Detection rules › Kusto
Critical Threat Detected
This is a third-party alert feed, not a detection over modeled telemetry. The vendor product raised the finding; this rule forwards it into the SIEM. It is searchable for reference but is excluded from the detection-rule browse and the ATT&CK coverage matrix.
'This creates an incident in the event a critical threat was identified on a Carbon Black managed endpoint.'
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Lateral Movement | T1210 Exploitation of Remote Services |
Rule body kusto
id: 2ca4e7fc-c61a-49e5-9736-5da8035c47e0
name: Critical Threat Detected
description: |
'This creates an incident in the event a critical threat was identified on a Carbon Black managed endpoint.'
severity: Medium
status: Available
requiredDataConnectors:
- connectorId: VMwareCarbonBlack
dataTypes:
- CarbonBlackNotifications_CL
queryFrequency: 1h
queryPeriod: 1h
triggerOperator: gt
triggerThreshold: 0
tactics:
- LateralMovement
relevantTechniques:
- T1210
query: |
let threshold = 8;
CarbonBlackNotifications_CL
| where threatHunterInfo_score_d >= threshold
| extend eventTime = datetime(1970-01-01) + tolong(threatHunterInfo_time_d/1000) * 1sec
| summarize StartTime = min(TimeGenerated), EndTime = max(TimeGenerated), count() by eventTime, Threat_Name = threatHunterInfo_reportName_s, Device_Name = deviceInfo_deviceName_s, Internal_IP = deviceInfo_internalIpAddress_s, External_IP = deviceInfo_externalIpAddress_s, Threat_Score = threatHunterInfo_score_d
| project-away count_
entityMappings:
- entityType: Host
fieldMappings:
- identifier: FullName
columnName: Device_Name
- entityType: IP
fieldMappings:
- identifier: Address
columnName: Internal_IP
version: 1.0.2
kind: Scheduled
Stages and Predicates
Parameters
let threshold = 8;
Stage 1: source
CarbonBlackNotifications_CL
Stage 2: where
| where threatHunterInfo_score_d >= threshold
Stage 3: extend
| extend eventTime = datetime(1970-01-01) + tolong(threatHunterInfo_time_d/1000) * 1sec
Stage 4: summarize
| summarize StartTime = min(TimeGenerated), EndTime = max(TimeGenerated), count() by eventTime, Threat_Name = threatHunterInfo_reportName_s, Device_Name = deviceInfo_deviceName_s, Internal_IP = deviceInfo_internalIpAddress_s, External_IP = deviceInfo_externalIpAddress_s, Threat_Score = threatHunterInfo_score_d
Stage 5: project-away
| project-away count_
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
threatHunterInfo_score_d | ge |
|
Output fields
Fields the rule emits when it matches. Chronicle authors list these in the outcome block; they appear on the detection and $risk_score drives alerting. Sentinel / Defender XDR rules build them up through project / summarize / extend stages. Sentinel maps these into alert fields via entityMappings and customDetails; Defender XDR custom detections surface them as alert fields directly.
| Field | Source |
|---|---|
Device_Name | summarize |
EndTime | summarize |
External_IP | summarize |
Internal_IP | summarize |
StartTime | summarize |
Threat_Name | summarize |
Threat_Score | summarize |
eventTime | summarize |