Impossible Disassembly

Created the Monday 18 March 2019. Updated 3 years, 6 months ago.

By using a data byte placed strategically after a conditional jump instruction, with the idea that disassembly starting at this byte will prevent the real instruction that follows from being disassembled because the byte that inserted is the opcode for a multibyte instruction.

The difficulty here is a basic assumption in disassembly, which states that one byte is only interpreted in the context of one instruction.


Technique Identifier

U0211


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