System and process for monitoring malicious access of protected content
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United States of America Patent
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Dec 13, 2016
Grant Date -
Aug 6, 2015
app pub date -
Feb 4, 2014
filing date -
Feb 4, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A method detects unauthorized access of data, and includes receiving data from a content provider by a content reproducing device; storing the received data in a memory storage device of the content reproducing device; obtaining an address range of a buffer of the content reproducing device; intercepting system application programming interface calls related to memory access of the address range of the buffer; comparing the intercepted system application programming interface calls to an expected sequence of memory access calls; and determining that a particular memory access call is unauthorized when the particular memory access call accesses the address range of the buffer while not belonging to the expected sequence of memory access calls.
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