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blue-team-tools/rules/linux/auditd/lnx_auditd_chattr_immutable_removal.yml
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Nasreddine Bencherchali 598d29f811 Merge PR #4950 from @nasbench - Comply With v2 Spec Changes
chore: change tags, date, modified fields to comply with v2 of the Sigma spec.
chore: update the related type from `obsoletes` to `obsolete`.
chore: update local json schema to the latest version.
2024-08-12 12:02:50 +02:00

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YAML

title: Remove Immutable File Attribute - Auditd
id: a5b977d6-8a81-4475-91b9-49dbfcd941f7
status: test
description: Detects removing immutable file attribute.
references:
- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1222.002/T1222.002.md
author: Jakob Weinzettl, oscd.community
date: 2019-09-23
modified: 2022-11-26
tags:
- attack.defense-evasion
- attack.t1222.002
logsource:
product: linux
service: auditd
detection:
selection:
type: 'EXECVE'
a0|contains: 'chattr'
a1|contains: '-i'
condition: selection
falsepositives:
- Administrator interacting with immutable files (e.g. for instance backups).
level: medium