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　　回到2008北方某城市一伙劫匪公然光天化日之下持枪强枪银行运钞车、劫走巨款、打死打伤运钞员劫案发生举城震惊刑警队长洪毅和战友们根据现场留下线索、明察暗访费尽周折终于电视台女导演赵安娜帮助下找到了案犯踪迹原来这个制造惊天大案主犯正洪毅部队生死战友文德良于这对昔日战友正义与邪恶搏杀中展开了一场生死之战洪毅率刑警队追踪并击毙文德良弟弟案犯文德华并得到文德良妻子何晶举报后包围了正要逃窜文德良穷凶极恶文德良则乘机劫持洪毅爱女娟娟面对生死亲情考验洪毅和战友舍生忘死、义无反顾将文德良为首凶犯一举歼灭捍卫了金盾尊严……高中生车恩尚是个打工狂人，她与单亲妈妈相依为命，过着黯淡的日子，是个不折不扣的“贫穷继承者”。金叹是韩国首屈一指大企业帝国集团的继承人，长相帅气，身世显赫，生来便拥有一切，然而他是个私生子，被同父异母的哥哥视为眼中钉，“流放”到美国留学。为了找姐姐，恩尚独自来到美国，发现姐姐风光的生活全是谎言，在梦想崩溃之时，恩尚意外遇到了金叹。经历了哭笑不得的事件后，金叹把无家可归的恩尚带回家。随即金叹的未婚妻闯上门来，自此，灰姑娘与王子公主们结下一段孽缘。命运的齿轮持续转动，恩尚和金叹的相遇没有终止在美国。回到韩国后，恩尚转学到富家子弟云集的帝国高中，高智商坏公子崔英道，财阀大小姐李宝娜，这些令人羡慕的18岁继承者们逐一登场。见到刘邦也不觉得有什么，可是张良却不同了，前世的他对张子房可是敬佩有加Public String getName () {Http://www.freebuf.com/news/107916.htmlFigure 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.