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Change Auditor 7.4 - SIEM Integration User Guide

Integrating Change Auditor and SIEM Tools Subscription Management
Adding the PowerShell module Viewing available commands and help Connecting to Change Auditor Managing subscriptions Working with event subscriptions in the client Managing a Splunk integration Managing an IBM QRadar integration Managing a Micro Focus Security ArcSight Logger and Enterprise Security Manager (ESM) integration Managing a Quest IT Security Search integration (Preview) Managing a Syslog integration Managing a Microsoft Sentinel integration
Webhook technical insights

Remove-CAQRadarEventSubscription

Use this command to remove a QRadar subscription.

Table 11. Available parameters
Parameter
Description

-Connection

A connection obtained by using the Connect-CAClient command. See the Change Auditor Command Guide for details.

-Subscription

The PSCAQRadarSubscriptionStatus object that corresponds to the subscription to remove. This parameter is required if the SubscriptionId parameter is not specified.

-SubscriptionId

The ID of the subscription to remove. This parameter is required if the Subscription parameter is not specified. Use the Get-CAQRadarEventSubscriptions command to find the ID.

Example: Remove a QRadar subscription

Remove-CAQRadarEventSubscription -Connection $connection -SubscriptionId $subscriptionId

Managing a Micro Focus Security ArcSight Logger and Enterprise Security Manager (ESM) integration

Managing a Micro Focus Security ArcSight Logger and Enterprise Security Manager (ESM) integration

You can take advantage of the rich data gathered by Change Auditor and use it with ArcSight Logger and ArcSight Enterprise Security Manager (ESM). To begin sending event data, you need to create an ArcSight event subscription with Change Auditor.

To send encrypted Change Auditor events to ArcSight ESM or ArcSight Logger, you must set the ArcSight host and port to match the host and port of the ArcSight connector configured to receive syslog messages over TCP.

When sending encrypted events, communication between the coordinator and connector is unencrypted, however, communication between the connector and ArcSight is encrypted. For improved security:

•
Install the connector on the same computer as the coordinator sending events.
•
Ensure that the coordinator is the only coordinator permitted to send events to the connector using the AllowedCoordinators parameter.

The subscription contains information about where to send the notifications and heartbeats and the event subsystems to include.

•
Working with Change Auditor data within ArcSight
•
Working with ArcSight subscriptions through the client
•
New-CAArcSightEventSubscription
•
Get-CAArcSightEventSubscriptions
•
Set-CAArcSightEventSubscription
•
Remove-CAArcSightEventSubscription

Working with Change Auditor data within ArcSight

The following table describes how Change Auditor event details are mapped to the event details provided in ArcSight’s Common Event Format (CEF) extensions. All other Change Auditor columns not listed here will display as custom columns in ArcSight.

* 
NOTE: Columns that do not contain any event data will not display in ArcSight.

 

Table 12. Mapping information
Change Auditor column
ArcSight column

Subsystem

deviceEventClassId

Event

name

Severity

agentSeverity

Action

categoryBehaviour

Result

categoryOutcome

Server FQDN

deviceHostName

IP Address

deviceAddress

ID

eventId

Origin IPv4

sourceAddress

Origin IPv6

c6a2

Origin

sourceHostName

User SID

sourceUserId

User

sourceUserName

Description

message

Time Detected

endTime

Time Detected

startTime

* 
NOTE: Some Change Auditor events exceed ArcSight’s recommended supported event data length. If a Change Auditor event exceeds this limit, the event data is continued in new ArcSight events to ensure all data is stored.

Working with ArcSight subscriptions through the client

To create an ArcSight subscription
1
From the Administration Tasks, select Configuration | Event Subscriptions.
2
Click Add ArcSight Subscription to open the event subscription wizard.
3
Specify the IPv4 address or FQDN (fully qualified domain name) of the computer where ArcSight Logger or the ArcSight connector is installed.
4
Specify the port number for the ArcSight Logger or the ArcSight connector. The default port is 515.
5
Click Next to select the events to forward based on subsystem and event date. Once the subscription is created the starting event date and time cannot be changed.
•
By default, events start sending after the subscription is created. To change when to begin sending events, click Send events starting and select the desired date and time. The time cannot be more than 30 days prior to the Change Auditor installation date.
•
Select the subsystems to include in the subscription.
6
Click Finish.
To view existing ArcSight subscription details:
1
From the Administration Tasks, select Configuration | Event Subscriptions.
2
Expand the required subscription.
The summary page displays the type of subscription (Target), where the events are being sent, the subscription status (Enabled or Disabled), and when the last event was sent (Last Event).
To edit the ArcSight subscription
1
From the Administration Tasks, select Configuration | Event Subscriptions.
2
Select the required subscription and click Edit.
3
If required, enter the server and port and click Next.
4
If required, add and remove the subsystems included in the subscription.
5
Click Finish.
To remove a subscription
1
From the Administration Tasks, select Configuration | Event Subscriptions.
2
Select the required subscription and click Delete.
3
Confirm the removal.
To enable and disable a subscription
•
When viewing the summary information, select the status column and choose to enable or disable the subscription as required.
To refresh the summary information
1
From the Administration Tasks, select Configuration | Event Subscriptions.
2
Click Refresh.
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