Package nozomi/ids Release Notes

Package nozomi/ids Release Notes Version 1.2.0
Parser renaming and Deprecation notice

The old parser nozomi-syslog is deprecated, and replaced by the new parser nozomi-ids. While the old parser will remain available during a tranisition period, all future changes will only go into the new nozomi-ids parser. We recommend switching to the newer parser as soon as possible, to make for the smoothest upgrade. The old nozomi-syslog parser will be removed at some point in the future. In your data, the field #type contains the name of the parser, so any queries you may have that searches for this field need to accomodate this change.

Duplicated vendor fields dropped in new parser

The old nozomi-syslog parser would duplicate certain fields, which the new nozomi-ids parser will not. The fields which were previously duplicated, would be present both under the Vendor namespace (e.g. Vendor.srcIp), and as a field mapped to CPS (e.g. source.ip). If the value of two such fields is byte-for-byte the same, the new parser will no longer preserve the vendor-specific field, but only the CPS field. If the value of the two fields differ, both fields will be preserved. This means the following fields will no longer be present in the parsed data, when using the new parser:

  • Vendor.Id

  • Vendor.Mitre_attack_tactics

  • Vendor.Mitre_attack_techniques

  • Vendor.Risk

  • Vendor.app

  • Vendor.device.product

  • Vendor.device.vendor

  • Vendor.device.version

  • Vendor.dhost

  • Vendor.dmac

  • Vendor.dpt

  • Vendor.dst

  • Vendor.dvc

  • Vendor.dvchost

  • Vendor.event_class_id

  • Vendor.label.Name

  • Vendor.n2os_schema

  • Vendor.proto

  • Vendor.severity

  • Vendor.shost

  • Vendor.smac

  • Vendor.src

  • Vendor.start

  • Vendor.trigger_id

  • Vendor.trigger_type

Misc

  • Sets the fields observer.ip, threat.tactic.name and threat.tactic.id as an arrays.

  • Bug fix: Renamed the field name from observer.address to observer.hostname to ensure compliance with CPS standard.

Package nozomi/ids Release Notes Version 1.1.0

  • Sets the event categorization fields: event.category, event.type and event.outcome based on the message data coming from the source.

  • Improves the field extraction and performance.

  • Bumps the minimum LogScale version to 1.142 to support assertions in yaml files.

Package nozomi/ids Release Notes Version 1.0.0

  • Adds new event.module and Cps.version fields

  • Removes the Product field

  • Sets following tags: Cps.version, Vendor, ecs.version, event.dataset, event.kind, event.module, event.outcome, observer.type