title: File Time Attribute Change - Linux
id: b3cec4e7-6901-4b0d-a02d-8ab2d8eb818b
status: test
description: Detect file time attribute change to hide new or changes to existing files.
references:
- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1070.006/T1070.006.md
author: 'Igor Fits, oscd.community'
date: 2020-10-15
modified: 2022-11-28
tags:
- attack.stealth
- attack.t1070.006
logsource:
product: linux
service: auditd
detection:
execve:
type: 'EXECVE'
touch:
- 'touch'
selection2:
- '-t'
- '-acmr'
- '-d'
- '-r'
condition: execve and touch and selection2
falsepositives:
- Unknown
level: medium
simulation:
- type: atomic-red-team
name: Set a file's access timestamp
technique: T1070.006
atomic_guid: 5f9113d5-ed75-47ed-ba23-ea3573d05810
- type: atomic-red-team
name: Set a file's modification timestamp
technique: T1070.006
atomic_guid: 20ef1523-8758-4898-b5a2-d026cc3d2c52
- type: atomic-red-team
name: Modify file timestamps using reference file
technique: T1070.006
atomic_guid: 631ea661-d661-44b0-abdb-7a7f3fc08e50