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Collect Cisco Secure Web Appliance (formerly Web Security Appliance) logs

Parser Version: 7.0

Supported in:

Google secops SIEM

This document explains how you can ingest Cisco Secure Web Appliance (formerly known as Web Security Appliance) logs to Google Security Operations using Bindplane.

Cisco Secure Web Appliance is an on-premises web proxy and security gateway that protects organizations from web-based threats. It provides URL filtering, malware scanning, data loss prevention, and application visibility and control for all HTTP, HTTPS, and FTP traffic. The appliance enforces acceptable use policies and inspects encrypted traffic to detect and block advanced threats.

Before you begin

Make sure you have the following prerequisites:

A Google SecOps instance
Windows Server 2016 or later, or Linux host with systemd
Network connectivity between the Bindplane agent and the Cisco Secure Web Appliance
If running behind a proxy, ensure firewall ports are open per the Bindplane agent requirements
Privileged access to the Cisco Secure Web Appliance web interface

Get Google SecOps ingestion authentication file

Sign in to the Google SecOps console.
Go to SIEM Settings > Collection Agents.
Download the Ingestion Authentication File. Save the file securely on the system where Bindplane will be installed.

Note: This JSON file contains credentials for authenticating the Bindplane agent to Google SecOps.

Get Google SecOps customer ID

Sign in to the Google SecOps console.
Go to SIEM Settings > Profile.
Copy and save the Customer ID from the Organization Details section.

Note: The customer ID is required for configuring the Bindplane agent exporter.

Install the Bindplane agent

Install the Bindplane agent on your Windows or Linux operating system according to the following instructions.

Windows installation

Open Command Prompt or PowerShell as an administrator.

Run the following command:

msiexec /i "https://github.com/observIQ/bindplane-agent/releases/latest/download/observiq-otel-collector.msi" /quiet

Wait for the installation to complete.
Verify the installation by running:
```
sc query observiq-otel-collector
```

The service should show as RUNNING.

Linux installation

Open a terminal with root or sudo privileges.

Run the following command:

sudo sh -c "$(curl -fsSlL https://github.com/observiq/bindplane-agent/releases/latest/download/install_unix.sh)" install_unix.sh

Wait for the installation to complete.

Verify the installation by running:

sudo systemctl status observiq-otel-collector

The service should show as active (running).

Additional installation resources

For additional installation options and troubleshooting, see Bindplane agent installation guide.

Configure the Bindplane agent to ingest syslog and send to Google SecOps

Locate the configuration file

Linux:

sudo nano /status observiq-otel-collector/config.yaml

Windows:

notepad "C:\Program Files\observIQ OpenTelemetry Collector\config.yaml"

Edit the configuration file

Replace the entire contents of config.yaml with the following configuration:

receivers:
  tcplog:
    listen_address: "0.0.0.0:514"

exporters:
  chronicle/cisco_wsa:
    compression: gzip
    creds_file_path: '/etc/bindplane-agent/ingestion-auth.json'
    customer_id: '<customer_id>'
    endpoint: malachiteingestion-pa.googleapis.com
    log_type: CISCO_WSA
    raw_log_field: body

service:
  pipelines:
    logs/cisco_wsa_to_chronicle:
      receivers:
        - tcplog
      exporters:
        - chronicle/cisco_wsa

Configuration parameters

Replace the following placeholders:

Receiver configuration:
- listen_address: IP address and port to listen on:
  - 0.0.0.0 to listen on all interfaces (recommended)
  - Port 514 is the standard syslog port (requires root on Linux; use 1514 for non-root)
Exporter configuration:
- creds_file_path: Full path to ingestion authentication file:
  - Linux: /etc/bindplane-agent/ingestion-auth.json
  - Windows: C:\Program Files\observIQ OpenTelemetry Collector\ingestion-auth.json
- customer_id: Customer ID copied from the Google SecOps console
- endpoint: Regional endpoint URL:
  - US: malachiteingestion-pa.googleapis.com
  - Europe: europe-malachiteingestion-pa.googleapis.com
  - Asia: asia-southeast1-malachiteingestion-pa.googleapis.com
  - See Regional Endpoints for complete list

Save the configuration file

After editing, save the file:
- Linux: Press Ctrl+O, then Enter, then Ctrl+X
- Windows: Click File > Save

Restart the Bindplane agent to apply the changes

To restart the Bindplane agent in Linux:

Run the following command:

sudo systemctl restart observiq-otel-collector

Verify the service is running:

sudo systemctl status observiq-otel-collector

Check logs for errors:

sudo journalctl -u observiq-otel-collector -f

To restart the Bindplane agent in Windows:

Choose one of the following options:
- Command Prompt or PowerShell as administrator:
```
net stop observiq-otel-collector && net start observiq-otel-collector
```
- Services console:
  1. Press Win+R, type services.msc, and press Enter.
  2. Locate observIQ OpenTelemetry Collector.
  3. Right-click and select Restart.
Verify the service is running:
```
sc query observiq-otel-collector
```

Check logs for errors:

type "C:\Program Files\observIQ OpenTelemetry Collector\log\collector.log"

Configure syslog forwarding on Cisco Secure Web Appliance

Sign in to the Cisco Secure Web Appliance web interface.
Go to System Administration > Log Subscriptions.
Click Add Log Subscription.
Select a log type from the Log Type dropdown. For web proxy traffic, select Access Logs.
In the Log Name field, enter a descriptive name for the log subscription (for example, chronicle-access).
Select the access log format:
- Squid - standard Squid-compatible format
- Apache - Apache-compatible format
- W3C Extended - W3C Extended Log File format with configurable fields
Note: The Squid format is the default and most commonly used with the CISCO_WSA parser.
Specify the Maximum File Size before log rollover and the Time Interval between rollovers.
Select the Log Level. The available options are Critical, Warning, Information, Debug, or Trace.
In the Retrieval Method section, select Syslog Push.
Provide the following configuration details:
- Hostname: Enter the IP address or hostname of the Bindplane agent host (for example, 192.168.1.100).
- Port: Enter the port number configured on the Bindplane agent (for example, 514).
- Protocol: Select TCP.
- Maximum Message Size: Enter the maximum size of the log message in bytes to send to the remote syslog server.
- Facility: Select the required syslog facility (for example, Local0).
Note: Syslog Push conforms to RFC 3164.
Click Submit.
Click Commit Changes to apply the configuration.

Note: Repeat steps 3 through 12 to create additional log subscriptions for other log types such as L4 Traffic Monitor Logs, Malware Scanning Logs, or Authentication Logs.
Note: For more information, see Cisco Secure Web Appliance User Guide.

UDM mapping table

Log Field	UDM Mapping	Logic
`_field`	`additional.fields`	Merged
`case_name_label`	`additional.fields`	Merged
`cmf_label`	`additional.fields`	Merged
`dcf_label`	`additional.fields`	Merged
`err_label`	`additional.fields`	Merged
`interaction_mode_label`	`additional.fields`	Merged
`proxy_session_id_label`	`additional.fields`	Merged
`request_size_label`	`additional.fields`	Merged
`total_bytes_label`	`additional.fields`	Merged
`transaction_disposition_label`	`additional.fields`	Merged
`auth_mechanism`	`extensions.auth.auth_details`	Directly mapped
`wsa_hostname`	`intermediary.asset.hostname`	Directly mapped
`wsa_hostname`	`intermediary.hostname`	Directly mapped
`description`	`metadata.description`	Directly mapped
`time`	`metadata.event_timestamp`	Parsed as `MMM dd HH:mm:ss`
`when`	`metadata.event_timestamp`	Parsed as `UNIX`
`has_principal`	`metadata.event_type`	Mapped: `true` → `NETWORK_HTTP`, `true` → `NETWORK_CONNECTION`, `true` → `STATUS_UPDATE`
`has_user`	`metadata.event_type`	Mapped: `true` → `USER_UNCATEGORIZED`
`action`	`metadata.product_event_type`	Directly mapped
`app_proto`	`network.application_protocol`	Directly mapped
`method`	`network.http.method`	Directly mapped
`referer_url`	`network.http.referral_url`	Directly mapped
`returnCode`	`network.http.response_code`	Directly mapped
`user_agent`	`network.http.user_agent`	Directly mapped
`response_size`	`network.received_bytes`	Directly mapped
`bytes_sent`	`network.sent_bytes`	Directly mapped
`size`	`network.sent_bytes`	Directly mapped
`session_id`	`network.session_id`	Directly mapped
`srcip`	`principal.asset.ip`	Merged
`srcip`	`principal.ip`	Merged
`process_id`	`principal.process.pid`	Directly mapped
`_field`	`principal.resource.attribute.labels`	Merged
`key`	`principal.resource.attribute.labels`	Mapped: `server_response` → `_field`
`username`	`principal.user.userid`	Directly mapped
`_security_result`	`security_result`	Merged
`domain`	`target.administrative_domain`	Directly mapped
`tgthost`	`target.asset.hostname`	Directly mapped
`tgtip`	`target.asset.ip`	Merged
`mime_type`	`target.file.mime_type`	Directly mapped
`tgthost`	`target.hostname`	Directly mapped
`tgtip`	`target.ip`	Merged
`tar_city`	`target.location.city`	Directly mapped
`tar_region`	`target.location.country_or_region`	Directly mapped
`tar_state`	`target.location.state`	Directly mapped
`tgtport`	`target.port`	Directly mapped
`kerberos_enctype_label`	`target.resource.attribute.labels`	Merged
`kerberos_keytab_label`	`target.resource.attribute.labels`	Merged
`kerberos_kvno_label`	`target.resource.attribute.labels`	Merged
`server_cert_organization_label`	`target.resource.attribute.labels`	Merged
`target_kerberos_realm_label`	`target.resource.attribute.labels`	Merged
`url`	`target.url`	Directly mapped
N/A	`metadata.event_type`	Constant: `NETWORK_HTTP`
N/A	`metadata.product_name`	Constant: `WSA`
N/A	`metadata.vendor_name`	Constant: `CISCO`
`information`	`event.idm.read_only_udm.additional.fields`	Mapped from changelog
`appname`	`event.idm.read_only_udm.additional.fields`	Mapped from changelog
`facility`	`event.idm.read_only_udm.additional.fields`	Mapped from changelog
`logtime`	`event.idm.read_only_udm.additional.fields`	Mapped from changelog
`policy`	`event.idm.read_only_udm.additional.fields`	Mapped from changelog
`hostname`	`event.idm.read_only_udm.principal.hostname`	Mapped from changelog
`hostname`	`event.idm.read_only_udm.principal.asset.hostname`	Mapped from changelog
`ser_url`	`event.idm.read_only_udm.security_result.description`	Mapped from changelog
`ser_msg`	`event.idm.read_only_udm.security_result.rule_name`	Mapped from changelog
`ser_data`	`event.idm.read_only_udm.security_result.detection_fields`	Mapped from changelog
`priority`	`event.idm.read_only_udm.security_result.severity_details`	Mapped from changelog
`srcport`	`event.idm.read_only_udm.principal.port`	Mapped from changelog
`category`	`event.idm.read_only_udm.security_result.category_details`	Mapped from changelog
`sha_value`	`event.idm.read_only_udm.target.file.sha256`	Mapped from changelog
`cmf`	`event.idm.read_only_udm.additional.fields`	Mapped from changelog
`dcf`	`event.idm.read_only_udm.additional.fields`	Mapped from changelog
`err`	`event.idm.read_only_udm.additional.fields`	Mapped from changelog
`case_name`	`event.idm.read_only_udm.additional.fields`	Mapped from changelog
`total_bytes`	`event.idm.read_only_udm.additional.fields`	Mapped from changelog
`request_size`	`event.idm.read_only_udm.additional.fields`	Mapped from changelog
`transaction_disposition`	`event.idm.read_only_udm.additional.fields`	Mapped from changelog
`application`	`event.idm.read_only_udm.additional.fields`	Mapped from changelog
`bytes_sent`	`event.idm.read_only_udm.network.sent_bytes`	Mapped from changelog
`response_size`	`event.idm.read_only_udm.network.received_bytes`	Mapped from changelog
`description`	`event.idm.read_only_udm.metadata.description`	Mapped from changelog
`referer_url`	`event.idm.read_only_udm.network.http.referral_url`	Mapped from changelog
`wsa_hostname`	`event.idm.read_only_udm.intermediary.hostname`, `event.idm.read_only_udm.intermediary.asset.hostname`	Mapped from changelog

Change Log

View the Change Log for this parser

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