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Efficient file scanning using input-output hints

  • US 7,975,303 B1
  • Filed: 06/27/2005
  • Issued: 07/05/2011
  • Est. Priority Date: 06/27/2005
  • Status: Active Grant
First Claim
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1. A computer implemented method for efficiently scanning files for malicious code, the method comprising:

  • using a computer to perform steps comprising;

    scanning a file stored on a medium for malicious code identified by a malicious code signature;

    creating a listing of portions of the file accessed during the scanning for the malicious code signature; and

    utilizing the listing of accessed portions of the file to optimize a subsequent scan of the file by the computer for malicious code, wherein the utilizing comprises, prior to the subsequent scan of the file, relocating the accessed portions of the file to be contiguous on the medium.

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