Malware scanning of compressed computer files
First Claim
Patent Images
1. A computer program product embodied on a computer readable medium for controlling a computer to scan a compressed computer file for malware, said compressed computer file being compressed using a compression algorithm, said computer program product comprising:
- comparison code operable to compare a plurality of compressed malware signatures compressed using said compression algorithm with said compressed computer file to identify malware within said compressed computer file;
detection code operable to detect from a compressed computer file to be scanned what compression algorithm has been used to compress said compressed computer file; and
compression code operable to compress a plurality of uncompressed malware signatures using said detected compression algorithm to generate said plurality of compressed malware signatures.
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0 Petitions
Accused Products
Abstract
A malware scanner (8) operates to scan compressed computer files (16) by compressing the malware signatures (17) using the same compression algorithm as used for the compressed computer file and then comparing the compressed malware signatures (18) with the compressed computer file directly.
292 Citations
15 Claims
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1. A computer program product embodied on a computer readable medium for controlling a computer to scan a compressed computer file for malware, said compressed computer file being compressed using a compression algorithm, said computer program product comprising:
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comparison code operable to compare a plurality of compressed malware signatures compressed using said compression algorithm with said compressed computer file to identify malware within said compressed computer file; detection code operable to detect from a compressed computer file to be scanned what compression algorithm has been used to compress said compressed computer file; and compression code operable to compress a plurality of uncompressed malware signatures using said detected compression algorithm to generate said plurality of compressed malware signatures. - View Dependent Claims (2, 3, 4, 5)
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6. A method of scanning a compressed computer file for malware, said compressed computer file being compressed using a compression algorithm, said method comprising the step of:
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comparing a plurality of compressed malware signatures compressed using said compression algorithm with said compressed computer file to identify malware within said compressed computer file; detecting from a compressed computer file to be scanned what compression algorithm has been used to compress said compressed computer file; and compressing a plurality of uncompressed malware signatures using said detected compression algorithm to generate said plurality of compressed malware signatures. - View Dependent Claims (7, 8, 9, 10)
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11. Apparatus for scanning a compressed computer file for malware, said compressed computer file being compressed using a compression algorithm, said apparatus comprising:
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comparison logic operable to compare a plurality of compressed malware signatures compressed using said compression algorithm with said compressed computer file to identify malware within said compressed computer file; detection logic operable to detect from a compressed computer file to be scanned what compression algorithm has been used to compress said compressed computer file; and compression logic operable to compress a plurality of uncompressed malware signatures using said detected compression algorithm to generate said plurality of compressed malware signatures. - View Dependent Claims (12, 13, 14, 15)
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Specification