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忽然哗啦啦一阵响动，那随从急忙回头。Figure 1 is an example of a JOP attack. In this example, the attacker's aim is to execute a system call "int 0x80" to open a new command line window. To do this, an attacker needs to modify the contents of the eax register to "0x0000000b" and the ebx register to the string "/bin/sh" before "int 0x80" is called, and the ecx and edx registers must point to the value "0x00000000". Suppose the value "0x0000000" and the string "/bin/sh" can be found in memory when the program is running. An attacker needs to construct the value "0x0000000b" himself. However, for the value "0x0000000b", when an attacker saves data to the stack through a buffer overflow, the "0x00" byte will trigger the system to terminate the read operation. This example specifically describes how the attacker uses the existing code snippet in the program to modify the value of val pushed into the stack by the attacker step by step from "0xffffff0b" to the value required by the system call "0x0000000b", thus implementing JOP attack. The following are the detailed steps of the process.胡镇却阴沉沉地笑道：想让爷们有兴致，张兄弟不妨让令妹过来帮着斟酒。李英杰是全国武术冠军，自身形象又好，想要进入影视圈，其实很容易，相信无论哪个影视公司都不会拒绝他。Some of the titles of each chapter in the original book are vague, so they are redrafted to make it clear at a glance. The translator is a layman in historiography, and the names of some secondary figures cannot be verified at the moment, so he has to be marked with transliteration for the time being. I hope experts will not hesitate to give advice. As for the crude translation, it is also hard to hide.Three, how to set up column separation lineEvent.preventDefault ();