using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(?ms)Target Account:.*Security ID:\s+(?<Security_ID>[^ ]*)";
string input = @" LogName=Security
SourceName=Microsoft Windows security auditing.
EventCode=4738
EventType=0
Type=Information
ComputerName=server.domain.com
TaskCategory=User Account Management
OpCode=Info
RecordNumber=00000000
Keywords=Audit Success
Message=A user account was changed.
Subject:
Security ID: DOMAIN\account_1
Account Name: account_1
Account Domain: DOMAIN
Logon ID: 0000000
Target Account:
Security ID: DOMAIN\account_2
Account Name: account_2
Account Domain: DOMAIN";
foreach (Match m in Regex.Matches(input, pattern))
{
Console.WriteLine("'{0}' found at index {1}.", m.Value, m.Index);
}
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for C#, please visit: https://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regex(v=vs.110).aspx