Collect Blue Coat ProxySG logs

Supported in:

Google secops SIEM

This document explains how to ingest Blue Coat ProxySG logs to Google Security Operations using the Bindplane agent.

Blue Coat ProxySG (now Broadcom/Symantec) is a web proxy appliance that generates access logs for web traffic, including HTTP requests, categories, authentication, and security events. The parser normalizes fields and maps them to the Unified Data Model (UDM).

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 Blue Coat ProxySG appliance
If running behind a proxy, ensure firewall ports are open per the Bindplane agent requirements
Administrative access to the Blue Coat ProxySG management console

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 the Bindplane agent 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 IDfrom the Organization Detailssection.

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 Promptor PowerShellas 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  
/etc/bindplane-agent/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/bluecoat_webproxy 
 : 
  
 compression 
 : 
  
 gzip 
  
 creds_file_path 
 : 
  
 '/etc/bindplane-agent/ingestion-auth.json' 
  
 customer_id 
 : 
  
 '<customer_id>' 
  
 endpoint 
 : 
  
 malachiteingestion-pa.googleapis.com 
  
 log_type 
 : 
  
 BLUECOAT_WEBPROXY 
  
 raw_log_field 
 : 
  
 body 
 service 
 : 
  
 pipelines 
 : 
  
 logs/bluecoat_webproxy_to_chronicle 
 : 
  
 receivers 
 : 
  
 - 
  
 tcplog 
  
 exporters 
 : 
  
 - 
  
 chronicle/bluecoat_webproxy

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.
  4. Verify the service is running:
```
 sc query observiq-otel-collector 
```
  5. Check logs for errors:
```
  type 
  
 "C:\Program Files\observIQ OpenTelemetry Collector\log\collector.log" 
 
```

Configure syslog in Blue Coat ProxySG

Sign in to the Blue Coat ProxySGmanagement console.
Go to Maintenance > Event Logging > Syslog.
Click New.
Provide the following configuration details:
- Loghost: Enter the Bindplane agent IP address.
- Click OK.
Select the Enable Syslogcheckbox.
Select Level.
Select the Verbosecheckbox.
Click Apply.

Configure a custom client in Blue Coat ProxySG

Go to Configuration > Access Logging > Logs > Upload Client.
Select Streamingin the Log list.
Select Custom Clientfrom the Client type list.
Click Settings.
Select to configure the primaryor alternatecustom server from the Settingslist.
Provide the following configuration details:
- Host: Enter the hostname or IP address of the upload destination.
- Port: Set to 514.
- Use secure connections (SSL): Set to Off.
- Click OK.
- Click Applyto return to the Upload Clienttab.
For each log format you want to use among main, im, and streaming, complete the following steps:
- Select the log.
- Assign the Upload Clientto be the Customclient.
- Select <No Encryption> and <No Signing> .
- Save the log file as a text file.
- Click Upload Schedule > Upload Type.
- Select Continuouslyfor Upload the access logto stream the access logs.
- Click OK.
Click Apply.

UDM mapping table

Log Field	UDM Mapping	Logic
`@timestamp`	`metadata.event_timestamp`	The timestamp of the event as recorded by the Blue Coat appliance. Parsed from the JSON data.
`application-name`	`target.application`	The name of the application associated with the network traffic. Parsed from the JSON data.
`c-ip`	`principal.asset.ipprincipal.ip`	Client IP address. Parsed from the JSON data.
`c_ip`	`principal.ipprincipal.asset.ip`	Client IP address. Parsed from various log formats.
`c_ip_host`	`principal.hostnameprincipal.asset.hostname`	Client hostname, if available. Parsed from the JSON data.
`cs-auth-group`	principal_user_group_identifiers	Client authentication group. Parsed from the JSON data.
`cs-bytes`	`network.sent_bytes`	Number of bytes sent by the client. Parsed from the JSON data.
`cs-categories`	`security_result.category_details`	Categories assigned to the web request by the Blue Coat appliance. Parsed from the JSON data.
`cs-host`	target_hostname	Hostname requested by the client. Parsed from the JSON data.
`cs-icap-error-details`	`security_result.detection_fields`	ICAP error details from the client side. Parsed from the JSON data, key is "cs-icap-error-details".
`cs-icap-status`	`security_result.description`	ICAP status from the client side. Parsed from the JSON data.
`cs-method`	`network.http.method`	HTTP method used in the request. Parsed from the JSON data.
`cs-threat-risk`	`security_result.risk_score`	Threat risk score assigned by the Blue Coat appliance. Parsed from the JSON data.
`cs-uri-extension`	cs_uri_extension	Extension of the requested URI. Parsed from the JSON data.
`cs-uri-path`	_uri_path	Path of the requested URI. Parsed from the JSON data.
`cs-uri-port`	cs_uri_port	Port of the requested URI. Parsed from the JSON data.
`cs-uri-query`	_uri_query	Query string of the requested URI. Parsed from the JSON data.
`cs-uri-scheme`	_uri_scheme	Scheme of the requested URI (e.g., http, https). Parsed from the JSON data.
`cs-userdn`	principal_user_userid	Client username. Parsed from the JSON data.
`cs-version`	cs_version	HTTP version used by the client. Parsed from the JSON data.
`cs(Referer)`	`network.http.referral_url`	Referrer URL. Parsed from the JSON data.
`cs(User-Agent)`	`network.http.user_agent`	User-agent string. Parsed from the JSON data.
`cs(X-Requested-With)`	`security_result.detection_fields`	Value of the X-Requested-With header. Parsed from the JSON data, key is "cs-X-Requested-With".
`cs_auth_group`	principal_user_group_identifiers	Client authentication group. Parsed from various log formats.
`cs_bytes`	`network.sent_bytes`	Number of bytes sent by the client. Parsed from various log formats.
`cs_categories`	`security_result.category_details`	Categories assigned to the web request. Parsed from various log formats.
`cs_host`	target_hostname	Hostname requested by the client. Parsed from various log formats.
`cs_method`	`network.http.method`	HTTP method used in the request. Parsed from various log formats.
`cs_referer`	`network.http.referral_url`	Referrer URL. Parsed from various log formats.
`cs_threat_risk`	`security_result.risk_score`	Threat risk score assigned by the Blue Coat appliance. Parsed from the KV log format.
`cs_uri`	`target.url`	Full requested URI. Parsed from the KV log format.
`cs_uri_extension`	cs_uri_extension	Extension of the requested URI. Parsed from the KV log format.
`cs_uri_path`	_uri_path	Path of the requested URI. Parsed from various log formats.
`cs_uri_port`	target_port	Port of the requested URI. Parsed from various log formats.
`cs_uri_query`	_uri_query	Query string of the requested URI. Parsed from various log formats.
`cs_uri_scheme`	_uri_scheme	Scheme of the requested URI (e.g., http, https). Parsed from various log formats.
`cs_user`	principal_user_userid	Client username. Parsed from the general log format.
`cs_user_agent`	`network.http.user_agent`	User-agent string. Parsed from various log formats.
`cs_username`	principal_user_userid	Client username. Parsed from various log formats.
`cs_x_forwarded_for`	`_intermediary.ip`	X-Forwarded-For header value. Parsed from the general log format.
`deviceHostname`	`_intermediary.hostname`	Hostname of the Blue Coat appliance. Parsed from the KV log format.
`dst`	ip_target	Destination IP address. Parsed from the KV log format.
`dst_ip`	ip_target	Destination IP address. Parsed from the SSL log format.
`dst_user`	`target.user.userid`	Destination user ID. Parsed from the Proxy Reverse log format.
`dstport`	target_port	Destination port. Parsed from the KV log format.
`dstport`	`target.port`	Destination port. Parsed from the SSL log format.
`exception-id`	_block_reason	Exception ID, indicating a blocked request. Parsed from the KV log format.
`filter-category`	_categories	Category of the filter that triggered the event. Parsed from the KV log format.
`filter-result`	_policy_action	Result of the filter applied to the request. Parsed from the KV log format.
`hostname`	`principal.hostnameprincipal.asset.hostname`	Hostname of the device generating the log. Parsed from the SSL and general log formats.
`isolation-url`	isolation-url	URL related to isolation, if applicable. Parsed from the JSON data.
`ma-detonated`	ma-detonated	Malware detonation status. Parsed from the JSON data.
`page-views`	page-views	Number of page views. Parsed from the JSON data.
`r-ip`	ip_target	Remote IP address. Parsed from the JSON data.
`r-supplier-country`	r-supplier-country	Country of the remote supplier. Parsed from the JSON data.
`r_dns`	target_hostname	Remote DNS name. Parsed from the JSON data.
`r_ip`	ip_target	Remote IP address. Parsed from various log formats.
`r_port`	target_port	Remote port. Parsed from the JSON data.
`risk-groups`	`security_result.detection_fields`	Risk groups associated with the event. Parsed from the JSON data, key is "risk-groups".
`rs-icap-error-details`	`security_result.detection_fields`	ICAP error details from the remote server side. Parsed from the JSON data, key is "rs-icap-error-details".
`rs-icap-status`	rs-icap-status	ICAP status from the remote server side. Parsed from the JSON data.
`rs(Content-Type)`	`target.file.mime_type`	Content-type of the response from the remote server. Parsed from the KV log format.
`rs_content_type`	`target.file.mime_type`	Content-type of the response from the remote server. Parsed from various log formats.
`rs_server`	rs_server	Remote server information. Parsed from the JSON data.
`rs_status`	`_network.http.response_code`	Response status code from the remote server. Parsed from the JSON data.
`r_supplier_country`	`intermediary.location.country_or_region`	Country of the remote supplier. Parsed from the general log format.
`r_supplier_ip`	`intermediary.ip`	IP address of the remote supplier. Parsed from the general log format.
`s-action`	`_metadata.product_event_type`	Action taken by the proxy. Parsed from the KV log format.
`s-ip`	`_intermediary.ip`	Server IP address. Parsed from the KV log format.
`s-source-ip`	`_intermediary.ip`	Source IP address of the server. Parsed from the JSON data.
`s_action`	`_metadata.product_event_type`	Action taken by the proxy. Parsed from various log formats.
`s_ip`	`target.iptarget.asset.ip`	Server IP address. Parsed from various log formats.
`s_ip_host`	`_intermediary.hostname`	Server hostname. Parsed from the JSON data.
`s-supplier-country`	`intermediary.location.country_or_region`	Country of the supplier server. Parsed from the JSON data.
`s-supplier-failures`	`security_result.detection_fields`	Supplier failures. Parsed from the JSON data, key is "s-supplier-failures".
`s-supplier-ip`	`_intermediary.ip`	Supplier server IP address. Parsed from the JSON data.
`s_supplier_ip`	`intermediary.ip`	Supplier server IP address. Parsed from the JSON data.
`s_supplier_name`	`_intermediary.hostname`	Supplier server name. Parsed from the general log format.
`sc-bytes`	`network.received_bytes`	Number of bytes received by the server. Parsed from the KV log format.
`sc-filter-result`	_policy_action	Filter result from the server side. Parsed from the KV log format.
`sc-status`	`_network.http.response_code`	Status code returned by the server. Parsed from the KV log format.
`sc_bytes`	`network.received_bytes`	Number of bytes received by the server. Parsed from various log formats.
`sc_connection`	sc_connection	Server connection information. Parsed from the general log format.
`sc_filter_result`	_policy_action	Filter result from the server side. Parsed from various log formats.
`sc_status`	`_network.http.response_code`	Status code returned by the server. Parsed from various log formats.
`search_query`	`target.resource.attribute.labels`	Search query, if present in the URL. Extracted fromtarget_url, key is "search_query".
`session_id`	`network.session_id`	Session ID. Parsed from the Proxy Reverse log format.
`src`	ip_principal	Source IP address. Parsed from the KV log format.
`src_hostname`	`principal.hostnameprincipal.asset.hostname`	Source hostname. Parsed from the general log format.
`src_ip`	ip_principal	Source IP address. Parsed from the SSL log format.
`srcport`	principal_port	Source port. Parsed from the KV log format.
`src_port`	`principal.port`	Source port. Parsed from the SSL log format.
`s_source_port`	`intermediary.port`	Source port of the server. Parsed from the general log format.
`summary`	`security_result.summary`	Summary of the security result. Parsed from the Proxy Reverse and SSL log formats.
`syslogtimestamp`	syslogtimestamp	Syslog timestamp. Parsed from the KV log format.
`target_application`	`target.application`	Application targeted by the request. Derived fromx_bluecoat_application_nameorapplication-name.
`target_hostname`	`target.hostnametarget.asset.hostname`	Target hostname. Derived fromr_dns,cs-host, or other fields depending on the log format.
`target_port`	`target.port`	Target port. Derived fromr_port,cs_uri_port, ordstportdepending on the log format.
`target_sip`	`target.iptarget.asset.ip`	Target server IP address. Parsed from the general log format.
`target_url`	`target.url`	Target URL. Derived fromtarget_hostname,_uri_path, and_uri_queryorcs_uri.
`time-taken`	`network.session_duration`	Duration of the session or request. Parsed from the KV log format and converted to seconds and nanoseconds.
`time_taken`	`network.session_duration`	Duration of the session or request. Parsed from various log formats and converted to seconds and nanoseconds.
`tls_version`	`network.tls.version`	TLS version used in the connection. Parsed from the SSL log format.
`upload-source`	upload-source	Source of the upload. Parsed from the JSON data.
`username`	principal_user_userid	Username. Parsed from the KV log format.
`verdict`	`security_result.detection_fields`	Verdict of the security analysis. Parsed from the JSON data, key is "verdict".
`wf-env`	wf_env	Environment of the web filtering service. Parsed from the JSON data.
`wf_id`	`security_result.detection_fields`	Web filtering ID. Parsed from the JSON data, key is "wf_id".
`wrong_cs_host`	`principal.hostnameprincipal.asset.hostname`	Incorrectly parsed client hostname, used as principal hostname if it's not an IP address. Parsed from the general log format.
`x-bluecoat-access-type`	x-bluecoat-access-type	Type of access. Parsed from the JSON data.
`x-bluecoat-appliance-name`	`intermediary.application`	Name of the Blue Coat appliance. Parsed from the JSON data.
`x-bluecoat-application-name`	target_application	Name of the application. Parsed from the JSON data.
`x-bluecoat-application-operation`	x_bluecoat_application_operation	Application operation. Parsed from the JSON data.
`x-bluecoat-location-id`	x-bluecoat-location-id	Location ID. Parsed from the JSON data.
`x-bluecoat-location-name`	x-bluecoat-location-name	Location name. Parsed from the JSON data.
`x-bluecoat-placeholder`	`security_result.detection_fields`	Placeholder information. Parsed from the JSON data, key is "x-bluecoat-placeholder".
`x-bluecoat-reference-id`	`security_result.detection_fields`	Reference ID. Parsed from the JSON data, key is "x-bluecoat-reference-id".
`x-bluecoat-request-tenant-id`	x-bluecoat-request-tenant-id	Tenant ID of the request. Parsed from the JSON data.
`x-bluecoat-transaction-uuid`	`metadata.product_log_id`	Transaction UUID. Parsed from the JSON data.
`x-client-agent-sw`	`software.name`	Client agent software. Parsed from the JSON data and merged intoprincipal.asset.software.
`x-client-agent-type`	`principal.application`	Client agent type. Parsed from the JSON data.
`x-client-device-id`	`principal.resource.product_object_id`	Client device ID. Parsed from the JSON data.
`x-client-device-name`	x-client-device-name	Client device name. Parsed from the JSON data.
`x-client-device-type`	x-client-device-type	Client device type. Parsed from the JSON data.
`x-client-os`	`principal.asset.platform_software.platform`	Client operating system. Parsed from the JSON data. If contains "Windows", sets platform to WINDOWS.
`x-client-security-posture-details`	x-client-security-posture-details	Client security posture details. Parsed from the JSON data.
`x-client-security-posture-risk-score`	`security_result.detection_fields`	Client security posture risk score. Parsed from the JSON data, key is "x-client-security-posture-risk-score".
`x-cloud-rs`	`security_result.detection_fields`	Cloud-related remote server information. Parsed from the JSON data, key is "x-cloud-rs".
`x-cs-certificate-subject`	x_cs_certificate_subject	Certificate subject from the client side. Parsed from the JSON data.
`x-cs-client-ip-country`	x-cs-client-ip-country	Client IP country. Parsed from the JSON data.
`x-cs-connection-negotiated-cipher`	`network.tls.cipher`	Negotiated cipher from the client side. Parsed from the JSON data.
`x-cs-connection-negotiated-cipher-size`	`security_result.detection_fields`	Negotiated cipher size from the client side. Parsed from the JSON data, key is "x-cs-connection-negotiated-cipher-size".
`x-cs-connection-negotiated-ssl-version`	`network.tls.version_protocol`	Negotiated SSL version from the client side. Parsed from the JSON data.
`x-cs-ocsp-error`	`security_result.detection_fields`	OCSP error from the client side. Parsed from the JSON data, key is "x-cs-ocsp-error".
`x-cs(referer)-uri-categories`	x-cs(referer)-uri-categories	Referrer URI categories from the client side. Parsed from the JSON data.
`x-data-leak-detected`	`security_result.detection_fields`	Data leak detection status. Parsed from the JSON data, key is "x-data-leak-detected".
`x-exception-id`	x_exception_id	Exception ID. Parsed from the JSON data.
`x-http-connect-host`	x-http-connect-host	HTTP connect host. Parsed from the JSON data.
`x-http-connect-port`	x-http-connect-port	HTTP connect port. Parsed from the JSON data.
`x-icap-reqmod-header(x-icap-metadata)`	x_icap_reqmod_header	ICAP request modification header containing metadata. Parsed from the JSON data.
`x-icap-respmod-header(x-icap-metadata)`	x_icap_respmod_header	ICAP response modification header containing metadata. Parsed from the JSON data.
`x-rs-certificate-hostname`	`network.tls.client.server_name`	Certificate hostname from the remote server side. Parsed from the JSON data.
`x-rs-certificate-hostname-categories`	x_rs_certificate_hostname_category	Certificate hostname categories from the remote server side. Parsed from the JSON data.
`x-rs-certificate-hostname-category`	x_rs_certificate_hostname_category	Certificate hostname category from the remote server side. Parsed from the JSON data.
`x-rs-certificate-hostname-threat-risk`	`security_result.detection_fields`	Certificate hostname threat risk from the remote server side. Parsed from the JSON data, key is "x-rs-certificate-hostname-threat-risk".
`x-rs-certificate-observed-errors`	x_rs_certificate_observed_errors	Certificate observed errors from the remote server side. Parsed from the JSON data.
`x-rs-certificate-validate-status`	`network.tls.server.certificate.subject`	Certificate validation status from the remote server side. Parsed from the JSON data.
`x-rs-connection-negotiated-cipher`	x_rs_connection_negotiated_cipher	Negotiated cipher from the remote server side. Parsed from the JSON data.
`x-rs-connection-negotiated-cipher-size`	`security_result.detection_fields`	Negotiated cipher size from the remote server side. Parsed from the JSON data, key is "x-rs-connection-negotiated-cipher-size".
`x-rs-connection-negotiated-cipher-strength`	x_rs_connection_negotiated_cipher_strength	Negotiated cipher strength from the remote server side. Parsed from the JSON data.
`x-rs-connection-negotiated-ssl-version`	x_rs_connection_negotiated_ssl_version	Negotiated SSL version from the remote server side. Parsed from the JSON data.
`x-rs-ocsp-error`	x_rs_ocsp_error	OCSP error from the remote server side. Parsed from the JSON data.
`x-sc-connection-issuer-keyring`	`security_result.detection_fields`	Connection issuer key ring. Parsed from the JSON data, key is "x-sc-connection-issuer-keyring".
`x-sc-connection-issuer-keyring-alias`	x-sc-connection-issuer-keyring-alias	Connection issuer key ring alias. Parsed from the JSON data.
`x-sr-vpop-country`	`principal.location.country_or_region`	VPOP country. Parsed from the JSON data.
`x-sr-vpop-country-code`	`principal.location.country_or_region`	VPOP country code. Parsed from the JSON data.
`x-sr-vpop-ip`	`principal.ipprincipal.asset.ip`	VPOP IP address. Parsed from the JSON data.
`x-symc-dei-app`	x-symc-dei-app	Symantec DEI application. Parsed from the JSON data.
`x-symc-dei-via`	`security_result.detection_fields`	Symantec DEI via. Parsed from the JSON data, key is "x-symc-dei-via".
`x-tenant-id`	`security_result.detection_fields`	Tenant ID. Parsed from the JSON data, key is "x-tenant-id".
`x-timestamp-unix`	x-timestamp-unix	Unix timestamp. Parsed from the JSON data.
`x_bluecoat_application_name`	target_application	Application name. Parsed from various log formats.
`x_bluecoat_application_operation`	x_bluecoat_application_operation	Application operation. Parsed from various log formats.
`x_bluecoat_transaction_uuid`	`metadata.product_log_id`	Transaction UUID. Parsed from various log formats.
`x_cs_certificate_subject`	x_cs_certificate_subject	Client-side certificate subject. Parsed from the general log format.
`x_cs_client_effective_ip`	ip_principal	Client's effective IP address. Parsed from the general log format.
`x_cs_connection_negotiated_cipher`	`network.tls.cipher`	Client-side negotiated cipher. Parsed from the general log format.
`x_cs_connection_negotiated_ssl_version`	`network.tls.version_protocol`	Client-side negotiated SSL version. Parsed from the general log format.
`x_exception_id`	_block_reason	Exception ID. Parsed from various log formats.
`x_icap_reqmod_header`	x_icap_reqmod_header	ICAP request modification header. Parsed from the general log format.
`x_icap_respmod_header`	x_icap_respmod_header	ICAP response modification header. Parsed from the general log format.
`x_rs_certificate_hostname`	`network.tls.client.server_name`	Remote server certificate hostname. Parsed from the general log format.
`x_rs_certificate_hostname_category`	x_rs_certificate_hostname_category	Remote server certificate hostname category. Parsed from the general log format.
`x_rs_certificate_observed_errors`	x_rs_certificate_observed_errors	Remote server certificate observed errors. Parsed from the general log format.
`x_rs_certificate_validate_status`	`network.tls.server.certificate.subject`	Remote server certificate validation status. Parsed from various log formats.
`x_rs_connection_negotiated_cipher_strength`	x_rs_connection_negotiated_cipher_strength	Remote server negotiated cipher strength. Parsed from the general log format.
`x_rs_connection_negotiated_ssl_version`	x_rs_connection_negotiated_ssl_version	Remote server negotiated SSL version. Parsed from the general log format.
`x_virus_id`	`security_result.detection_fields`	Virus ID. Parsed from various log formats, key is "x-virus-id".

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