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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.[Sorting out the clean and jerk snatch narrow pull high turn down squat turn by force push high grasp support squat overhang turn]Title: Suspicious Three Brothers/江沪生和李芸接到养老院的护士茅娜报案，说养老院“闹”鬼，自己亲眼所见，二人前往检查闹“鬼”的房间，里面什么也没有。事隔一段时间，沪生忽然在半夜再次接到茅娜的电话尖叫，江沪生直奔那个闹鬼的房间，果然在钥匙里看到了上吊的白衣女人和凶手穿黑雨衣的身影，撞开门之后，却一身冷汗地发现房内依旧像上次检查一样，什么也没有，第二天，茅娜尸体躺在草地上，养老院护士纷纷辞职，老人也暴死。对养老院历史的彻底调查证明二十……老管家看见他，欣喜道：老爷，皇上醒了。三位有抱负的美丽女演员踏上了进入竞争激烈的洛杉矶演艺圈的征程，却发现通往明星之路的代价极其高昂。