windows 內核中獲取當前進程路徑

 

BOOLEAN getCurProcPath( PEPROCESS curproc, PUNICODE_STRING uni_ImagePathName )
{
    /*
	wdbg cmd : dt _EPROCESS 0xFFFFFA801AB1D940
	0xFFFFFA801AB1D940 == curproc
	+0x3e8 Peb              : 0x000007f6`f713e000 _PEB
	wdbg cmd : dt _PEB 0x000007f6`f713e000
	+0x020 ProcessParameters : 0x00000000`001f1210 _RTL_USER_PROCESS_PARAMETERS
	wdbg cmd : dt _RTL_USER_PROCESS_PARAMETERS  0x00000000`001f1210
	+0x060 ImagePathName    : _UNICODE_STRING "C:\Windows\Explorer.EXE"
	+0x070 CommandLine      : _UNICODE_STRING "C:\Windows\Explorer.EXE"
	*/
	PPEB		curPeb = NULL;
	ULONG_PTR  ProcessParameters = NULL;

	KAPC_STATE ApcState;

	curPeb = PsGetProcessPeb( curproc );

	KeStackAttachProcess( curproc, &ApcState );   // 切入進程地址空間 
	ProcessParameters = *( ULONG_PTR* )( ( ULONG_PTR )curPeb + 0x20 );
	
	RtlAppendUnicodeToString( uni_ImagePathName, L"\\??\\" );

	RtlAppendUnicodeStringToString( uni_ImagePathName, ( PUNICODE_STRING )( ( ULONG_PTR )ProcessParameters + 0x60 ) );
	KeUnstackDetachProcess( &ApcState );      // 切出進程 
	return TRUE;
}

使用方法如下

    PEPROCESS	curproc =PsGetCurrentProcess();
    UNICODE_STRING uni_ImagePathName = { 0};
    uni_ImagePathName.Length = 0;
	uni_ImagePathName.MaximumLength = MAX_PATH;
	uni_ImagePathName.Buffer = ( PWCH )ExAllocatePoolWithTag( NonPagedPool, MAX_PATH, NULL );
	getCurProcPath( curproc, &uni_ImagePathName );    

同樣的方法，還可以獲取到很多值，根據註釋裏面的方法，慢慢研究吧，朋友！