Detection rules › Kusto
GitHub - User visibility Was changed
'Detect activities when a user visibility Was changed. This query runs every day and its severity is Medium.'
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Initial Access |
Rule body
id: 0b85a077-8ba5-4cb5-90f7-1e882afe20c9
name: GitHub - User visibility Was changed
description: |
'Detect activities when a user visibility Was changed. This query runs every day and its severity is Medium.'
severity: Medium
status: Available
requiredDataConnectors: []
queryFrequency: 1d
queryPeriod: 7d
triggerOperator: gt
triggerThreshold: 0
tactics:
- InitialAccess
relevantTechniques:
- T1078
query: |
GitHubAuditData
| where Visibility != PreviousVisibility
| project Actor, PreviousVisibility, Visibility
| extend Name = iif(Actor contains "@", split(Actor, "@")[0], Actor)
| extend UPNSuffix = iif(Actor contains "@", split(Actor, "@")[1], "")
entityMappings:
- entityType: Account
fieldMappings:
- identifier: FullName
columnName: Actor
- identifier: Name
columnName: Name
- identifier: UPNSuffix
columnName: UPNSuffix
version: 1.0.1
kind: Scheduled
Stages and Predicates
Stage 1: source
GitHubAuditData
Stage 2: where
| where Visibility != PreviousVisibility
Stage 3: project
| project Actor, PreviousVisibility, Visibility
Stage 4: extend
| extend Name = iif(Actor contains "@", split(Actor, "@")[0], Actor)
Stage 5: extend
| extend UPNSuffix = iif(Actor contains "@", split(Actor, "@")[1], "")
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
Visibility | cross_field_compare |
| field:"Visibility" kind:cross_field_compare value:"PreviousVisibility" |
Output fields
These fields are emitted when the rule matches.
| Field | Source |
|---|---|
Actor | project |
PreviousVisibility | project |
Visibility | project |
Name | extend |
UPNSuffix | extend |