Sigma rule: File Time Attribute Change - Linux

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-84516e6b0041, updated 2022-11-28T00:00:00.000Z.

Rule

Title: File Time Attribute Change - Linux
Status: test
Level: medium
Author: Igor Fits, oscd.community
Date: 2020-10-15
Modified: 2022-11-28
File: rules/linux/auditd/execve/lnx_auditd_change_file_time_attr.yml
Commit: ccbb0369507f796db0b0ae6854c8a2be471b9d84

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

Log source

product: linux
service: auditd

Detection

execve:
    type: 'EXECVE'
touch:
    - 'touch'
selection2:
    - '-t'
    - '-acmr'
    - '-d'
    - '-r'
condition: execve and touch and selection2

False positives (as the rule lists them)

Unknown

MITRE ATT&CK ids this rule names

T1070.006

References

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

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

Sources and licences

SigmaHQ
"File Time Attribute Change - Linux" by Igor Fits, oscd.community (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/linux/auditd/execve/lnx_auditd_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 - Linux",
entity page, dataset version ref-84516e6b0041, updated 2022-11-28T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/b3cec4e7-6901-4b0d-a02d-8ab2d8eb818b (accessed 2026-11-03).
Underlying source: SigmaHQ rule b3cec4e7-6901-4b0d-a02d-8ab2d8eb818b, 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.