CiscoISE - Log files deleted

Back


Id	21d3be4c-6088-4e76-b6eb-d25479019cb9
Rulename	CiscoISE - Log files deleted
Description	Detects log file deleting activity.
Severity	Medium
Tactics	DefenseEvasion
Techniques	T1070.004
Required data connectors	SyslogAma
Kind	Scheduled
Query frequency	5m
Query period	5m
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cisco ISE/Analytic Rules/CiscoISELogsDeleted.yaml
Version	1.0.3
Arm template	21d3be4c-6088-4e76-b6eb-d25479019cb9.json

KQL

let lbtime = 5m;
CiscoISEEvent
| where TimeGenerated > ago(lbtime)
| where EventId in ('58015', '59101', '59102')
| project TimeGenerated, DvcHostname, DvcIpAddr, DstUserName
| extend HostCustomEntity = DvcHostname
| extend IPCustomEntity = DvcIpAddr
| extend AccountCustomEntity = DstUserName

YAML

kind: Scheduled
relevantTechniques:
- T1070.004
id: 21d3be4c-6088-4e76-b6eb-d25479019cb9
queryPeriod: 5m
triggerThreshold: 0
entityMappings:
- fieldMappings:
  - columnName: AccountCustomEntity
    identifier: FullName
  entityType: Account
- fieldMappings:
  - columnName: IPCustomEntity
    identifier: Address
  entityType: IP
- fieldMappings:
  - columnName: HostCustomEntity
    identifier: FullName
  entityType: Host
version: 1.0.3
severity: Medium
query: |
  let lbtime = 5m;
  CiscoISEEvent
  | where TimeGenerated > ago(lbtime)
  | where EventId in ('58015', '59101', '59102')
  | project TimeGenerated, DvcHostname, DvcIpAddr, DstUserName
  | extend HostCustomEntity = DvcHostname
  | extend IPCustomEntity = DvcIpAddr
  | extend AccountCustomEntity = DstUserName  
triggerOperator: gt
requiredDataConnectors:
- datatypes:
  - Syslog
  connectorId: SyslogAma
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cisco ISE/Analytic Rules/CiscoISELogsDeleted.yaml
status: Available
description: |
    'Detects log file deleting activity.'
name: CiscoISE - Log files deleted
tactics:
- DefenseEvasion
queryFrequency: 5m

ARM