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Fortunately, I was able to suck my soul last week. I sucked it to death.Magic Critical Hit Rate PearlFigure 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.你在他手下做官，有事多跟他请教，有难题也找他，他一定不会推脱的。20,000 Yuan "Depth" Horgos "Face Changing": Zhang Xiaotian, a Game Reporter Behind Tax Depression; Editor, Yu Wei, Cui Yu清乾隆初年。乾隆爷以孝治天下，施行仁政，决定从今年殿试中，选拔优秀人才出任官吏，竖立楷模，以为天下俲尤。黄马褂杨州人，屡次进京应贡试都名落孙山，今年他是文昌星高照独占鳌头，只有一关殿试和皇上应对得体，必能被钦点为状元。殿堂之上，黄马褂显现出了读书人的迂，为了吏治的事竟与乾隆争辩之不足。乾隆虽然认为黄马褂所说据理，但不懂为官，只点了他二榜榜眼，未授一官半职。乾隆过意不去，暗将京城守将孟京辉家中嫁不出去的老姑娘孟娇娇钦点给他。失意的黄马褂被算命先生唐敬之拦下，说他还有三年困恶，只有成婚之后，发于江南。黄马褂不信这一套，身上也没钱付算命费，和唐敬之激辩。此时，孟娇娇带着贴身丫环大凤前来算命，娇娇人高马大，声如洪钟，怒斥黄马褂妨碍旁人算命，黄马褂和娇娇立起冲突，黄马褂竟然将娇娇的丫环大凤当成了守将的千金小姐。孟京辉认为黄马褂不但放肆，且坏了娇娇名节，要惩处，不料娇娇对黄马褂甚有好感，愿意屈嫁，黄马褂确不知如何是好。婚礼当日，乾隆降旨，革了孟金辉的官。黄马褂虽然坚持和娇娇成婚，娇娇敬重黄马褂的人品找一个没有何永强的地方就好了。