Importance

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Abstract

In accordance with this invention, a system, method, and computer-readable medium that selectively scans files stored on a computing device for malware is provided. One aspect of the present invention includes identifying files that need to be scanned for malware when a software update that includes a malware signature is received. More specifically, attributes of the new malware are identified by searching metadata associated with the malware. Then, the method searches a scan cache and determines whether each file with an entry in the scan cache is the type that may be infected by the malware. If a file is the type that may be infected by the malware, the file is scanned for malware when a scanning event such as an I/O request occurs. Conversely, if the file is not the type that may be infected by the malware, the file may be accessed without a scan being performed.

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First Claim