Use Of Hidden Paths Or Files — Sigma Rule

Rule metadata and linked tags

Author: David Burkett, @signalblur. Source status: test; severity: low. Source dates: 2022-12-30 / not supplied.

{
  "product": "linux",
  "service": "auditd"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: ae26fca91a26687422ff6c79dd9c2c33f539a9107ccf4896ffd031d0e3d2aa8f

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: Use Of Hidden Paths Or Files
id: 9e1bef8d-0fff-46f6-8465-9aa54e128c1e
related:
    - id: d08722cd-3d09-449a-80b4-83ea2d9d4616
      type: similar
status: test
description: Detects calls to hidden files or files located in hidden directories in NIX systems.
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1564.001/T1564.001.md
author: David Burkett, @signalblur
date: 2022-12-30
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.execution
    - attack.stealth
    - attack.t1574.001
logsource:
    product: linux
    service: auditd
detection:
    selection:
        type: 'PATH'
        name|contains: '/.'
    filter:
        name|contains:
            - '/.cache/'
            - '/.config/'
            - '/.pyenv/'
            - '/.rustup/toolchains'
    condition: selection and not filter
falsepositives:
    - Unknown
level: low

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1564.001/T1564.001.md