Computer immune system and method for detecting unwanted code in a computer system
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United States of America Patent
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Aug 15, 2006
Grant Date -
N/A
app pub date -
Aug 18, 2000
filing date -
Jul 14, 2000
priority date (Note) -
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Abstract
An automated analysis system detects malicious code within a computer system by generating and subsequently analyzing a behavior pattern for each computer program introduced to the computer system. Generation of the behavior pattern is accomplished by a virtual machine invoked within the computer system. An initial analysis may be performed on the behavior pattern to identify infected programs on initial presentation of the program to the computer system. The analysis system also stores behavior patterns and sequences with their corresponding analysis results in a database. Newly infected programs can be detected by analyzing a newly generated behavior pattern for the program with reference to a stored behavior pattern to identify presence of an infection or payload pattern.
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