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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.7. Please write one or two famous sayings about cherishing time that you have accumulated.美丽单纯的叶静宜是个快乐的全能主妇，她的丈夫王进能力不凡群，六岁的女儿可爱乖巧，她还有个十分要好的闺蜜-知性魅力的设计师姚倩倩。但生活就是这样充满戏剧性，只需要一个瞬间，叶静宜的爱情、友情，还有她的家庭就全部崩塌了。情同姐妹的姚倩倩竟然说一直都恨她，恨她抢走了自己的男友和幸福，恩爱六年的丈夫却只当自己是上位的棋子，更可悲的是收养了六年的女儿竟然是姚倩倩和丈夫旧情的结晶，这些残酷的真相像刀子一样一次次割裂着叶静宜脆弱的心。　　县委周书记让两个桑义州当面对质，结果是让县委所有的人更加云中雾中。正当周书记一筹莫展的时候，特委秘书马学文突然带伤出现。周书记和马秘书很熟，当即让他指证。桑义州怎么也没想到，马秘书居然指着他说：此人是混入特委的国民党特务！桑义州顿时身陷险境，同志们群情激愤，纷纷要求将他枪毙。　　新一届的柔道冠军Tony（郭富城饰）慕名而来，直指司徒宝挑战，试图一较高下。宿敌辣手李阿刚（梁家辉饰）又因当年一场未完的比赛，也找上门来要和司徒宝决一雌雄。　　中原镖局总镖头赵天豪遭铁衣卫陷害入狱，副总镖头杨云翼又被废去武功，使中原镖局陷入前所未有的大危机，正值风雨飘摇之际，所幸三小姐赵燕翎经历多番奇遇，学艺有成，且自幼受父亲侠骨之风熏陶，深明义理，毫不犹豫挺身而出，为洗清父亲赵天豪所蒙不白之冤，更为揭穿严嵩父子双手遮天、祸国殃民的恶行，决定一肩担负起护送血书的重责大任。 铁衣卫三档头云三娘於中原镖局熟识之七星会中设下陷阱，镖队进入七星会势力范围后不免稍微放松戒备，然而赵燕翎发现一路上突然平顺许多，觉得事有蹊跷，果然七星会总舵主凌千里突生怪病，且服用镖队代转灵药后病情转剧，令七星会人员十分不谅解，引来一场误会，所幸赵燕翎在贾湖士的暗示提醒下，抽丝剥茧，找出铁衣卫幕后操纵的诸多罪证。苦思对策下，赵燕翎决定将计就计，揪出幕后指使云三娘，伺机予以搏杀。然而面对人称“水无痕”云三娘，赵燕翎心中不免有些担忧，贾湖士旁敲侧击，提点她凡事...