第三方执行代码侵入方法，常用于病毒/反病毒技术。即在一个已编译完成的PC可执行代码中嵌入自己的可执行代码，并不干扰原程序。侵入级别在物理代码地址级别，低与Rin3级。有很强的攻击性。-third-party code execution invasive method, commonly used in HIV / anti-virus technology. That is compiled in a complete PC executable code embedded in the executable code, does not interfere with the original procedure. Invasive - level code addresses the physical level, with low-level Rin3. A strong offensive.