File Time Attribute Change

Detect file time attribute change to hide new or changes to existing files

Detection logic

selection

Image|endswith: /touch
CommandLine|contains:
  - -t
  - -acmr
  - -d
  - -r

Condition

selection

Raw YAML

title: File Time Attribute Change
id: 88c0f9d8-30a8-4120-bb6b-ebb54abcf2a0
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, Mikhail Larin, oscd.community
date: 2020-10-19
modified: 2022-01-12
tags:
    - attack.stealth
    - attack.t1070.006
logsource:
    product: macos
    category: process_creation
detection:
    selection:
        Image|endswith: '/touch'
        CommandLine|contains:
            - '-t'
            - '-acmr'
            - '-d'
            - '-r'
    condition: selection
falsepositives:
    - Unknown
level: medium

False positives

Unknown

References

https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1070.006/T1070.006.md

Similar rules

Touch Suspicious Service File

medium

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Directory Removal Via Rmdir

low

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ETW Trace Evasion Activity

high

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File Deletion

informational

linux · Shares T1070