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香荽招呼黛丝和珊瑚跟上。Blue: Blue Grass, Dragon Boat FruitFigure 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.后来我便开始写小说，这部小说出乎意料的火了起来。According to IDC's 1998 survey, the industries with high demand for IT personnel are: telecommunication, business services, medical care, retail and wholesale, and financial services. Compared with the technology industry, which employs purely technicians, it will come in a much wider range.More than a month ago, my personal website was attacked by DDOS and went offline for more than 50 hours. This article will talk about how to deal with such attacks.