SigmaHQ/rules/linux/macos_susp_histfile_operations.yml
2020-10-17 02:37:21 +03:00

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1.3 KiB
YAML

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