blue-team-tools/rules/linux/auditd/lnx_auditd_alter_bash_profile.yml

title: Edit of .bash_profile and .bashrc
id: e74e15cc-c4b6-4c80-b7eb-dfe49feb7fe9
status: test
description: Detects change of user environment. Adversaries can insert code into these files to gain persistence each time a user logs in or opens a new shell.
author: Peter Matkovski
references:
  - 'MITRE Attack technique T1156; .bash_profile and .bashrc. '
date: 2019/05/12
modified: 2022/02/22
logsource:
  product: linux
  service: auditd
detection:
  selection:
    type: 'PATH'
    name:
      - '/root/.bashrc'
      - '/root/.bash_profile'
      - '/root/.profile'
      - '/home/*/.bashrc'
      - '/home/*/.bash_profile'
      - '/home/*/.profile'
      - '/etc/profile'
      - '/etc/shells'
      - '/etc/bashrc'
      - '/etc/csh.cshrc'
      - '/etc/csh.login'
  condition: selection
falsepositives:
  - Admin or User activity
level: medium
tags:
  - attack.s0003
  - attack.persistence
  - attack.t1546.004