Heuristic detection of malicious computer code by page tracking
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United States of America Patent
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Aug 26, 2008
Grant Date -
Jan 22, 2004
app pub date -
Oct 4, 2002
filing date -
Jul 19, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
To detect a computer virus in a host file (100), an emulating module (414) emulates the host file (100) in a virtual machine (422) having a virtual memory (426). While emulating the host file (100), the system (400) tracks the host file's access of the virtual memory (426). Responsive to an access in a non-normal address range of the virtual memory (426) by the host file (100), a flag recording module (522) sets a flag. A virus reporting module (526) declares a potential virus based on whether the flag is set.
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