Importance

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Abstract

Methods and systems for content filtering of remote file-system access protocols are provided. According to one embodiment, holding buffers in which data collected from a remote file-system access protocol is stored, a holding buffer context table, a file map table and a usage table corresponding to each holding buffer are created within one or more computer-readable media. References to each of the holding buffers are tracked within the holding buffer context table. References to a common file are mapped to a common holding buffer of the holding buffers with the file map table. Modified and unmodified portions of the holding buffers are tracked using the usage table corresponding to each holding buffer. Responsive to a predetermined event in relation to a holding buffer or the holding buffers, the existence of malicious, dangerous or unauthorized content contained within the holding buffer is determined by performing content filtering on the holding buffer.

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First Claim