V8 Bytecode Decompiler [patched]

V8 maps local variables, arguments, and temporary expressions to virtual registers. are denoted as a0 , a1 , a2 , etc. Local Variables are denoted as r0 , r1 , r2 , etc. Common Bytecode Opcodes

Using View8, CPR decompiled of malicious compiled V8 applications spanning: v8 bytecode decompiler

Ldar a1 loads the function argument a1 into the accumulator ( Mul r0, [0] multiplies the accumulator value ( param1p a r a m 1 ) by register r0 ( ). The result is stored back into the accumulator. V8 maps local variables