Telemetry

Workshop provides powerful telemetry capabilities for analyzing Santa security events. The telemetry system integrates with Santa’s telemetry collection to store and enable querying of detailed endpoint activity data in cloud storage buckets.

Querying Telemetry

Table Naming Convention

Workshop uses dynamic table names:

Event Types: execution, fork, close, file_access, etc. For complete details on event types and their data, see the Schema page.

:::warning Host ID Format

When using host UUIDs with dashes in table names, replace dashes with underscores (e.g., a1b2c3d4-e5f6-g7h8 becomes a1b2c3d4_e5f6_g7h8) to avoid SQL syntax errors.

:::

SQL Examples

-- Count total execution events this year
SELECT COUNT(*) FROM execution_2025;

-- Recent execution events for a specific host
SELECT *
FROM execution_20250125_a1b2c3d4_e5f6_g7h8
LIMIT 10;

-- Execution events for a specific binary
SELECT *
FROM execution_20250125
WHERE Target.Executable.Hash.Hash = 'sha256-hash-here'
LIMIT 10;

-- Find processes with dangerous entitlements
SELECT EventTime, Hostname, Instigator.Executable.Path
FROM execution_20250125
WHERE list_contains(
  list_transform(EntitlementInfo.Entitlements, x -> x.Key),
  'com.apple.security.cs.allow-jit'
)
LIMIT 10;

-- Processes with specific environment variables
SELECT *
FROM execution_20250125
WHERE list_contains(
  list_transform(Envs, x -> starts_with(x, 'HOMEBREW_PREFIX=')),
  true
)
LIMIT 10;

Filtering Telemetry on the Client

Hosts can run CEL expressions to drop or redact events before they are uploaded to your bucket. This is useful for reducing volume, excluding noisy event types, or scrubbing sensitive values like tokens out of events. See Filter Expressions for details.

Additional Resources

For detailed information about all event types and their complete schemas, see the Schema page.

For more information about Santa’s telemetry capabilities, visit Santa’s telemetry documentation.