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尹旭来到侧面的宫墙之外，与蒲俊协同观察过四周的情形后，彼此对望一眼，确认无误。"Comment List"所以，不论遇见啥艰难困苦，咱们都不能颓丧失望，这样才能诸事顺心。Internet Drug Information Service Qualification Certificate: (Beijing)-Operation-2010-0004 Haidian Public Security Bureau Network Record Number: 110108119790年代，南⽅小镇烟波岛上出现了居⺠接连神秘失踪的诡异事件。事件发⽣的时候，一个身份不明的短发少女随着神秘的⿊色黏液来到小镇，似乎与失踪事件极为关联。为了找到失踪的好友游尚杰，⼩镇⾼中生付君浩和张宇轩带着这个神秘少⼥四处探查。与此同时，正在寻找失踪的哥哥的⼩镇高中⼥教师沙拉，也和欢喜冤家苏民绪结成⼀支⼩队，对于突然出现在岛上的神秘⿊衣⼈团伙展开了了调查...... 各处出现的⿊色粘液究竟是什什么?失踪的⼈们到底被什么东⻄卷走?街上的枯井当中为何传来怪声?⿊衣⼈口中的博⼠又是指向何⼈人?⼀切的⼀切都表明，一场巨大的危机正在悄悄逼近岛上的居民们，⽽善良的⼈们对此一无所知......Some car air conditioners will overflow with peculiar smell as soon as they are turned on, which is unbearable. I believe many car owners have encountered the phenomenon of peculiar smell in car air conditioners. How does the car air conditioner produce peculiar smell?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.