Bridgesk's Blog

int __cdecl main(int argc, const char **argv, const char **envp)
{
  __int64 v3; // rax
  __int64 v4; // rax
  const CHAR *v5; // r11
  __int64 v6; // r10
  int v7; // er9
  const CHAR *v8; // r10
  __int64 v9; // rcx
  __int64 *v10; // rax
  unsigned int v12; // ecx
  __int64 v13; // r9
  __int64 v14; // r8
  __int64 v15; // rdx
  __int128 v16[2]; // [rsp+20h] [rbp-38h] BYREF

  memset(v16, 0, sizeof(v16));
  sub_7FF6BF3D1080("%s", (const char *)v16);    // 输入字符串存入v14
  v3 = -1i64;                                   // v3初始值为-1
  do
    ++v3;
  while ( *((_BYTE *)v16 + v3) );               // 0123456789qwertyuiopasdfghjklzx
  if ( v3 != 31 )                               // 限制输入字符串长度为31
  {
    while ( 1 )
      Sleep(0x3E8u);
  }
  v4 = sub_7FF6BF3D1280(v16);
  v5 = name;
  if ( v4 )
  {
    sub_7FF6BF3D15C0(*(_QWORD *)(v4 + 8));
    sub_7FF6BF3D15C0(*(_QWORD *)(v6 + 16));
    v7 = dword_7FF6BF3D57E0;
    v5[dword_7FF6BF3D57E0] = *v8;
    dword_7FF6BF3D57E0 = v7 + 1;
  }
  UnDecorateSymbolName(v5, outputString, 0x100u, 0);
  v9 = -1i64;
  do
    ++v9;
  while ( outputString[v9] );
  if ( v9 == 62 )
  {
    v12 = 0;
    v13 = 0i64;
    do
    {
      v14 = outputString[v13] % 23;
      if ( a1234567890Qwer[v14] != a46200860044218[v13] )
        _exit(v12);
      v15 = outputString[v13] / 23;
      if ( a1234567890Qwer[v15] != a55565653255552[v13] )
        _exit(v12 * v12);
      ++v12;
      ++v13;
    }
    while ( v12 < 62 );
    sub_7FF6BF3D1020("flag{MD5(your input)}\n", v15, v14, v13);
    return 0;
  }
  else
  {
    v10 = sub_7FF6BF3D18A0(std::cout);
    std::ostream::operator<<(v10, sub_7FF6BF3D1A60);
    return -1;
  }
}