如何在C#中确定进程的所有者？

Question

我正在寻找名为"MyApp.exe"的进程,我想确保获得特定用户拥有的进程.

我使用以下代码获取进程列表:

Process[] processes = Process.GetProcessesByName("MyApp");

这给了我一个进程列表,但是在Process类中似乎没有办法确定谁拥有该进程？有关如何做到这一点的任何想法？

Answer 1

您可以使用WMI让用户拥有某个进程.要使用WMI,您需要添加System.Management.dll对项目的引用.

按进程ID:

public string GetProcessOwner(int processId)
{
    string query = "Select * From Win32_Process Where ProcessID = " + processId;
    ManagementObjectSearcher searcher = new ManagementObjectSearcher(query);
    ManagementObjectCollection processList = searcher.Get();

    foreach (ManagementObject obj in processList)
    {
        string[] argList = new string[] { string.Empty, string.Empty };
        int returnVal = Convert.ToInt32(obj.InvokeMethod("GetOwner", argList));
        if (returnVal == 0)
        {
            // return DOMAIN\user
            return argList[1] + "\\" + argList[0];
        }
    }

    return "NO OWNER";
}

按进程名称(仅查找第一个进程,相应地调整):

public string GetProcessOwner(string processName)
{
    string query = "Select * from Win32_Process Where Name = \"" + processName + "\"";
    ManagementObjectSearcher searcher = new ManagementObjectSearcher(query);
    ManagementObjectCollection processList = searcher.Get();

    foreach (ManagementObject obj in processList)
    {
        string[] argList = new string[] { string.Empty, string.Empty };
        int returnVal = Convert.ToInt32(obj.InvokeMethod("GetOwner", argList));
        if (returnVal == 0)
        {
            // return DOMAIN\user
            string owner = argList[1] + "\\" + argList[0];
            return owner;       
        }
    }

    return "NO OWNER";
}

Answer 2

由于WMI并不总是快速检索信息的方式,因此这是本机P/Invoke的方式:

返回值是null不成功的.要获取在SYSTEM用户下运行的进程的名称,您需要以管理员身份执行此代码.

private static string GetProcessUser(Process process)
{
    IntPtr processHandle = IntPtr.Zero;
    try
    {
        OpenProcessToken(process.Handle, 8, out processHandle);
        WindowsIdentity wi = new WindowsIdentity(processHandle);
        string user = wi.Name;
        return user.Contains(@"\") ? user.Substring(user.IndexOf(@"\") + 1) : user;
    }
    catch
    {
        return null;
    }
    finally
    {
        if (processHandle != IntPtr.Zero)
        {
            CloseHandle(processHandle);
        }
    }
}

[DllImport("advapi32.dll", SetLastError = true)]
private static extern bool OpenProcessToken(IntPtr ProcessHandle, uint DesiredAccess, out IntPtr TokenHandle);
[DllImport("kernel32.dll", SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
private static extern bool CloseHandle(IntPtr hObject);

Answer 3

这是非C#扬声器的VB版本:

Function GetProcessOwner(ProcessName As String) As String
    Dim query = "Select * from Win32_Process Where Name = """ + ProcessName + """"
    Dim searcher = New ManagementObjectSearcher(query)
    Dim processList = searcher.Get()

    For Each obj As ManagementObject In processList
      Dim argList As String() = {String.Empty, String.Empty}
      Dim returnVal = Convert.ToInt32(obj.InvokeMethod("GetOwner", argList))
      If returnVal = 0 Then
        ' return DOMAIN\user
        Dim owner = argList(1) + "\\" + argList(0)
        Return owner
      End If
    Next

    Return "NO OWNER"
  End Function

  Function GetProcessOwner(processId As Integer) As String
    Dim query = "Select * From Win32_Process Where ProcessID = " & processId
    Dim searcher = New ManagementObjectSearcher(query)
    Dim processList = searcher.Get()

    For Each obj As ManagementObject In processList
      Dim argList As String() = {String.Empty, String.Empty}
      Dim returnVal = Convert.ToInt32(obj.InvokeMethod("GetOwner", argList))
      If returnVal = 0 Then
        ' return DOMAIN\user
        Return argList(1) + "\\" + argList(0)
      End If
    Next

    Return "NO OWNER"
  End Function