Pathlock TDnR - Critical File Integrity Changes

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

Detects changes to checksums of critical SAP files, forwarded by Pathlock Threat Detection and Response. File integrity violations may indicate malware installation, unauthorized patching, or tampering with SAP executables and configuration files.

MITRE ATT&CK coverage

Tactic	Techniques
Stealth	`T1036` Masquerading
Defense Impairment	`T1685` Disable or Modify Tools

Rule body

id: 2a3b4c5d-6e7f-4a0b-8c1d-2e3f4a5b6c24
name: Pathlock TDnR - Critical File Integrity Changes
kind: Scheduled
description: >-
  Detects changes to checksums of critical SAP files, forwarded by Pathlock Threat Detection
  and Response. File integrity violations may indicate malware installation, unauthorized
  patching, or tampering with SAP executables and configuration files.
severity: High
status: Available
requiredDataConnectors:
  - connectorId: Pathlock_TDnR
    dataTypes:
      - Pathlock_TDnR_CL
queryFrequency: 1h
queryPeriod: 1h
triggerOperator: gt
triggerThreshold: 0
tactics:
  - DefenseEvasion
  - Persistence
relevantTechniques:
  - T1562
  - T1036
query: |
  Pathlock_TDnR_CL
  | where DataSource == "FILE_CHECKSUM"
  | 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 == "FILE_CHECKSUM"

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	`FILE_CHECKSUM`	`field:"DataSource" kind:eq value:"FILE_CHECKSUM"`

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`