Pathlock TDnR - RFC Connection Changes

Status: available
Severity: high
Time window: 1h
Source: github.com/Azure/Azure-Sentinel

Detects changes to RFC (Remote Function Call) connection definitions in SAP (transaction SM59), forwarded by Pathlock Threat Detection and Response. Unauthorized RFC changes may introduce backdoor connections, redirect communications to malicious systems, or enable lateral movement across SAP landscapes.

MITRE ATT&CK coverage

Tactic	Techniques
Persistence	`T1098` Account Manipulation
Lateral Movement	`T1021` Remote Services

Rule body

id: 2a3b4c5d-6e7f-4a0b-8c1d-2e3f4a5b6c45
name: Pathlock TDnR - RFC Connection Changes
kind: Scheduled
description: >-
  Detects changes to RFC (Remote Function Call) connection definitions in SAP (transaction SM59),
  forwarded by Pathlock Threat Detection and Response. Unauthorized RFC changes may introduce
  backdoor connections, redirect communications to malicious systems, or enable lateral movement
  across SAP landscapes.
severity: High
status: Available
requiredDataConnectors:
  - connectorId: Pathlock_TDnR
    dataTypes:
      - Pathlock_TDnR_CL
queryFrequency: 1h
queryPeriod: 1h
triggerOperator: gt
triggerThreshold: 0
tactics:
  - LateralMovement
  - Persistence
relevantTechniques:
  - T1021
  - T1098
query: |
  Pathlock_TDnR_CL
  | where DataSource == "RFC_DESTINATIONS"
  | project TimeGenerated, Sysid, DataSource, Eventid, Instance, Hostname, Bname,
            Tcode, Report, Area, Subid, SrcIp, DestIp, AffectedUser, LogLine,
            MsgType, MsgId, MsgNo, MessageV1, MessageV2, MessageV3, MessageV4, CentralTs
entityMappings:
  - entityType: Account
    fieldMappings:
      - identifier: Name
        columnName: Bname
  - entityType: Host
    fieldMappings:
      - identifier: HostName
        columnName: Hostname
  - entityType: IP
    fieldMappings:
      - identifier: Address
        columnName: SrcIp
eventGroupingSettings:
  aggregationKind: SingleAlert
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    enabled: true
    reopenClosedIncident: false
    lookbackDuration: 5h
    matchingMethod: AnyAlert
    groupByEntities: []
    groupByAlertDetails: []
    groupByCustomDetails: []
suppressionDuration: 5h
suppressionEnabled: false
version: 1.0.0

Stages and Predicates

Stage 1: `source`

Pathlock_TDnR_CL

Stage 2: `where`

| where DataSource == "RFC_DESTINATIONS"

Stage 3: `project`

| project TimeGenerated, Sysid, DataSource, Eventid, Instance, Hostname, Bname,
          Tcode, Report, Area, Subid, SrcIp, DestIp, AffectedUser, LogLine,
          MsgType, MsgId, MsgNo, MessageV1, MessageV2, MessageV3, MessageV4, CentralTs

Indicators

These rows show field, operator, and value matches.

Field	Kind	Values	Search
`DataSource`	eq	`RFC_DESTINATIONS`	`field:"DataSource" kind:eq value:"RFC_DESTINATIONS"`

Output fields

These fields are emitted when the rule matches.

Field	Source
`AffectedUser`	`project`
`Area`	`project`
`Bname`	`project`
`CentralTs`	`project`
`DataSource`	`project`
`DestIp`	`project`
`Eventid`	`project`
`Hostname`	`project`
`Instance`	`project`
`LogLine`	`project`
`MessageV1`	`project`
`MessageV2`	`project`
`MessageV3`	`project`
`MessageV4`	`project`
`MsgId`	`project`
`MsgNo`	`project`
`MsgType`	`project`
`Report`	`project`
`SrcIp`	`project`
`Subid`	`project`
`Sysid`	`project`
`Tcode`	`project`
`TimeGenerated`	`project`