title: 'Suspicious History File Operations'
id: 508a9374-ad52-4789-b568-fc358def2c65
status: experimental
description: 'Detects commandline operations on shell history files'
    # Rule detects presence of various shell history files in process commandline
    # Normally user expected to view own history with dedicated 'history' command and not some other tools
    # There is a possibility for rule to trigger, when T1070.003 techinuque is used (history file cleared)
    # For this rule to work you must enable audit of process execution in OpenBSM, see
    # https://osquery.readthedocs.io/en/stable/deployment/process-auditing/#macos-process-socket-auditing
author: 'Mikhail Larin, oscd.community'
date: 2020/10/17
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1552.003/T1552.003.md
logsource:
    product: macos
    category: process_creation
detection:
    selection:
        CommandLine|contains:
            - '.bash_history'
            - '.zsh_history'
            - '.zhistory'
            - '.history'
            - '.sh_history'
            - 'fish_history'
    condition: selection
falsepositives:
    - 'Legitimate administrative activity'
    - 'Ligitimate software, cleaning hist file'
level: medium
tags:
    - attack.credential_access
    - attack.t1552.003