Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people, just like you, are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions

Delphi Get Security Event Logs using FWMIService

Posted on 2014-03-09
Last Modified: 2014-03-21
In Delphi Wish to read security event logs.

This type of code below works with other calls to the   FWMIService

I just can't get the basic function to work..
It Gives an IO Error 105

I have tried it on XP and Win 2008r2
I wish it to work on Advance Servers like 2008r2 and 2012

procedure  GetLogEvents3;
  wbemFlagForwardOnly = $00000020;
  FSWbemLocator : OLEVariant;
  FWMIService   : OLEVariant;
  FWbemObjectSet: OLEVariant;
  FWbemObject   : OLEVariant;
  oEnum         : IEnumvariant;
  iValue        : LongWord;

  FSWbemLocator := CreateOleObject('WbemScripting.SWbemLocator');
  FWMIService   := FSWbemLocator.ConnectServer('localhost', 'root\CIMV2', '', '');
  FWMIService.Security_.ImpersonationLevel:=3; //Impersonate security
  FWbemObjectSet:= FWMIService.ExecQuery('SELECT EventrecordID FROM Win32_NTEventlogFile Where LogFileName="Security"','WQL',wbemFlagForwardOnly);
  oEnum         := IUnknown(FWbemObjectSet._NewEnum) as IEnumVariant;
  while oEnum.Next(1, FWbemObject, iValue) = 0 do
    Form1.LogWin.Lines.add(Format('Rec id %s',[Integer(FWbemObject.EventrecordID)]));
    Form1.LogWin.Lines.add(Format('Address %s',[Integer(FWbemObject.IpAddress)]));

Open in new window

Question by:yahoolane
  • 4
  • 2
LVL 26

Expert Comment

by:Sinisa Vuk
ID: 39916868
Which line throws error? (using debug or other method)
Is this came from:

Maybe your user level have no access (rights) to access security logs. (even if you do impersonate)
LVL 37

Expert Comment

by:Geert Gruwez
ID: 39916905
is wmi service running on the server
i know it's a very basic check ... :)

Author Comment

ID: 39925409
This is the Line that is giving the I/O error 105

FWbemObjectSet:= FWMIService.ExecQuery('SELECT EventrecordID FROM Win32_NTEventlogFile Where LogFileName="Security"','WQL',wbemFlagForwardOnly);

Open in new window

WMI is running because I can do the same code and ask for the OS and other settings
by just changing the line above.   I am running as administrator.

If this is not the answer to getting the security logs, without putting in a trap.
Please point me in the right direction.
Master Your Team's Linux and Cloud Stack

Come see why top tech companies like Mailchimp and Media Temple use Linux Academy to build their employee training programs.

LVL 26

Expert Comment

by:Sinisa Vuk
ID: 39925704
if you put:
FWbemObjectSet:= FWMIService.ExecQuery('SELECT * FROM Win32_NTEventlogFile Where LogFileName="Security"','WQL',wbemFlagForwardOnly);                                           

Open in new window

.... is error still present?

Author Comment

ID: 39933213
I had tried the * earlier, with the same issue.

I understand SQL

it is just not working.

Accepted Solution

yahoolane earned 0 total points
ID: 39933221
This is wonderful if it worked.
but not having any luck with WMI

Tried the JEDI  code

It at lease works but has some short comings.

JvNTEventLog  works for all servers

It data returns funny but it works.

Author Closing Comment

ID: 39944769
JEDI code worked for the problem I had

Examples would be nice.

Featured Post

Free Tool: Subnet Calculator

The subnet calculator helps you design networks by taking an IP address and network mask and returning information such as network, broadcast address, and host range.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article describes relatively difficult and non-obvious issues that are likely to arise when creating COM class in Visual Studio and deploying it by professional MSI-authoring tools. It is assumed that the reader is already familiar with the cla…
This document covers how to connect to SQL Server and browse its contents.  It is meant for those new to Visual Studio and/or working with Microsoft SQL Server.  It is not a guide to building SQL Server database connections in your code.  This is mo…
This video will show you how to get GIT to work in Eclipse.   It will walk you through how to install the EGit plugin in eclipse and how to checkout an existing repository.
With Secure Portal Encryption, the recipient is sent a link to their email address directing them to the email laundry delivery page. From there, the recipient will be required to enter a user name and password to enter the page. Once the recipient …

860 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question