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shellcode
In computer security, a shellcode is a small piece of code used as the payload in the exploitation of a software vulnerability. It is called "shellcode" because it typically starts a command shell from which the attacker can control the compromised machine, but any piece of code that performs a similar task can be called shellcode. Because the function of a payload is not limited to merely spawning a shell, some have suggested that the name shellcode is insufficient. However, attempts at replacing the term have not gained wide acceptance.
Shellcode is commonly written in machine code.
== Types of shellcode ==
Shellcode can either be ''local'' or ''remote'', depending on whether it gives an attacker control over the machine it runs on (local) or over another machine through a network (remote).
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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