Method and apparatus for detecting denial-of-service attacks using kernel execution profiles
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United States of America Patent
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May 9, 2006
Grant Date -
Mar 27, 2003
app pub date -
Sep 27, 2001
filing date -
Sep 27, 2001
priority date (Note) -
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Abstract
One embodiment of the present invention provides a system that detects denial-of-service attacks by using an execution profile for a kernel of a server computer system. The system produces a run-time execution profile by gathering statistics related to execution of a protocol stack within the kernel, wherein the protocol stack processes packets received from client computer systems. Next, the system compares the run-time execution profile with a normal execution profile, wherein the normal execution profile is representative of execution when the server is not subject to a denial-of-service attack. If the run-time execution profile deviates from the normal execution profile, the system indicates that a denial-of-service attack is taking place.
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