Detection rules › Kusto
SSG_Security_Incidents
The security analytic rule is designed to scrutinize network activity involving private IP addresses within an organization's internal network. By filtering log entries to include only those where either the source or the destination IP is private, the rule focuses on internal communications that could indicate unauthorized access, internal threats, or other security anomalies.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Impact |
Rule body
id: d41fa731-45a2-4b23-bb1d-29896fbc5298
name: SSG_Security_Incidents
version: 1.0.0
kind: NRT
description: The security analytic rule is designed to scrutinize network activity involving private IP addresses within an organization's internal network. By filtering log entries to include only those where either the source or the destination IP is private, the rule focuses on internal communications that could indicate unauthorized access, internal threats, or other security anomalies.
severity: HIGH
tactics:
- Impact
relevantTechniques:
- T1486
query: |
SINECSecurityGuard_CL
| where ipv4_is_private(source_ip) or ipv4_is_private(destination_ip)
| project source_ip, destination_ip, signature_id, signature_name
suppressionEnabled: false
eventGroupingSettings:
aggregationKind: AlertPerResult
suppressionDuration: 5h
alertDetailsOverride:
alertDisplayNameFormat: '{{signature_name}} '
alertDescriptionFormat: 'Alert {{signature_name}} generated from {{source_ip}} to {{destination_ip}} '
alertDynamicProperties: []
incidentConfiguration:
createIncident: true
groupingConfiguration:
enabled: true
reopenClosedIncident: false
lookbackDuration: 5m
matchingMethod: AnyAlert
groupByEntities:
- IP
groupByAlertDetails: []
groupByCustomDetails:
- Source_IP
entityMappings:
- entityType: IP
fieldMappings:
- identifier: Address
columnName: source_ip
- entityType: IP
fieldMappings:
- identifier: Address
columnName: destination_ip
customDetails:
Source_IP: source_ip
Stages and Predicates
Stage 1: source
SINECSecurityGuard_CL
Stage 2: where
| where ipv4_is_private(source_ip) or ipv4_is_private(destination_ip)
Stage 3: project
| project source_ip, destination_ip, signature_id, signature_name
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
destination_ip | cidr_match |
| field:"destination_ip" kind:cidr_match |
source_ip | cidr_match |
| field:"src_ip" kind:cidr_match |
Output fields
These fields are emitted when the rule matches.
| Field | Source |
|---|---|
destination_ip | project |
signature_id | project |
signature_name | project |
source_ip | project |