今天无意之中在网上看到关于DLL注入的文章,感觉写的真的很好,代码很实用!!
所以Ctrl+C,Ctrl+V!给大家学习学习~~~~
void InjectDLL(DWORD PID,char *Path)
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{
DWORD dwSize;
HANDLE hProcess=OpenProcess(PROCESS_ALL_ACCESS,false,PID);
dwSize=strlen(Path)+1;
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LPVOID lpParamAddress=VirtualAllocEx(hProcess,0,dwSize,PARITY_SPACE,PAGE_EXECUTE_READWRITE);
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WriteProcessMemory(hProcess,lpParamAddress,(PVOID)Path,dwSize,NULL);
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HMODULE hModule=GetModuleHandleA("kernel32.dll");
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LPTHREAD_START_ROUTINE lpStartAddress=(LPTHREAD_START_ROUTINE)GetProcAddress(hModule,"LoadLibraryA");
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HANDLE hThread=CreateRemoteThread(hProcess,NULL,0,lpStartAddress,lpParamAddress,0,NULL);
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WaitForSingleObject(hThread,1000);
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CloseHandle(hThread);
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}
另一种是直接注入代码,代码如下:
//函数名:InjectCode
//功能:封装远程注入的函数
//参数:进程ID
//参数:被注入函数指针<函数名>
//参数:参数
//参数:参数长度
void InjectCode(DWORD dwProcId,LPVOID mFunc, LPVOID Param, DWORD ParamSize)
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{
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HANDLE hProcess;//远程句柄
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LPVOID mFuncAddr;//申请函数内存地址
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LPVOID ParamAddr;//申请参数内存地址
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HANDLE hThread; //线程句柄
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DWORD NumberOfByte; //辅助返回值
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CString str;
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//打开被注入的进程句柄
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hProcess = OpenProcess(PROCESS_ALL_ACCESS,FALSE,dwProcId);
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//申请内存
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mFuncAddr = VirtualAllocEx(hProcess,NULL,128,MEM_COMMIT,PAGE_EXECUTE_READWRITE);
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ParamAddr = VirtualAllocEx(hProcess,NULL,ParamSize,MEM_COMMIT,PAGE_EXECUTE_READWRITE);
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//写内存
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WriteProcessMemory(hProcess,mFuncAddr,mFunc,128, &NumberOfByte);
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WriteProcessMemory(hProcess,ParamAddr,Param,ParamSize, &NumberOfByte);
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//创建远程线程
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hThread = CreateRemoteThread(hProcess,NULL,0,(LPTHREAD_START_ROUTINE)mFuncAddr,
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ParamAddr,0,&NumberOfByte);
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WaitForSingleObject(hThread, INFINITE); //等待线程结束
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//释放申请有内存
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VirtualFreeEx(hProcess,mFuncAddr,128,MEM_RELEASE);
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VirtualFreeEx(hProcess,ParamAddr,ParamSize,MEM_RELEASE);
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//释放远程句柄
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CloseHandle(hThread);
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CloseHandle(hProcess);
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}
posted on 2012-12-09 22:20
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