SOFTWARE DEOBFUSCATION SYSTEM AND METHOD
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United States of America Patent
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Issued Date -
Mar 5, 2009
app pub date -
Aug 17, 2008
filing date -
Aug 29, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A system and method are disclosed that enable automated deobfuscation of software. A method may include identifying at least one section of target software matching trigger criteria, either by using pattern matching or behavior analysis; emulating at least a portion of the identified section; and generating deobfuscated software by substituting a simplified section for the identified section. The method may further be iterated. Emulation includes simulating the effect of certain instructions on control flow and/or memory locations, such as the program stack, a register, cache memory, heap memory, or other memory. The simplified section may comprise a number of no operation (NOP) instructions replacing, which may then be jumped for further simplification.
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