CiscoISE - Attempt to delete local store logs

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Id	b6549a28-d61c-476e-b350-4404352ee427
Rulename	CiscoISE - Attempt to delete local store logs
Description	Detects when attempt to delete local store logs failed.
Severity	Medium
Tactics	DefenseEvasion
Techniques	T1070
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/CiscoISEAttempDeleteLocalStoreLogs.yaml
Version	1.0.3
Arm template	b6549a28-d61c-476e-b350-4404352ee427.json

KQL

let lbtime = 5m;
CiscoISEEvent
| where TimeGenerated > ago(lbtime)
| where EventId == '59103'
| project TimeGenerated, DvcHostname, DvcIpAddr, DstUserName
| extend HostCustomEntity = DvcHostname
| extend IPCustomEntity = DvcIpAddr
| extend AccountCustomEntity = DstUserName

YAML

description: |
    'Detects when attempt to delete local store logs failed.'
kind: Scheduled
tactics:
- DefenseEvasion
requiredDataConnectors:
- connectorId: SyslogAma
  datatypes:
  - Syslog
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cisco ISE/Analytic Rules/CiscoISEAttempDeleteLocalStoreLogs.yaml
severity: Medium
name: CiscoISE - Attempt to delete local store logs
triggerThreshold: 0
queryPeriod: 5m
query: |
  let lbtime = 5m;
  CiscoISEEvent
  | where TimeGenerated > ago(lbtime)
  | where EventId == '59103'
  | project TimeGenerated, DvcHostname, DvcIpAddr, DstUserName
  | extend HostCustomEntity = DvcHostname
  | extend IPCustomEntity = DvcIpAddr
  | extend AccountCustomEntity = DstUserName  
relevantTechniques:
- T1070
id: b6549a28-d61c-476e-b350-4404352ee427
queryFrequency: 5m
status: Available
triggerOperator: gt
version: 1.0.3
entityMappings:
- entityType: Account
  fieldMappings:
  - columnName: AccountCustomEntity
    identifier: FullName
- entityType: IP
  fieldMappings:
  - columnName: IPCustomEntity
    identifier: Address
- entityType: Host
  fieldMappings:
  - columnName: HostCustomEntity
    identifier: FullName

ARM