rules/linux/auditd/lnx_auditd_user_discovery.yml

title: System Owner or User Discovery
id: 9a0d8ca0-2385-4020-b6c6-cb6153ca56f3
status: test
description: Adversaries may use the information from System Owner/User Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
author: Timur Zinniatullin, oscd.community
references:
  - https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1033/T1033.md
date: 2019/10/21
modified: 2021/11/27
logsource:
  product: linux
  service: auditd
detection:
  selection:
    type: 'EXECVE'
    a0:
      - 'users'
      - 'w'
      - 'who'
  condition: selection
falsepositives:
  - Admin activity
level: low
tags:
  - attack.discovery
  - attack.t1033
Unified line terminators of rules to Unix 2019-11-12 23:05:36 +01:00			`title: System Owner or User Discovery`
Added UUIDs to rules 2019-11-12 23:12:27 +01:00			`id: 9a0d8ca0-2385-4020-b6c6-cb6153ca56f3`
$frack113$ Change status for old rules 2021-11-27 11:33:14 +01:00			`status: test`
			`description: Adversaries may use the information from System Owner/User Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.`
Unified line terminators of rules to Unix 2019-11-12 23:05:36 +01:00			`author: Timur Zinniatullin, oscd.community`
			`references:`
$frack113$ Change status for old rules 2021-11-27 11:33:14 +01:00			`- https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1033/T1033.md`
			`date: 2019/10/21`
			`modified: 2021/11/27`
Unified line terminators of rules to Unix 2019-11-12 23:05:36 +01:00			`logsource:`
$frack113$ Change status for old rules 2021-11-27 11:33:14 +01:00			`product: linux`
			`service: auditd`
Unified line terminators of rules to Unix 2019-11-12 23:05:36 +01:00			`detection:`
$frack113$ Change status for old rules 2021-11-27 11:33:14 +01:00			`selection:`
			`type: 'EXECVE'`
			`a0:`
			`- 'users'`
			`- 'w'`
			`- 'who'`
			`condition: selection`
Unified line terminators of rules to Unix 2019-11-12 23:05:36 +01:00			`falsepositives:`
$frack113$ Change status for old rules 2021-11-27 11:33:14 +01:00			`- Admin activity`
Unified line terminators of rules to Unix 2019-11-12 23:05:36 +01:00			`level: low`
			`tags:`
$frack113$ Change status for old rules 2021-11-27 11:33:14 +01:00			`- attack.discovery`
			`- attack.t1033`