Open source file monitoring for Windows servers?

[itm]

I'm looking for a free or open source utility which will monitor a Windows 2003 server for changes for critical files (e.g. system files, web sites, etc). Can anyone recommend something that'll do this?
It would also be useful (but not essential) if it were able to monitor the health of ASP.Net websites, server CPU and server disk I/O.
TIA for any suggestions

 

[clade]

Does the Audit tool in 2003 not cover what you are looking for?

 

[itm]

The Audit tool seems to be designed to audit access by specific users. This requirement is for compliance purposes, and is designed to monitor for unauthorised access (i.e. where the user would be difficult to predict). Is the Audit tool an appropriate way of meeting this sort of compliance requirement?

 

[malman]

there are various windows free ones around can't say if any are good or not as I haven't tried them.

google something like "windows file integrity monitoring"

or check this page

http://www.securitywizardry.com/index.php/products/ids-and-ips/file-integrity-checkers.html

 

[sidethink]

The Audit tool seems to be designed to audit access by specific users. This requirement is for compliance purposes, and is designed to monitor for unauthorised access (i.e. where the user would be difficult to predict). Is the Audit tool an appropriate way of meeting this sort of compliance requirement?

Why do 'unauthorised' users have access to your servers or file shares?

You can use the audit logs to detect authentication failures where access to resources is attempted with an account that does not have appropriate rights.

 

[anything I don't mind]

spiceworks can monitor some things but i do not like it. Rather spend some money on the likes of prtg. PRTG can monitor specific files and services etc.

You could also take a look at powershells get-wmiobject. But they will not give you information on unauthorized access.