Centralized scanner database with optimal definition distribution using network queries
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United States of America Patent
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Jul 10, 2012
Grant Date -
Nov 26, 2009
app pub date -
May 21, 2008
filing date -
May 21, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A system and method detects malware on client devices based on partially distributed malware definitions from a central server. A server stores malware definitions for known malware. The server generates one or more filters based on the malware definitions and distributes the filter(s) to client devices. The server also distributes full definitions to the clients for a subset of the most commonly detected malware. The client device scans files for malware by first applying the filter to a file. If the filter outputs a positive detection, the client scans the file using the full definition to determine if the file comprises malware. If the full definition is not stored locally by the client, the client queries the server for the definition and then continues the scanning process.
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