Sigma rule: File Time Attribute Change

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-f73c9e8b2fb2, updated 2022-01-12T00:00:00.000Z.

Rule

Title
File Time Attribute Change
Status
test
Level
medium
Author
Igor Fits, Mikhail Larin, oscd.community
Date
2020-10-19
Modified
2022-01-12
File
rules/macos/process_creation/proc_creation_macos_change_file_time_attr.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

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

Log source

product
macos
category
process_creation

Detection

selection:
    Image|endswith: '/touch'
    CommandLine|contains:
        - '-t'
        - '-acmr'
        - '-d'
        - '-r'
condition: selection

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.stealth
  • attack.t1070.006

MITRE ATT&CK ids this rule names

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/macos/process_creation/proc_creation_macos_change_file_time_attr.yml

Sources and licences

  • SigmaHQ

    "File Time Attribute Change" by Igor Fits, Mikhail Larin, oscd.community (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/macos/process_creation/proc_creation_macos_change_file_time_attr.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: File Time Attribute Change",
entity page, dataset version ref-f73c9e8b2fb2, updated 2022-01-12T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/88c0f9d8-30a8-4120-bb6b-ebb54abcf2a0 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 88c0f9d8-30a8-4120-bb6b-ebb54abcf2a0, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.