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crowdstrike_cql
Detect locally disabled RTR
This query identifies hosts with locally disabled RTR.
Detection Query
#event_simpleName=SensorHeartbeat
| groupBy([aid], function=selectLast([@timestamp, ComputerName, SensorStateBitMap]), limit=max)
| bitfield:extractFlags(
field=SensorStateBitMap,
output=[
[2, RTR_Locally_Disabled]
])
| RTR_Locally_Disabled="true"
Author
CrowdStrike
Data Sources
Endpoint
Platforms
windowslinux
Tags
Monitoringcs_module:Insight
Raw Content
# --- Query Metadata ---
# Human-readable name for the query. Will be displayed as the title.
name: Detect locally disabled RTR
# Description of what the query does and its purpose.
description: This query identifies hosts with locally disabled RTR.
# The author or team that created the query.
author: CrowdStrike
# The required log sources to run this query successfully in Next-Gen SIEM.
# This will be displayed in the UI to inform the user.
log_sources:
- Endpoint
# The CrowdStrike modules required to run this query.
cs_required_modules:
- Insight
# Tags for filtering and categorization.
# Include relevant techniques, tactics, or platforms.
tags:
- Monitoring
# --- Query Content ---
# The actual CrowdStrike Query Language (CQL) code.
# Using the YAML block scalar `|` allows for multi-line strings.
cql: |
#event_simpleName=SensorHeartbeat
| groupBy([aid], function=selectLast([@timestamp, ComputerName, SensorStateBitMap]), limit=max)
| bitfield:extractFlags(
field=SensorStateBitMap,
output=[
[2, RTR_Locally_Disabled]
])
| RTR_Locally_Disabled="true"