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blue-team-tools/rules/windows/process_creation/proc_creation_win_powershell_frombase64string.yml
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2022-02-22 11:16:31 +01:00

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title: FromBase64String Command Line
id: e32d4572-9826-4738-b651-95fa63747e8a
status: test
description: Detects suspicious FromBase64String expressions in command line arguments
author: Florian Roth
references:
- https://gist.github.com/Neo23x0/6af876ee72b51676c82a2db8d2cd3639
date: 2020/01/29
modified: 2021/11/27
logsource:
category: process_creation
product: windows
detection:
selection:
CommandLine|contains: '::FromBase64String('
condition: selection
falsepositives:
- Administrative script libraries
level: high
tags:
- attack.t1027
- attack.defense_evasion
- attack.t1140
- attack.t1059.001