#include
#include
#include
#include
using namespace std;
#define BLOCKMAXSIZE 409600//每次读取内存的最大大小
BYTE* MemoryData;//每次将读取的内存读入这里
short Next[260];
//特征码转字节集
WORD GetTzmArray (char* Tzm, WORD* TzmArray)
{
int len = 0;
WORD TzmLength = strlen (Tzm) / 3 + 1;
for (int i = 0; i < strlen (Tzm); )//将十六进制特征码转为十进制
{
char num[2];
num[0] = Tzm[i++];
num[1] = Tzm[i++];
i++;
if (num[0] != {
int sum = 0;
WORD a[2];
for (int i = 0; i < 2; i++)
{
if (num[i] >= {
a[i] = num[i] - }
else if (num[i] >= {
a[i] = num[i] - 87;
}
else if (num[i] >= {
a[i] = num[i] - 55;
}
}
sum = a[0] * 16 + a[1];
TzmArray[len++] = sum;
}
else
{
TzmArray[len++] = 256;
}
}
return TzmLength;
}
//获取Next数组
void GetNext (short* next, WORD* Tzm, WORD TzmLength)
{
//特征码 (字节集)的每个字节的范围在0-255 (0-FF)之间,256用来表示问号,到260是为了防止越界
for (int i = 0; i < 260; i++)
next[i] = -1;
for (int i = 0; i < TzmLength; i++)
next[Tzm[i]] = i;
}
//搜索一块内存
void SearchMemoryBlock (HANDLE hProcess, WORD* Tzm, WORD TzmLength, unsigned __int64 StartAddress, unsigned long size, vector& ResultArray)
{
if (!ReadProcessMemory (hProcess, (LPCVOID)StartAddress, MemoryData, size, NULL))
{
return;
}
for (int i = 0, j, k; i < size;)
{
j = i; k = 0;
for (; k < TzmLength && j < size && (Tzm[k] == MemoryData[j] || Tzm[k] == 256); k++, j++);
if (k == TzmLength)
{
ResultArray.push_back (StartAddress + i);
}
if ( (i + TzmLength) >= size)
{
return;
}
int num = Next[MemoryData[i + TzmLength]];
if (num == -1)
i += (TzmLength - Next[256]);//如果特征码有问号,就从问号处开始匹配,如果没有就i+=-1
else
i += (TzmLength - num);
}
}
//搜索整个程序
int SearchMemory (HANDLE hProcess, char* Tzm, unsigned __int64 StartAddress, unsigned __int64 EndAddress, int InitSize, vector& ResultArray)
{
int i = 0;
unsigned long BlockSize;
MEMORY_BASIC_INFORMATION mbi;
WORD TzmLength = strlen (Tzm) / 3 + 1;
WORD* TzmArray = new WORD[TzmLength];
GetTzmArray (Tzm, TzmArray);
GetNext (Next, TzmArray, TzmLength);
//初始化结果数组
ResultArray.clear ();
ResultArray.reserve (InitSize);
while (VirtualQueryEx (hProcess, (LPCVOID)StartAddress, &mbi, sizeof (mbi)) != 0)
{
//获取可读可写和可读可写可执行的内存块
if (mbi.Protect == PAGE_READWRITE || mbi.Protect == PAGE_EXECUTE_READWRITE)
{
i = 0;
BlockSize = mbi.RegionSize;
//搜索这块内存
while (BlockSize >= BLOCKMAXSIZE)
{
SearchMemoryBlock (hProcess, TzmArray, TzmLength, StartAddress + (BLOCKMAXSIZE * i), BLOCKMAXSIZE, ResultArray);
BlockSize -= BLOCKMAXSIZE; i++;
}
SearchMemoryBlock (hProcess, TzmArray, TzmLength, StartAddress + (BLOCKMAXSIZE * i), BlockSize, ResultArray);
}
StartAddress += mbi.RegionSize;
if (EndAddress != 0 && StartAddress > EndAddress)
{
return ResultArray.size ();
}
}
free (TzmArray);
return ResultArray.size ();
}
int main ()
{
//初始化MemoryData大小
MemoryData = new BYTE[BLOCKMAXSIZE];
DWORD pid=0;
vector ResultArray;
cout << "请输入进程ID:" << endl;
cin >> pid;
//通过进程ID获取进程句柄
HANDLE hProcess = OpenProcess (PROCESS_ALL_ACCESS, false, pid);
int start = clock ();
SearchMemory (hProcess, (char*)"FF 3F FF ?? FF F2", 0x410000, 0xFFFFFFFF, 30, ResultArray);
int end = clock ();
cout << "用时:" << end-start << "毫秒"<<endl;
cout << "搜索到" << ResultArray.size () << "个结果" << endl;
for (vector::iterator it = ResultArray.begin (); it != ResultArray.end (); it++)
{
printf ("%x\n", *it);
}
return 0;
}
</endl;