解析事件日志条目的消息字段c#

Question

我如何使用 C# 解析事件日志消息或替换字符串的特定字段。即我需要从 ID 为 4624 的安全事件日志中解析 "Workstation Name"，示例日志在下面给出，在此处输入代码

Subject:
Security ID:        S-1-0-0
Account Name:       -
Account Domain:     -
Logon ID:       0x0

Logon Type:         0

Impersonation Level:        -

New Logon:
    Security ID:        S-1-5-18
    Account Name:       SYSTEM
    Account Domain:     NT AUTHORITY
    Logon ID:       0x3e7
    Logon GUID:     {00000000-0000-0000-0000-000000000000}

Process Information:
    Process ID:     0x4
    Process Name:       

Network Information:
    Workstation Name:   - some data
    Source Network Address: -
    Source Port:        -

Detailed Authentication Information:
    Logon Process:      -
    Authentication Package: -
    Transited Services: -
    Package Name (NTLM only):   -
    Key Length:     0

我认为对于具有相同事件 ID 的每个事件，替换字符串的顺序和计数都是相同的，但长度不同。那么我如何将此字符串解析为相应的对象/或提取特定字段

Answer 1

如果您需要提取工作站名称字段的值，最简单的方法之一就是使用正则表达式

string fieldName = "Workstation Name";
var expression = new Regex(string.Format(@"\s*{0}:\s*-\s*(.+)\r\n", fieldName));
Match match = expression.Match(fileText);

if (match.Success)
{
  string workstationName = match.Groups[1];
  ...
}

解析事件日志条目的消息字段c#

Parsing of Message field of Event Log entry c#

.net

c#

event-log