Detection rules › Kusto

CiscoISE - Backup failed

Status
available
Severity
medium
Time window
6h
Source
github.com/Azure/Azure-Sentinel

'Detects when backup activity failed.'

MITRE ATT&CK coverage

TacticTechniques
ImpactT1490 Inhibit System Recovery

Rule body kusto

id: 4eddd44a-25e4-41af-930d-0c17218bec74
name: CiscoISE - Backup failed
description: |
  'Detects when backup activity failed.'
severity: Medium
status: Available
requiredDataConnectors:
  - connectorId: SyslogAma
    datatypes:
      - Syslog
queryFrequency: 6h
queryPeriod: 6h
triggerOperator: gt
triggerThreshold: 0
tactics:
  - Impact
relevantTechniques:
  - T1490
query: |
  let lbtime = 6h;
  CiscoISEEvent
  | where TimeGenerated > ago(lbtime)
  | where EventId in ('60095', '60098')
  | project TimeGenerated, DvcHostname, DvcIpAddr
  | extend HostCustomEntity = DvcHostname
  | extend IPCustomEntity = DvcIpAddr
entityMappings:
  - entityType: Host
    fieldMappings:
      - identifier: FullName
        columnName: HostCustomEntity
  - entityType: IP
    fieldMappings:
      - identifier: Address
        columnName: IPCustomEntity
version: 1.0.3
kind: Scheduled

Stages and Predicates

Parameters

let lbtime = 6h;

Stage 1: source

CiscoISEEvent

Stage 2: where

| where TimeGenerated > ago(lbtime)

Stage 3: where

| where EventId in ('60095', '60098')

Stage 4: project

| project TimeGenerated, DvcHostname, DvcIpAddr

Stage 5: extend

| extend HostCustomEntity = DvcHostname

Stage 6: extend

| extend IPCustomEntity = DvcIpAddr

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.

FieldKindValues
EventIdin
  • 60095 transforms: cased
  • 60098 transforms: cased

Output fields

Fields the rule emits when it matches. Chronicle authors list these in the outcome block; they appear on the detection and $risk_score drives alerting. Sentinel / Defender XDR rules build them up through project / summarize / extend stages. Sentinel maps these into alert fields via entityMappings and customDetails; Defender XDR custom detections surface them as alert fields directly.

FieldSource
DvcHostnameproject
DvcIpAddrproject
TimeGeneratedproject
HostCustomEntityextend
IPCustomEntityextend