¿Cómo evitar ser víctima del virus Ransomware?

Un informe de Deloitte distribuido este martes 16 de mayo indicó que actualmente la amenaza del Wannacry está contenida en aquellos entornos donde se han aplicado los parches correspondientes a las diferentes versiones del sistema operativo Windows (XP, 8 y 2003 Server) de Microsoft.

- El presidente de Microsoft, Brad Smith, culpó a la Agencia Central de Inteligencia (CIA, por sus siglas en inglés) por el ciberataque masivo que afectó a cerca de 200 mil usuarios y generó un caos en instituciones y empresas de varias partes del mundo el viernes pasado.

La falla había sido previamente divulgada en documentos pirateados de la Agencia de Seguridad Nacional (NSA) estadounidense. Lieu dijo que es "profundamente preocupante" el hecho de que la NSA probablemente creó el malware original utilizado para secuestrar computadoras.

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Asimismo, Smith reconoció la "responsabilidad" de Microsoft en la respuesta a esa "llamada de atención" que ha supuesto el ataque de WannaCry, que "explota" vulnerabilidades en el sistema operativo Windows "robadas" a la NSA. Lieu dijo que el proceso de divulgación actual no es transparente y a menudo es malinterpretado.

La misma compañía acusó a la NSA de ser la culpable de este ataque, pues tal y como Edward Snowden lo mencionó el pasado viernes, este ransomware fue robado de la agencia norteamericana por el grupo de hackers llamado Shadow Brokers.

Este ataque es otro ejemplo de por qué el almacenamiento de vulnerabilidades por parte de los gobiernos es un problema. Una versión apunta que podrían tener su origen en Corea del Norte.

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Sin embargo, los investigadores de seguridad dicen que las firmas que no mantienen su software actualizado también son responsables del brote del ransomware.

Por lo mismo, Pavez señala que "en base a eso las áreas de tecnología dentro de las empresas tienen que ser capaces de transmitir eso, porque siempre el eslabón más débil dentro de una empresa en materia de seguridad son las personas, ellas son las que ejecutan estos programas generalmente y ocurren estas cosas".

Los hospitales del Reino Unido se encontraron entre las organizaciones afectadas por el brote de ransomware y por ende, se vieron forzadas a reprogramar pacientes y se le advirtió a la gente que permaneciera lejos de las salas de emergencia si fuera posible. Eso implica que esos clientes no recibieron la actualización en marzo. El virus también alcanzó a Estados Unidos y Reino Unido.

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La Administración del Ciberespacio, el Departamento de Seguridad Pública de Pekín y la Comisión Municipal de Economía y Tecnología de la Información de Pekín emitieron ayer un comunicado en el que aseguraron que esta nueva versión del virus -WannaCry 2.0- se ha saltado las medidas de seguridad implantadas tras el primer ataque. Aquellos que tienen Windows Update habilitado están protegidos contra los ataques a esa vulnerabilidad. "Debido a que este ataque de WannaCry ha sido tan eficaz hasta el momento, es muy probable que este sea el primero de muchos ataques de ransomware que aprovechen las fallas para efectivamente diseminar sus cargas explosivas a través de Internet".

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