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blue-team-tools/rules/linux/process_creation/proc_creation_lnx_base64_decode.yml
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Nasreddine Bencherchali 425c29cf1c feat: add new linux rules
2022-12-29 11:17:42 +01:00

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YAML

title: Decode Base64 Encoded Text
id: e2072cab-8c9a-459b-b63c-40ae79e27031
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: 2021/11/27
tags:
- attack.defense_evasion
- attack.t1027
logsource:
category: process_creation
product: linux
detection:
selection:
Image|endswith: '/base64'
CommandLine|contains: '-d' # Also covers "--decode"
condition: selection
falsepositives:
- Legitimate activities
level: low