ApexOne - Multiple deny or terminate actions on single IP

Back


Id	cd94e078-67b7-11ec-90d6-0242ac120003
Rulename	ApexOne - Multiple deny or terminate actions on single IP
Description	Detects multiple deny or terminate actions on single IP.
Severity	High
Tactics	InitialAccess
Techniques	T1190
Required data connectors	CefAma
Kind	Scheduled
Query frequency	1h
Query period	1h
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Trend Micro Apex One/Analytic Rules/TMApexOneMultipleDenyOrTerminateActionOnSingleIp.yaml
Version	1.0.3
Arm template	cd94e078-67b7-11ec-90d6-0242ac120003.json

KQL

let threshold = 5;
TMApexOneEvent
| where EventMessage has "Behavior Monitoring"
| where DvcAction == 2 or DvcAction == 3
| summarize count() by SrcIpAddr, bin(TimeGenerated, 10m)
| where count_ > threshold
| extend IPCustomEntity = SrcIpAddr

YAML

query: |
  let threshold = 5;
  TMApexOneEvent
  | where EventMessage has "Behavior Monitoring"
  | where DvcAction == 2 or DvcAction == 3
  | summarize count() by SrcIpAddr, bin(TimeGenerated, 10m)
  | where count_ > threshold
  | extend IPCustomEntity = SrcIpAddr  
entityMappings:
- fieldMappings:
  - identifier: Address
    columnName: IPCustomEntity
  entityType: IP
triggerOperator: gt
description: |
    'Detects multiple deny or terminate actions on single IP.'
tactics:
- InitialAccess
severity: High
queryFrequency: 1h
kind: Scheduled
name: ApexOne - Multiple deny or terminate actions on single IP
triggerThreshold: 0
status: Available
id: cd94e078-67b7-11ec-90d6-0242ac120003
requiredDataConnectors:
- connectorId: CefAma
  dataTypes:
  - CommonSecurityLog
relevantTechniques:
- T1190
version: 1.0.3
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Trend Micro Apex One/Analytic Rules/TMApexOneMultipleDenyOrTerminateActionOnSingleIp.yaml
queryPeriod: 1h

ARM