Integrate ArcSight with Google SecOps

This document describes how to integrate ArcSight with Google Security Operations (Google SecOps).

Integration version: 42.0

Security Events Connector prerequisites

This connector works with the reports that are being automatically generated in ArcSight. The connector downloads the generated report, extracts event IDs, and then uses ArcSight API to get more details about events.

Configure Security Events Connector

1. Sign in to the ArcSight console.

2. Navigate to the Reportstab and go to the Querysection.

3. To create a new query, enter the following query name: Google SecOps SOAR Security Events Connector Query .

   Pay attention to the Start Timeand End Timeparameters. It is recommended to query data in one-hour interval, but you can increase the interval, if necessary.

   Example configuration:

   • Name:Google SecOps SOAR Security Events Connector Query
   • Query On:Event
   • Start Time:$Now - 1h
   • End Time:$Now
   • Use as TimeStamp:End Time
   • Row Limit:5000

4. Define Fields for the query. In terms of fields, you need to have the following:

   • Event ID
   • Name
   • Start Time
   • End Time
   • Priority

   Make sure you have End Time ASCin the Order Bycolumn.

5. Set Conditions. This is where you can provide your own filter.

6. Save query.

7. Go to the Reportssection and create a new report. To specify the report, enter the following name: Google SecOps SOAR Security Events Connector Report . Use the same name for the Report Nameparameter of the connector configuration.

8. In the Datatab, select the query that was created in the previous steps as Data Source.

9. In the Parameterstab, change the Report Formatto csv to meet the connector requirements.

10. Save report.

11. Provide the name of the report in the connector configuration of the Report Nameparameter.

12. Do a test run to make sure that connector works as expected.

Configure the Google SecOps shared folder for ArcSight

Google SecOps server

1. Find the UID and GID in the /etc/passwd file:

   cat /etc/passwd | grep scripting

   The example output of the command is as follows:

   scripting:x:1001:1001:/home/scripting:/bin/bash

   The UID is the third field and the GID is the fourth in the command output.

2. Create the script:

   1. Create a file and call it configure_smp_nfs.sh .

   2. Copy the following content into that file.

       #!/bin/bash
      
      #Declare the variables:
      uid= SCRIPTING_USER_UID 
      gid= SCRIPTING_USER_GID 
      arcsight_ip= ARCSIGHT_IP 
      #Install nfs-utils
      yum install nfs-utils -y
      #Create the directory that will be shared
      mkdir /opt/Correlations
      #Change the permissions
      chmod -R 755 /opt/Correlations/
      chown -R scripting:scripting /opt/Correlations/
      #Start the services and enable them to be started at boot time
      systemctl enable rpcbind
      systemctl enable nfs-server
      systemctl enable nfs-lock
      systemctl enable nfs-idmap
      systemctl start rpcbind
      systemctl start nfs-server
      systemctl start nfs-lock
      systemctl start nfs-idmap
      
      #Edit the exports file as follows
      echo "/opt/Correlations/ $arcsight_ip(rw,sync,all_squash,anonuid=$uid,anongid=$gid)">>/etc/exports
      #Restart the NFS service and export the path
      systemctl restart nfs-server
      exportfs -a
      #If FirewallD is running add the next rules:
      firewall-cmd --permanent --zone=public --add-service=nfs
      firewall-cmd --permanent --zone=public --add-service=mountd
      firewall-cmd --permanent --zone=public --add-service=rpc-bind
      firewall-cmd --reload
      setsebool -P nfs_export_all_rw 1 
      

   3. Declare the uid , gid , and arcisght_ip variables according to your environment.

   4. Grant the permissions:

      chmod +x configure_smp_nfs.sh

   5. Run the script:

      ./configure_smp_nfs.sh

ArcSight server

1. Create the script:

   1. Create a file and call it configure_smp_nfs.sh .

   2. Copy the following content into that file.

       #!/bin/bash
      #Declare the variables:
      siemplify_ip= SIEMPLIFY_IP 
      #Install nfs-utils
      yum install nfs-utils -y
      #Start the services and enable them to be started at boot time
      systemctl enable rpcbind
      systemctl enable nfs-server
      systemctl enable nfs-lock
      systemctl enable nfs-idmap
      systemctl start rpcbind
      systemctl start nfs-server
      systemctl start nfs-lock
      systemctl start nfs-idmap
      #If FirewallD is running add the next rules:
      firewall-cmd --permanent --zone=public --add-service=nfs
      firewall-cmd --permanent --zone=public --add-service=mountd
      firewall-cmd --permanent --zone=public --add-service=rpc-bind
      firewall-cmd --reload
      #Create the NFS directory mount point
      mkdir -p /mnt/nfs/var/SiemShare
      #Add the values:
      echo "$siemplify_ip:/opt/Correlations /mnt/nfs/var/SiemShare nfs defaults 0 0">>/etc/fstab
      mount -a 
      

   3. Declare the siemplify_ip variable according to your environment.

Note for the customers who use the old path

The hotfix installer overwrites the /opt/siemplify/Correlations folder permission to siemplifyadmin .

If you are using the old path and are applying the upgrade, then you need to change the permission back to the scripting user with the following steps:

1. Before starting the upgrade, stop the NFS server service:

   _systemctl stop nfs-server_

2. After the upgrade is complete, change the folder permissions:

   _chmod -R 755 /opt/siemplify/Correlations/_

   _chown -R scripting:scripting/opt/siemplify/Correlations/_

   _systemctl start nfs-server_

   _exportfs -a_

3. To confirm that the NFS server is working correctly after the changes, check its status:

   _systemctl status nfs-server_

Create and configure a user for API access

1. Sign in to the ArcSight console.

2. Create a Google_SecOps_API user group and add a Google_SecOps_API user to it. This user will be used by Google SecOps through the ArcSight ESM API.

   1. Go to the Attributestab and set the User Typeattribute to Normal User .

   2. On the Resourcestab, right-click the created user group.

   3. From the menu, choose Edit Access Control.

   4. In the Inspect/Editwindow for the ACL Editor:

      1. In the Eventstab, add the previously created filter, Google_SecOps_Correlations_Filter . You can also add any source filter to grant Google SecOps access.

      2. Use default settings for other tabs.

      3. Click Add, select ArcSight System > Core, and select the All Eventscheckbox.

         It is important to verify that the All Eventscheckbox is selected. The minimum requirement is to include all the correlation events that will be ingested into Google SecOps.

Google Security Operations uses the following main methods when using ArcSight ESM API:

• Core Service: Login , GetSession

• Manager Service: GetSecurityEvents

Network access with ArcSight ESM

To access from Google SecOps to ArcSight ESM, allow traffic over ports 443 (HTTPS) and 8443 (API over SSL), or as configured in your environment.

To access from ArcSight ESM to Google SecOps, allow traffic over ports 445 and 139 (SMB/SAMBA/CIFS), or as configured in your environment.

Integration parameters

For detailed instructions on how to configure an integration in Google SecOps, see Configure integrations .

Use the following parameters to configure the integration:

Actions

Add Entries to Active List

Description

Provides a mechanism to get information from trends outside of, and in addition to, reports. Active lists updated by trends support summary views of information from multiple trends.

Parameters

Run on

This action runs on all entities.

Action results

Script result

Change Case Stage

Description

Change a case's stage. Valid stages are INITIAL, QUEUED, CLOSED, FINAL, and FOLLOW_UP.

Parameters

Run on

This action runs on all entities.

Action results

Script result

Get Activelist Entries

Description

Retrieve ArcSight active list entries and return csv output.

Parameters

Run on

This action runs on all entities.

Action results

Script result

JSON result

  [ 
 "12346e4d96f0a72c42015d69aaf0e8ab , 
 file.txt" 
 , 
  
 "0e0776034e5e096704cd28cbd40cdbb5 , 
 Test.config" 
 ] 
 

Get Query Results

Description

Get query results by query ID. A query can be used as the primary data source for a report, or a trend (based on one query) that can be used as the data source to another query that further refines the initial query result.

Parameters

Use Cases

Add limitation for how many results to return.

Run on

This action runs on all entities.

Action results

Script result

JSON result

  [ 
  
 { 
  
 "Target User Name" 
 : 
  
 "user" 
 , 
  
 "Attacker Address" 
 : 
  
 "192.0.2.1" 
 , 
  
 "External ID" 
 : 
  
 "127" 
 , 
  
 "Name" 
 : 
  
 "A Kerberos authentication ticket (TGT) was requested." 
 , 
  
 "Target Address" 
 : 
  
 "192.0.2.1" 
  
 },{ 
  
 "Target User Name" 
 : 
  
 "user" 
 , 
  
 "Attacker Address" 
 : 
  
 "192.0.2.1" 
 , 
  
 "External ID" 
 : 
  
 "127" 
 , 
  
 "Name" 
 : 
  
 "A Kerberos authentication ticket (TGT) was requested." 
 , 
  
 "Target Address" 
 : 
  
 "192.0.2.1" 
  
 } 
 ] 
 

Get Report

Description

Get a report with dynamic fields. A report is an ArcSight resource that binds data from a query or trend to an existing report template. Once ran, the results of a report can be viewed in the ArcSight consoles viewer panel, saved (archived), or exported in a variety of formats. Reports can be scheduled to run at regular intervals and can be ran on-demand as needed.

Parameters

Run on

This action runs on all entities.

Action results

Script result

Is Value in Activelist Column

Description

Check if specific value is in active list .

Parameters

Run on

This action runs on all entities.

Action results

Script result

Ping

Description

Test Connectivity.

Parameters

Run on

This action runs on all entities.

Action results

Script result

Search

Description

You can start a search at the ArcSight Command Center from the console event channel. Event Complete Search looks for the associated attribute, which is stored in several fields (for example, abc). The search for events searches for a value (for example, abc) stored in the field specified (for example, in the field of name only).

Parameters

Use Cases

Add limitation for how many results to return.

Run on

This action runs on all entities.

Action results

Script result

JSON result

  [ 
  
 { 
  
 "score" 
 : 
  
 1.2440307 
 , 
  
 "uuid" 
 : 
  
 " UUID 
" 
 , 
  
 "uri" 
 : 
  
 "/All_Fields/ArcSight_Foundation/Variables_Library/IPv6/Attacker_IPv6_Address" 
 , 
  
 "name" 
 : 
  
 "Attacker IPv6 Address" 
  
 }, 
  
 { 
  
 "score" 
 : 
  
 1.2440307 
 , 
  
 "uuid" 
 : 
  
 " UUID 
" 
 , 
  
 "uri" 
 : 
  
 "/All_Fields/ArcSight_Foundation/Variables_Library/IPv6/Attacker_IPv6_Address" 
 , 
  
 "name" 
 : 
  
 "Attacker IPv6 Address" 
  
 } 
 ] 
 

Connectors

For detailed instructions on how to configure a connector in Google SecOps, see Configuring the connector .

Arcsight ESM Connector

This guide refers to ArcSight ESM versions 6.9.1 and higher.

ESM rule or case forwarding to Google SecOps

Working with Triggered Rules/Correlations

You will be required to configure ArcSight ESM to forward the latest correlation objects to Google SecOps while you configure Google SecOps to function on ArcSight ESM as a SIEM provider, and also to provide API access to ArcSight ESM through an authorized user.

This feature allows Google SecOps to retrieve any triggered rules within ArcSight ESM in near real-time and forward them to be translated and contextualized as alerts for cases.

Data Flow between Google SecOps and ArcSight ESM

Google SecOps automatically indexes and contextualizes correlations that were forwarded to Google SecOps and were triggered in ArcSight ESM through ArcSight Forwarding Connector module and API access.

Connector severity prioritization

The connector assigns severity with the following prioritization values:

• 1 and 2 - very low
• 3 and 4 - low
• 5 and 6 - medium
• 7 and 8 - high
• 9 and 10 - critical

Connector inputs

Use the following parameters to configure the connector:

Connector rules

The connector supports proxies.

ArcSight - Security Events Connector

Pull correlations from ArcSight. This connector is suitable for SaaS deployment of Google SecOps and is the recommended one for production use.

This connector requires completing the prerequisite steps .

Connector inputs

Use the following parameters to configure the connector:

Connector rules

The connector supports proxies.

Jobs

Close Cases

The job requires the following parameters:

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