Decode CEFedit

The decode_cef processor decodes Common Event Format (CEF) messages. This processor is available in Filebeat.

Below is an example configuration that decodes the message field as CEF after renaming it to event.original. It is best to rename message to event.original because the decoded CEF data contains its own message field.

processors:
  - rename:
      fields:
        - {from: "message", to: "event.original"}
  - decode_cef:
      field: event.original

The decode_cef processor has the following configuration settings.

Table 1. Decode CEF options

Name Required Default Description

field

no

message

Source field containing the CEF message to be parsed.

target_field

no

cef

Target field where the parsed CEF object will be written.

ecs

no

true

Generate Elastic Common Schema (ECS) fields from the CEF data. Certain CEF header and extension values will be used to populate ECS fields.

ignore_missing

no

false

Ignore errors when the source field is missing.

ignore_failure

no

false

Ignore failures when the source field does not contain a CEF message.

id

no