从第9位开始如下：
X1Y0uN3tG00d

20101001

20101001X1Y0uN3tG00d0000


signed int __cdecl sub_4012F0(int a1)
{
  signed int v1; // ecx
  signed int v2; // edx
  int v4; // [esp+0h] [ebp-38h]
  int v5; // [esp+4h] [ebp-34h]
  int v6; // [esp+8h] [ebp-30h]
  char v7; // [esp+Ch] [ebp-2Ch]
  int v8; // [esp+10h] [ebp-28h]
  int v9; // [esp+14h] [ebp-24h]
  int v10; // [esp+18h] [ebp-20h]
  int v11; // [esp+1Ch] [ebp-1Ch]
  int v12; // [esp+20h] [ebp-18h]

  v1 = 8;
  v2 = 0;
  v8 = 1920298841;
  v9 = 1886275935;
  v10 = 1230992501;
  v11 = 1918328691;
  v12 = 6778479;
  v4 = 811151704;
  v5 = 1949519477;
  v6 = 1680879687;
  v7 = 0;
  while ( *((_BYTE *)&v4 + v2) == *(_BYTE *)(v1 + a1) )
  {
    ++v2;
    ++v1;
    if ( v2 > 11 )
      return 1;
  }
  return 0;
}


int __cdecl sub_401460(char *Str)
{
  char Dest; // [esp+8h] [ebp-10h]

  if ( strlen(Str) == 24 )
  {
    if ( sub_4013B0(Str) )
    {
      Str[20] -= 88; //58
      Str[21] -= 70; //45
      Str[22] -= 3;  //03
      Str[23] -= 107; //6B
      strcpy(&Dest, Str);
    }
  }
  else
  {
    printf("String Length is Wrong");
  }
  return 0;
}


int __cdecl sub_4013B0(int a1)
{
  int v1; // ebx
  int v2; // ecx
  int v3; // esi
  int result; // eax

  sub_401380(a1);
  v1 = dword_40802C + 1000 * dword_408020 + 100 * dword_408024 + 10 * dword_408028;
  v2 = dword_408034 + 10 * dword_408030;
  v3 = dword_40803C + 10 * dword_408038;
  result = 2 * (v1 + v2);
  if ( result == 4040 )
  {
    result = 3 * v2 / 2;
    if ( result + 100 * v3 == 115 )
    {
      result = 1;
      if ( v1 - 110 * v3 != 1900 )
        result = printf("Key_Is_Wrong,Please_Input_Again!");
    }
  }
  return result;
}

前8位是数字
int __cdecl sub_401380(int a1)
{
  signed int v1; // edx
  int result; // eax

  v1 = 0;
  do
  {
    result = *(char *)(v1 + a1) - 48;
    dword_408020[v1++] = result;
  }
  while ( v1 <= 7 );
  return result;
}

[招生]科锐逆向工程师培训(2024年11月15日实地，远程教学同时开班, 第51期)