Importance

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Abstract

A method is provided of protecting a computer against malware affection. The computer has a data storage and an operating system for managing the data storage. The method comprises providing a filter module in the operating system which operates to detect an attempt to store data in the data storage, to determine a data format of the data to be stored in the data storage, and to prevent storage of the data if the data format is determined to relate to a predefined type. The filter module may be provided as a file system filter driver in a kernel of the operating system. The filter module may be arranged to operate between an input/output manager of the operating system and a driver associated with the data storage. The input/output manager and driver associated with the data storage may form part of the kernel of the operating system.

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First Claim