APIAccountTakeover.yaml

id: 25c86f99-0a91-4b7f-88f3-599a008e5ab8
name: API - Account Takeover
description: |
  '42Crunch API protection against account takeover'
severity: High
requiredDataConnectors:
  - connectorId: 42CrunchAPIProtection
    dataTypes:
      - apifirewall_log_1_CL
queryFrequency: 5m
queryPeriod: 5m
triggerOperator: gt
triggerThreshold: 0
eventGroupingSettings:
  aggregationKind: SingleAlert
status: Available
tactics:
  - CredentialAccess
  - Discovery
relevantTechniques:
  - T1110
  - T1087
query: |
  let firstRec = apifirewall_log_1_CL 
  | where TimeGenerated >= ago(5m) 
  | project-away Non_blocking_mode_b, Source_Port_d, Destination_Port_d, Query_s, API_ID_g, Request_Header_s, Response_Header_s, Errors_s, Type, UUID_g
  | where Instance_Name_s == "Instance_1" and (URI_Path_s has "/api/register" or URI_Path_s has "/api/reset") and Status_d == 403;
  let recCount = iff((toscalar(firstRec | count) >= 20), 1, 0);
  firstRec | take recCount
customDetails:
entityMappings:
  - entityType: IP
    fieldMappings:
      - identifier: Address
        columnName: Source_IP_s
  - entityType: Host
    fieldMappings:
      - identifier: HostName
        columnName: Hostname_s
  - entityType: Account
    fieldMappings:
      - identifier: FullName
        columnName: Instance_Name_s
version: 1.0.0
kind: Scheduled