In XQL, which operator is used for field aliasing?

In XQL, the AS operator is used to create an alias, which is a temporary, alternative name for a field in the query results. This is most commonly used within the fields stage to rename columns for clarity or to simplify complex field names in the output. For example, fields actorprocessimagepath AS Process would rename the actorprocessimagepath column to Process in the results table, making the output more readable.

=: The equals sign is a comparison operator used for checking equality in filter conditions, not for aliasing. IN: This operator is used in filter conditions to check if a field's value exists within a specified list of values. BY: This keyword is used in conjunction with aggregation stages, such as comp count() BY field, to specify the grouping field.

1. Palo Alto Networks. (n.d.). Cortex XDR Query Language (XQL) Reference. Cortex XDR Docs. Retrieved from https://docs.paloaltonetworks.com/cortex/cortex-xdr/cortex-xdr-pro-admin/investigation-and-response/xql-search. "To rename a field, use the AS keyword followed by the new field name." (Section: Query Stages > fields)

2. Palo Alto Networks. (n.d.). Query Stages. Cortex XDR Docs. Retrieved from https://docs.paloaltonetworks.com/cortex/cortex-xdr/cortex-xdr-pro-admin/investigation-and-response/query-stages. The documentation for the fields stage explicitly shows the syntax: fields [AS ], ... demonstrating the use of AS for aliasing.