새로운 미용실을 가다.

Recently, I changed the lambda code to capture a local variable, and then the code didn't compile.
What I found was that only a lambda without capture can be converted to a function pointer.

[expr.prim.lambda]

Usually, the parent process is the process that creats the new process. But you can change this behavior by setting STARTUPINFOEX.lpAttributeList.

HANDLE hParentProcess{ nullptr };
LPPROC_THREAD_ATTRIBUTE_LIST attrList{ nullptr };


// Initialize LPPROC_THREAD_ATTRIBUTE_LIST
hParentProcess = OpenProcess(PROCESS_CREATE_PROCESS, FALSE, parentProcessId);

SIZE_T attrListSize = 0;
InitializeProcThreadAttributeList(nullptr, 1, 0, &attrListSize);
attrList = (LPPROC_THREAD_ATTRIBUTE_LIST)malloc(attrListSize);

InitializeProcThreadAttributeList(attrList, 1, 0, &attrListSize);

UpdateProcThreadAttribute(attrList, 0, PROC_THREAD_ATTRIBUTE_PARENT_PROCESS, &hParentProcess,
	sizeof(hParentProcess), nullptr, nullptr);


// Set LPPROC_THREAD_ATTRIBUTE_LIST to the STARTUPINFOEX
STARTUPINFOEX  si = { sizeof(si) };
si.StartupInfo.cb = sizeof(si);
si.lpAttributeList = attrList;

PROCESS_INFORMATION pi = { 0 };


CreateProcess(nullptr, argv[1], nullptr, nullptr, FALSE, EXTENDED_STARTUPINFO_PRESENT, nullptr, nullptr, &si.StartupInfo, &pi);

If you want to open 'This PC\All Control Panel Items\Programs and Features'
First you need to convert each items to GUID

• This PC -> 20d04fe0-3aea-1069-a2d8-08002b30309d
• All Control Panel Items -> 21ec2020-3aea-1069-a2dd-08002b30309d
• Programs and Features -> 7b81be6a-ce2b-4676-a29e-eb907a5126c5

Then launch exporer.exe with /separate paramter

For example:

C:\Windows\explorer.exe /separate, ::{20d04fe0-3aea-1069-a2d8-08002b30309d}\::{21ec2020-3aea-1069-a2dd-08002b30309d}\::{7b81be6a-ce2b-4676-a29e-eb907a5126c5}

Then the above process will be terminated and the below process shows up with ' Programs and Features'

C:\WINDOWS\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding

If you want to launch explorer.exe as your descendant process, there is a way

1. Run: C:\WINDOWS\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
   • This process is your descendant process and it is invisible.
2. Run: C:\Windows\explorer.exe /separate, ::{20d04fe0-3aea-1069-a2d8-08002b30309d}\::{21ec2020-3aea-1069-a2dd-08002b30309d}\::{7b81be6a-ce2b-4676-a29e-eb907a5126c5}
   • This process will be terminated and 'Programs and Features' will be showed in the previous explorer.exe.
   • But if there is one more explorer.exe /factory, there is no gurantee which one shows 'Programs and Features'.

It is almost impossible to prevent administrators from stopping services.
But there are some ways to make it difficult for them.

1. Ignoring the stop notification

SetServiceStatus

If you call this function without 'SERVICE_ACCEPT_STOP' in dwControlsAccepted member in SERVICE_STAUS structure, the service ignores the stop notification.

1. Chaning the access control on the service

// Get an acl of the service

  ATL::CDacl dacl;
  bool result = ATL::AtlGetDacl(L"serviceName", SE_SERVICE, &dacl);


// Traverse all access masks

  for (UINT index = 0; index < count; ++index) {
    CSid aceSid;
    ACCESS_MASK mask = 0;
    BYTE type = 0;
    BYTE flags = 0;
    GUID objectType;
    GUID inheritedObjectType;
    dacl.GetAclEntry(index, &aceSid, &mask, &type, &flags, &objectType, &inheritedObjectType);

}

// Change & Set acess mask

// Remove old ace
dacl.RemoveAce(speciifcIndex);
// Remove permissions(SERVICE_CHANGE_CONFIG & SERVICE_STOP)
specificMask &= ~SERVICE_CHANGE_CONFIG; 
specificMask &= ~SERVICE_STOP;
// Add new ace
 result = dacl.AddAllowedAce(specificSid, specificMask, specificFlags);

NtCreateToken

Return Codes

• STATUS_SUCCESS - Indicates the operation was successful.
• STATUS_INVALID_OWNER - Indicates the ID provided to be assigned
          as the default owner of the token does not have an attribute
          indicating it may be assigned as an owner.
• STATUS_INVALID_PRIMARY_GROUP - Indicates the group ID provided
          via the PrimaryGroup parameter was not among those assigned
          to the token in the Groups parameter.
• STATUS_BAD_IMPERSONATION_LEVEL - Indicates no impersonation level
          was provided when attempting to create a token of type
          TokenImpersonation.

createprocess-windows

How can I get a signature for a Windows system that will remain unchanged even if the user reinstalls Windows?

// appwiz.cpl is COM server related to (UnInstall or Change a program)
#include <shappmgr.h>
#include <iostream>
#import <appwiz.cpl>

// If this import gets into trobule, you could solve the problem by using #import directives
/*
#import <appwiz.cpl> rename("tag_inner_PROPVARIANT", "_tag_inner_PROPVARIANT") \
inject_statement("typedef struct _LARGE_INTEGER2 { LONGLONG QuadPart; } LARGE_INTEGER2;") \
inject_statement("typedef struct _ULARGE_INTEGER2 { ULONGLONG QuadPart;} ULARGE_INTEGER2;") \
rename("_LARGE_INTEGER", " _LARGE_INTEGER2") \
rename("_ULARGE_INTEGER", "_ULARGE_INTEGER2")
*/

int main()
{

	::CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);

	class __declspec(uuid("{352EC2B7-8B9A-11D1-B8AE-006008059382}")) AppWiz;
	static const CLSID CLSID_AppWiz = __uuidof(AppWiz);

	SHAPPMGRPLib::IShellAppManagerPtr spShellAppManaager;
	HRESULT hr = spShellAppManaager.CreateInstance(CLSID_AppWiz, NULL, CLSCTX_INPROC_SERVER);

	SHAPPMGRPLib::IEnumInstalledAppsPtr spEnumInstalledApps;
	hr = spShellAppManaager->EnumInstalledApps(&spEnumInstalledApps);

	SHAPPMGRPLib::IInstalledAppPtr spInstalledApp;
	SHAPPMGRPLib::IInstalledApp* pInstalledApp;
	
	while (S_OK == (hr = spEnumInstalledApps->Next(&pInstalledApp))) {

		spInstalledApp = pInstalledApp;


		SHAPPMGRPLib::_AppInfoData data = { 0 };
		data.cbSize = sizeof(SHAPPMGRPLib::_AppInfoData);
		data.dwMask = AIM_DISPLAYNAME | AIM_VERSION | AIM_PUBLISHER | AIM_INSTALLDATE;

		hr = spInstalledApp->GetAppInfo(&data);

		// You have to check the validation of the data before using it.

		std::wcout << "Name: " << data.pszDisplayName << " ver: " << data.pszVersion
			<< " publisher: " << data.pszPublisher << " installedOn: " << data.pszInstallDate << std::endl;

	}

	::CoUninitialize();

	return 0;
}

LLDB Debugging Guide

Foreground activation permission is like love: You can’t steal it, it has to be given to you

Windows 8 App Container Security Notes - Part 1