查询 Win32_NTLogEvent WHERE Logfile = 'Security'仅适用于远程计算机

Question

我在使用下面的代码从本地计算机的安全日志事件中检索数据时遇到问题。我在多台电脑上进行了测试：本地机器是windows xp sp3。查询没有错误，但返回0条记录。对于远程机器来说它工作得很好 任何人都可以给我一个解决方案吗？ 这是代码：

using System;
using System.Management;
using System.Windows.Forms;

namespace WMISample
{
    public class MyWMIQuery
    {
        public static void Main()
        {
            try
            {
                string[] arrComputers = {".","clientN"};
                foreach (string strComputer in arrComputers)
                {
                    Console.WriteLine("==========================================");
                    Console.WriteLine("Computer: " + strComputer);
                    Console.WriteLine("==========================================");

                    ManagementObjectSearcher searcher = 
                        new ManagementObjectSearcher(
                        "\\\\" + strComputer + "\\root\\CIMV2", 
                        "SELECT * FROM Win32_NTLogEvent WHERE Logfile = 'Security'"); 

                    foreach (ManagementObject queryObj in searcher.Get())
                    {
                        Console.WriteLine("-----------------------------------");
                        Console.WriteLine("Win32_NTLogEvent instance");
                        Console.WriteLine("-----------------------------------");
                        Console.WriteLine("RecordNumber: {0}", queryObj["RecordNumber"]);
                        Console.WriteLine("SourceName: {0}", queryObj["SourceName"]);
                        Console.WriteLine("TimeGenerated: {0}", queryObj["TimeGenerated"]);
                    }
                }
            }
            catch(ManagementException err)
            {
                MessageBox.Show("An error occurred while querying for WMI data: " + err.Message);
            }
        }
    }
}

---

我知道在 vbs 中使用 wmi 查询的模拟级别是有效的。

    Set objWMI = GetObject("winmgmts:" _
& "{impersonationLevel=impersonate,(Security)}!\\" _
& strComputer & "\root\cimv2")
Set colLoggedEvents = objWMI.ExecQuery _
("Select * from Win32_NTLogEvent Where Logfile = 'Security'" )

所以我必须用c#翻译。

Answer 1

好的，我使用我的代码关闭这个问题。
代码是：

     using System; 
        using System.Management; 
        namespace WMISample 
        {  
            public class MyWMIQuery 
            { 
                public static void Main() 
                { 
                    try 
                    { 
                        ConnectionOptions oConn = new ConnectionOptions();
                        oConn.Impersonation = ImpersonationLevel.Impersonate;
                        oConn.EnablePrivileges = true;

                        string[] arrComputers = {".","clientN"}; 
                        foreach (string strComputer in arrComputers) 
                        { 
                            Console.WriteLine("=========================================="); 
                            Console.WriteLine("Computer: " + strComputer); 
                            Console.WriteLine("=========================================="); 
                            ManagementObjectSearcher searcher = new ManagementObjectSearcher
                            (
                               new ManagementScope("\\\\" + strComputer + "\\root\\CIMV2",  oConn),
                               new ObjectQuery( @"SELECT * FROM Win32_NTLogEvent WHERE Logfile = 'Security'")
                            );


                            foreach (ManagementObject queryObj in searcher.Get()) 
                            { 
                                Console.WriteLine("-----------------------------------"); 
                                Console.WriteLine("Win32_NTLogEvent instance"); 
                                Console.WriteLine("-----------------------------------"); 
                                Console.WriteLine("RecordNumber: {0}", queryObj["RecordNumber"]); 
                                Console.WriteLine("SourceName: {0}", queryObj["SourceName"]); 
                                Console.WriteLine("TimeGenerated: {0}", queryObj["TimeGenerated"]); 
                            } 
                        } 
                    } 
                    catch(ManagementException err) 
                    { 
                        MessageBox.Show("An error occurred while querying for WMI data: " + err.Message); 
                    } 
                } 
            } 
        } 

---

Answer 2

尝试使用本地计算机名而不是“.”。因此，

string[] arrComputers = {".","clientN"};

您可以使用

string[] arrComputers = { Environment.GetEnvironmentVariable("computername"), "clientN" };