. %User Startup% es la carpeta Inicio del usuario activo, que en el caso de Windows 98 y ME suele estar en C:\Windows\Profiles\{nombre de usuario}\Menú Inicio\Programas\Inicio, en el caso de Windows NT en C:\WINNT\Profiles\{nombre de usuario}\Menú Inicio\Programas\Inicio y en C:\Documents and Settings\{nombre de usuario}\Menú Inicio\Programas\Inicio).

)

Otros detalles

Este malware se elimina tras la ejecución.

  Soluciones

Motor de exploración mínimo 9.8

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

Restaurar este valor del Registro modificado

[ 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_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.imaadpcm
    • From: fdwSupport = "1"
      To: fdwSupport = ""1""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.imaadpcm
    • From: cFormatTags = "2"
      To: cFormatTags = ""2""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.imaadpcm
    • From: aFormatTagCache = "{random values}"
      To: aFormatTagCache = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.imaadpcm
    • cFilterTags = "0"
  • In HKEY_CURRENT_USER\Software\Microsoft\Multimedia\msacm.imaadpcm
    • From: MaxRTEncodeSetting = "6"
      To: MaxRTEncodeSetting = ""6""
  • In HKEY_CURRENT_USER\Software\Microsoft\Multimedia\msacm.imaadpcm
    • From: MaxRTDecodeSetting = "6"
      To: MaxRTDecodeSetting = ""6""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msadpcm
    • From: fdwSupport = "1"
      To: fdwSupport = ""1""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msadpcm
    • From: cFormatTags = "2"
      To: cFormatTags = ""2""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msadpcm
    • From: aFormatTagCache = "{random values}"
      To: aFormatTagCache = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msadpcm
    • cFilterTags = "0"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msg711
    • From: fdwSupport = "1"
      To: fdwSupport = ""1""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msg711
    • From: cFormatTags = "3"
      To: cFormatTags = ""3""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msg711
    • From: aFormatTagCache = "{random values}"
      To: aFormatTagCache = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msg711
    • cFilterTags = "0"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msgsm610
    • From: fdwSupport = "1"
      To: fdwSupport = ""1""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msgsm610
    • From: cFormatTags = "2"
      To: cFormatTags = ""2""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msgsm610
    • From: aFormatTagCache = "{random values}"
      To: aFormatTagCache = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msgsm610
    • cFilterTags = "0"
  • In HKEY_CURRENT_USER\Software\Microsoft\Multimedia\msacm.msgsm610
    • From: MaxRTEncodeSetting = "4"
      To: MaxRTEncodeSetting = ""4""
  • In HKEY_CURRENT_USER\Software\Microsoft\Multimedia\msacm.msgsm610
    • From: MaxRTDecodeSetting = "4"
      To: MaxRTDecodeSetting = ""4""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.trspch
    • From: fdwSupport = "1"
      To: fdwSupport = ""1""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.trspch
    • From: cFormatTags = "2"
      To: cFormatTags = ""2""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.trspch
    • From: aFormatTagCache = "{random values}"
      To: aFormatTagCache = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.trspch
    • cFilterTags = "0"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msg723
    • From: fdwSupport = "1"
      To: fdwSupport = ""1""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msg723
    • From: cFormatTags = "2"
      To: cFormatTags = ""2""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msg723
    • From: aFormatTagCache = "{random values}"
      To: aFormatTagCache = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msg723
    • cFilterTags = "0"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msaudio1
    • From: fdwSupport = "1"
      To: fdwSupport = ""1""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msaudio1
    • From: cFormatTags = "3"
      To: cFormatTags = ""3""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msaudio1
    • From: aFormatTagCache = "{random values}"
      To: aFormatTagCache = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msaudio1
    • cFilterTags = "0"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.sl_anet
    • From: fdwSupport = "1"
      To: fdwSupport = ""1""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.sl_anet
    • From: cFormatTags = "2"
      To: cFormatTags = ""2""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.sl_anet
    • From: aFormatTagCache = "{random values}"
      To: aFormatTagCache = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.sl_anet
    • cFilterTags = "0"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.iac2
    • From: fdwSupport = "1"
      To: fdwSupport = ""1""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.iac2
    • From: cFormatTags = "2"
      To: cFormatTags = ""2""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.iac2
    • From: aFormatTagCache = "{random values}"
      To: aFormatTagCache = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.iac2
    • cFilterTags = "0"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.l3acm
    • From: fdwSupport = "1"
      To: fdwSupport = ""1""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.l3acm
    • From: cFormatTags = "2"
      To: cFormatTags = ""2""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.l3acm
    • From: aFormatTagCache = "{random values}"
      To: aFormatTagCache = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.l3acm
    • cFilterTags = "0"

Step 3

Buscar y eliminar estos archivos

[ 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 Profile%\Application Data\OYcpeznp.tmp
  • %User Profile%\Application Data\GICD35lK.exe
  • %User Startup%\dnxnxx6U.lnk

Step 4

Explorar el equipo con su producto de Trend Micro para eliminar los archivos detectados como Ransom_MILICRY.GQF 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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