43 lines
1.7 KiB
YAML
43 lines
1.7 KiB
YAML
title: Empire PowerShell Launch Parameters
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author: Florian Roth
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date: 2019/04/20
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description: Detects suspicious powershell command line parameters used in Empire
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detection:
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SELECTION_1:
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EventID: 1
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SELECTION_2:
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CommandLine: '* -NoP -sta -NonI -W Hidden -Enc *'
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SELECTION_3:
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CommandLine: '* -noP -sta -w 1 -enc *'
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SELECTION_4:
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CommandLine: '* -NoP -NonI -W Hidden -enc *'
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SELECTION_5:
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CommandLine: '* -noP -sta -w 1 -enc*'
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SELECTION_6:
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CommandLine: '* -enc SQB*'
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SELECTION_7:
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CommandLine: '* -nop -exec bypass -EncodedCommand *'
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condition: (SELECTION_1 and (SELECTION_2 or SELECTION_3 or SELECTION_4 or SELECTION_5
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or SELECTION_6 or SELECTION_7))
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falsepositives:
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- Other tools that incidentally use the same command line parameters
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id: 79f4ede3-402e-41c8-bc3e-ebbf5f162581
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level: critical
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logsource:
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category: process_creation
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product: windows
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modified: 2020/07/20
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references:
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- https://github.com/EmpireProject/Empire/blob/c2ba61ca8d2031dad0cfc1d5770ba723e8b710db/lib/common/helpers.py#L165
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- https://github.com/EmpireProject/Empire/blob/e37fb2eef8ff8f5a0a689f1589f424906fe13055/lib/modules/powershell/persistence/powerbreach/deaduser.py#L191
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- https://github.com/EmpireProject/Empire/blob/e37fb2eef8ff8f5a0a689f1589f424906fe13055/lib/modules/powershell/persistence/powerbreach/resolver.py#L178
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- https://github.com/EmpireProject/Empire/blob/e37fb2eef8ff8f5a0a689f1589f424906fe13055/data/module_source/privesc/Invoke-EventVwrBypass.ps1#L64
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status: experimental
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tags:
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- attack.execution
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- attack.t1059.001
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- attack.t1086
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yml_filename: win_susp_powershell_empire_launch.yml
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yml_path: /Users/user/Documents/YamatoSecurity/sigma/rules/windows/process_creation
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