Detection rules › Kusto
Snowflake - Possible discovery activity
'Detects possible discovery activity.'
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Discovery |
Rule body
id: 09b8dfc7-87b0-4215-b34b-bab363d685cb
name: Snowflake - Possible discovery activity
description: |
'Detects possible discovery activity.'
severity: Medium
status : Available
requiredDataConnectors:
- connectorId: Snowflake
dataTypes:
- Snowflake
queryFrequency: 1h
queryPeriod: 1h
triggerOperator: gt
triggerThreshold: 0
tactics:
- Discovery
relevantTechniques:
- T1526
query: |
let threshold = 20;
Snowflake
| where QueryType =~ 'SHOW'
| where QueryExecutionStatus =~ 'SUCCESS'
| summarize count() by TargetUsername, bin(TimeGenerated, 5m)
| where count_ > threshold
| extend AccountCustomEntity = TargetUsername
entityMappings:
- entityType: Account
fieldMappings:
- identifier: Name
columnName: AccountCustomEntity
version: 1.0.2
kind: Scheduled
Stages and Predicates
Parameters
let threshold = 20;
Stage 1: source
Snowflake
Stage 2: where
| where QueryType =~ 'SHOW'
Stage 3: where
| where QueryExecutionStatus =~ 'SUCCESS'
Stage 4: summarize
| summarize count() by TargetUsername, bin(TimeGenerated, 5m)
Stage 5: where
| where count_ > threshold
Stage 6: extend
| extend AccountCustomEntity = TargetUsername
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
QueryExecutionStatus | eq |
| field:"QueryExecutionStatus" kind:eq value:"SUCCESS" |
QueryType | eq |
| field:"QueryType" kind:eq value:"SHOW" |
count_ | gt |
| field:"count_" kind:gt value:"20" |
Output fields
These fields are emitted when the rule matches.
| Field | Source |
|---|---|
TargetUsername | summarize |
AccountCustomEntity | extend |