Detection rules › Kusto

Palo Alto Prisma Cloud - Network ACL allow all outbound traffic

Status
available
Severity
medium
Time window
1h
Source
github.com/Azure/Azure-Sentinel

'Detects network ACLs with outbound rule to allow all traffic.'

MITRE ATT&CK coverage

TacticTechniques
Initial Access

Rule body

id: 4264e133-eec2-438f-af85-05e869308f94
name: Palo Alto Prisma Cloud - Network ACL allow all outbound traffic
description: |
  'Detects network ACLs with outbound rule to allow all traffic.'
severity: Medium
status: Available
requiredDataConnectors:
  - connectorId: PaloAltoPrismaCloud
    dataTypes:
      - PaloAltoPrismaCloud
queryFrequency: 1h
queryPeriod: 1h
triggerOperator: gt
triggerThreshold: 0
tactics:
  - InitialAccess
relevantTechniques:
  - T1133
query: |
  PaloAltoPrismaCloud
  | where Reason =~ 'NEW_ALERT'
  | where Status =~ 'open'
  | where AlertMessage has 'Network ACLs with Outbound rule to allow All Traffic'
  | extend AccountCustomEntity = UserName
entityMappings:
  - entityType: Account
    fieldMappings:
      - identifier: Name
        columnName: AccountCustomEntity
version: 1.0.1
kind: Scheduled

Stages and Predicates

Stage 1: source

PaloAltoPrismaCloud

Stage 2: where

| where Reason =~ 'NEW_ALERT'

Stage 3: where

| where Status =~ 'open'

Stage 4: where

| where AlertMessage has 'Network ACLs with Outbound rule to allow All Traffic'

Stage 5: extend

| extend AccountCustomEntity = UserName

Indicators

These rows show field, operator, and value matches.

Output fields

These fields are emitted when the rule matches.

FieldSource
AccountCustomEntityextend