我尝试使用以下代码从我的服务应用程序运行用户模式进程(作为local system
运行。)
用户模式流程的要求是运行而不是提升,但要使其清单中的UIAccess="true"
能够display top-most
windows correctly under Windows 8。
所以我这样做(来自我的服务)来运行我的用户模式过程:
//NOTE: Error checking is omitted for readability
//'dwSessionID' = user session ID to run user-mode process in
//'pUserProcPath' = L"C:\\Program Files (x86)\\Company\\Software\\user_process.exe"
HANDLE hToken = NULL;
WTSQueryUserToken(dwSessionID, &hToken);
HANDLE hToken2;
DuplicateTokenEx(hToken, MAXIMUM_ALLOWED, NULL, SecurityIdentification, TokenPrimary, &hToken2);
LPVOID pEnvBlock = NULL;
CreateEnvironmentBlock(&pEnvBlock, hToken2, FALSE);
STARTUPINFO si;
ZeroMemory(&si, sizeof(STARTUPINFO));
si.cb = sizeof(STARTUPINFO);
si.lpDesktop = L"winsta0\\default";
PROCESS_INFORMATION pi;
ZeroMemory(&pi, sizeof(pi));
//ImpersonateLoggedOnUser(hToken2); //Not necessary as suggested below
PVOID OldRedir;
Wow64DisableWow64FsRedirection(&OldRedir);
BOOL bSuccess = CreateProcessAsUser(
hToken2, // client's access token
pUserProcPath, // file to execute
NULL, // command line
NULL, // pointer to process SECURITY_ATTRIBUTES
NULL, // pointer to thread SECURITY_ATTRIBUTES
FALSE, // handles are not inheritable
NORMAL_PRIORITY_CLASS | CREATE_NEW_CONSOLE | CREATE_UNICODE_ENVIRONMENT, // creation flags
pEnvBlock, // pointer to new environment block
NULL, // name of current directory
&si, // pointer to STARTUPINFO structure
&pi // receives information about new process
);
int nOSError = ::GetLastError();
Wow64RevertWow64FsRedirection(OldRedir);
//RevertToSelf(); //Not necessary as suggested below
CloseHandle(pi.hProcess);
CloseHandle(pi.hThread);
DestroyEnvironmentBlock(pEnvBlock);
CloseHandle(hToken2);
CloseHandle(hToken);
如果UIAccess="false"
的清单中有user_process.exe
,则运行正常。
但如果我这样做:
UIAccess="true"
启用user_process.exe
:
使用我的代码签名证书和
将其放在"C:\Program Files (x86)\Company\Software"
文件夹中。
我得到的是CreateProcessAsUser
因错误ERROR_ELEVATION_REQUIRED
而失败。
有人可以建议如何让它发挥作用吗?
PS。我尝试调整我的服务权限以启用SE_DEBUG_NAME
和SE_TCB_NAME
,但都没有帮助。
PS2。如果我只是双击使用user_process.exe
编译的代理签名的UIAccess="true"
进程,并将其置于C:\Program Files (x86)\Company\Software
文件夹中,则会启动&运行得很好(没有提升。)。
答案 0 :(得分:3)
我找到了答案。这里也适用于遇到它的人:
在DuplicateTokenEx
来电后添加此内容:
HANDLE hToken2;
DuplicateTokenEx(hToken, MAXIMUM_ALLOWED, NULL, SecurityIdentification, TokenPrimary, &hToken2);
//ONLY if requiring UIAccess!
DWORD dwUIAccess = 1;
::SetTokenInformation(hToken2, TokenUIAccess, &dwUIAccess, sizeof(dwUIAccess));