Viewing data from Arc

The data Arc acquires can be viewed in different places, and in different formats.

Nodes discovered

You can view nodes by their capture device:
  • In Network view > Nodes, check that the capture_device field contains arc
  • In Queries, with the term: nodes | where capture_device include? arc

Asset view information sources

When Arc asset detections populate a field, an Arc dedicated source is used. When Arc uses network monitoring to discover nodes, the source will show as passive. See Nodes discovered.

Node points

When Smart Polling is not enabled, all node points come from Arc. When both Arc and Smart Polling are active in Guardian, you can find nodes that are from Arc:
  • In Arc > Node points
  • In Queries, with the term: node_points | where source.type == arc

Dedicated alerts

In addition to the standard alerts, the alerts shown below come only from Arc:
  • SIGN:SIGMA-RULE
  • SIGN:MALICIOUS-HID
  • SIGN:USB-DEVICE
  • SIGN:USB-FILE-TRANSFER

Users field in alerts

Alerts that are generated from Arc, or involve a node hosting Arc, include information about the logged users. In case of SIGN:SIGMA-RULE alerts, the user associated to the process triggering the Sigma rule is used.