title: Decode Base64 Encoded Text -MacOs
id: 719c22d7-c11a-4f2c-93a6-2cfdd5412f68
status: test
description: Detects usage of base64 utility to decode arbitrary base64-encoded text
references:
- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1027/T1027.md
author: Daniil Yugoslavskiy, oscd.community
date: 2020-10-19
modified: 2022-11-26
tags:
- attack.stealth
- attack.t1027
logsource:
category: process_creation
product: macos
detection:
selection:
Image: '/usr/bin/base64'
CommandLine|contains: '-d'
condition: selection
falsepositives:
- Legitimate activities
level: low