Efficient detection of computer viruses and other data traits

Details Efficient detection of computer viruses and other data traits Efficient detection of computer viruses and other data traits

1997-07-10

2000-01-18

Palys, Joseph E.

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Protection at a particular protocol layer

G06F 1300

Patent

active

060165464

ABSTRACT:
The present invention provides a method of reducing the amount of memory required to scan a given data string for the presence of computer viruses or other data traits of interest including the steps of 1) loading into a memory of a computer a set of generic features that are functionally similar to standard computer virus signatures, but tend to be less specific to particular viruses, 2) locating occurrences of the generic features within the data string, 3) applying a first mapping from the occurrences located during step 2) to obtain a subset of standard signatures, 4) loading the subset of standard signatures into a memory of said computer, 5) locating occurrences within the data string of all signatures from the subset of standard signatures, and 6) applying a second mapping from the occurrences located during step 5) to identify a set of computer viruses that are likely to be present in the data string.

REFERENCES:
patent: 5452442 (1995-09-01), Kephart
patent: 5675711 (1997-10-01), Kephart et al.
patent: 5765030 (1996-07-01), Nachenberg et al.
patent: 5822517 (1996-04-01), Dotan
patent: 5832208 (1996-09-01), Chen et al.
patent: 5854916 (1996-11-01), Nachenberg
Communications Components, GaAs & Silicon Products Designer's Catalog, RF Components for RF/ID and RF Tags, Hewlett-Packard Co. 5091-4574E, pp. 2-16 to 2-17, Jan. 1993.

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