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日安自小跟随石场老板金石当学徒，到了今天已是内行的出色师傅。日安从没妄自菲薄，深信只要脚踏实地，积极投入，就是以磐石为业，也一样可以拥有丰盛人生。然后师傅金石的儿子，与日安一同长大的永来，却好高骛远，爱投机取巧。永来为了一朝发达，不时利用日安，幸而日安从不计较，继续视永来如亲兄弟。可惜永来的行为变本加厉，最后更连累老父。尹旭淡淡道：我们有四十万将士，广大国土只只留下十万兵力镇守已经是捉襟见肘了，不可能再抽调更多兵力，所以调动三十万大军作战已经是极限了。千万不要动那些猴王猴头，会挨打。若有一日道不合？那弟子唯有自传自道。所谓游民，便是无家可归，无田可耕，背井离乡，没胆子当海盗，没路子走私的人民，这类人民要么四处流离饿死病死老死，要么被政府抓了充军，要么被土匪抓了为盗，未曾想到，澎湖之岛，仅仅往返福建数月，便可发家致富。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.Sunshine Portfolio Introduction: