原理很简单，以前看过一本书叫DOS大全，上面说在DOS下向0x64端口发送数据0xFE机器关机，经移植到XP测试还真行：
#include<windows.h>
//这下面自定义函数入口
#pragma comment(linker, "/ENTRY:EntryPoint")
//设置区段属性,跟区段在内存起始地址
//这里面要加写入的权限,不然程序就运行不了了
//E为执行，R为可读,W为可写
#pragma comment(linker,"/SECTION:.text,ERW /ALIGN:0x1000")
//下面合并区段,
#pragma comment(linker,"/merge:.data=.text")
#pragma comment(linker,"/merge:.rdata=.text")
typedef int NTSTATUS;
typedef enum _SYSDBG_COMMAND
{
SysDbgSysReadIoSpace = 14,
SysDbgSysWriteIoSpace = 15
}SYSDBG_COMMAND, *PSYSDBG_COMMAND;
typedef NTSTATUS (NTAPI * PZwSystemDebugControl)
(
SYSDBG_COMMAND ControlCode,
PVOID InputBuffer,
ULONG InputBufferLength,
PVOID OutputBuffer,
ULONG OutputBufferLength,
PULONG ReturnLength
);
PZwSystemDebugControl ZwSystemDebugControl = NULL;
typedef struct _IO_STRUCT
{
DWORD IoAddr; // IN: Aligned to NumBYTEs,I/O address
DWORD Reserved1; // Never accessed by the kernel
PVOID pBuffer; // IN (write) or OUT (read): Ptr to buffer
DWORD NumBYTEs; // IN: # BYTEs to read/write. Only use 1, 2, or 4.
DWORD Reserved4; // Must be 1
DWORD Reserved5; // Must be 0
DWORD Reserved6; // Must be 1
DWORD Reserved7; // Never accessed by the kernel
}
IO_STRUCT, *PIO_STRUCT;
BOOL EnablePrivilege (PCSTR name)
{
HANDLE hToken;
BOOL rv;
TOKEN_PRIVILEGES priv = { 1, {0, 0, SE_PRIVILEGE_ENABLED} };
LookupPrivilegeValue (0,name,&priv.Privileges[0].Luid);
OpenProcessToken(GetCurrentProcess (),TOKEN_ADJUST_PRIVILEGES,&hToken);
AdjustTokenPrivileges (hToken,FALSE,&priv,sizeof priv,0,0);
rv = GetLastError () == ERROR_SUCCESS;
CloseHandle (hToken);
return rv;
}
BYTE InPortB (int Port)
{
BYTE Value;
IO_STRUCT io;
io.IoAddr = Port;
io.Reserved1 = 0;
io.pBuffer = (PVOID) (PULONG) & Value;
io.NumBYTEs = sizeof (BYTE);
io.Reserved4 = 1;
io.Reserved5 = 0;
io.Reserved6 = 1;
io.Reserved7 = 0;
ZwSystemDebugControl(SysDbgSysReadIoSpace,&io,sizeof(io),NULL,0,NULL);
return Value;
}
void OutPortB (int Port, BYTE Value)
{
IO_STRUCT io;
io.IoAddr = Port;
io.Reserved1 = 0;
io.pBuffer = (PVOID) (PULONG) & Value;
io.NumBYTEs = sizeof (BYTE);
io.Reserved4 = 1;
io.Reserved5 = 0;
io.Reserved6 = 1;
io.Reserved7 = 0;
ZwSystemDebugControl(SysDbgSysWriteIoSpace,&io,sizeof (io),NULL,0,NULL);
}
int EntryPoint( void)
{
HMODULE hNtdll;
UINT uData = 0;
EnablePrivilege (SE_DEBUG_NAME);
hNtdll = LoadLibrary ("ntdll.dll");
if(hNtdll == NULL)
{
MessageBox (NULL, TEXT ("Load ntdll.dll error!"),
"", MB_ICONERROR) ;
return 0;
}
ZwSystemDebugControl = (PZwSystemDebugControl)GetProcAddress(hNtdll, "ZwSystemDebugControl");
if(ZwSystemDebugControl == NULL)
{
MessageBox (NULL, TEXT ("Load ZwSystemDebugControl function error!"),
"", MB_ICONERROR) ;
return 0;
}
OutPortB(0x64,0xFE);//OxFE 关机代码
return 0;
}
仅作娱乐之用，若对机器产生副作用与本人无关，各位大虾飘过
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