2020-02-20 22:00:16 +00:00
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title: Remove Immutable File Attribute
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2019-12-19 22:56:36 +00:00
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id: a5b977d6-8a81-4475-91b9-49dbfcd941f7
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2019-10-23 18:24:13 +00:00
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status: experimental
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2020-09-14 04:03:04 +00:00
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description: Detects removing immutable file attribute
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2019-10-23 18:24:13 +00:00
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author: Jakob Weinzettl, oscd.community
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date: 2019/09/23
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2020-09-14 04:03:04 +00:00
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references:
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- https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1222.002/T1222.002.yaml
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2019-10-23 18:24:13 +00:00
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logsource:
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product: linux
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2019-11-29 08:27:31 +00:00
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service: auditd
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2019-10-23 18:24:13 +00:00
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detection:
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2019-11-29 08:27:31 +00:00
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selection:
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type: 'EXECVE'
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2019-12-02 01:54:32 +00:00
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a0|contains: 'chattr'
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a1|contains: '-i'
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2019-11-29 08:27:31 +00:00
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condition: selection
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2019-10-23 18:24:13 +00:00
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falsepositives:
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2020-01-19 21:34:16 +00:00
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- Administrator interacting with immutable files (for instance backups)
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2019-10-23 18:24:13 +00:00
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level: medium
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2020-09-14 04:03:04 +00:00
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tags:
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- attack.defense_evasion
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- attack.t1222.002
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