Event Details
Operating System->Microsoft Windows->Built-in logs->Windows 2000-2003->Security Log->Detailed Tracking->EventID 615 - IPSEC PolicyAgent Service [Win 2000]
EventID 615 - IPSEC PolicyAgent Service [Win 2000]
Indicates a change to the IPsec policy.

Should be investigated when they occur outside of a system startup.

Find more information about this event on ultimatewindowssecurity.com.

Corresponding events on other OS versions:

Windows 2003 / XP
In Windows 2003 /XP this event moves to the category "Policy Change", and "IPSec Policy Agent" is renamed to "IPSec Services".
        Event Type:     Success Audit
        Event Source:   Security
        Event Category: Detailed Tracking
        Event ID:       615
        Date:           10/26/2009
        Time:           07:41:25
        User:           BUILTIN\Administrators
        Computer:       DC1
        IPSEC PolicyAgent Service: Service is shutting down.
Log Type: Windows Event Log
 Uniquely Identified By:
Log Name: Security
Filtering Field Equals to Value
OSVersion Windows 2000
Category Detailed Tracking
Source Security
EventId 615
Field Matching
FieldDescriptionStored inSample Value
DateTime Date/Time of event origination in GMT format. DateTime 10.10.2000 19:00:00
Source Name of an Application or System Service originating the event. Source Security
Type Warning, Information, Error, Success, Failure, etc. Type Success
User Domain\Account name of user/service/computer initiating event. User RESEARCH\Alebovsky
Computer Name of server workstation where event was logged. Computer DC1
EventID Numerical ID of event. Unique within one Event Source. EventId 576
Description The entire unparsed event message. Description Special privileges assigned to new logon.
Log Name The name of the event log (e.g. Application, Security, System, etc.) LogName Security
Category A name for a subclass of events within the same Event Source. Category Logon/Logoff
IPSec Policy Agent Service Displays event description from the IPSec Policy Agent Service InsertionString1 IPSEC PolicyAgent Service: Service is shutting down.
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