2020-10-15 21:36:27 +11:00
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title: Invoke-Obfuscation VAR+ Launcher
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2021-10-09 09:50:49 +02:00
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id: 6bfb8fa7-b2e7-4f6c-8d9d-824e5d06ea9e
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related:
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- id: 0adfbc14-0ed1-11eb-adc1-0242ac120002
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type: derived
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2020-10-15 21:36:27 +11:00
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description: Detects Obfuscated use of Environment Variables to execute PowerShell
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status: experimental
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author: Jonathan Cheong, oscd.community
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date: 2020/10/15
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2021-10-16 08:05:15 +02:00
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modified: 2021/10/16
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2020-10-15 21:36:27 +11:00
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references:
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- https://github.com/Neo23x0/sigma/issues/1009 #(Task 24)
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tags:
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- attack.defense_evasion
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- attack.t1027
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- attack.execution
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- attack.t1059.001
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logsource:
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product: windows
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2021-10-16 08:05:15 +02:00
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category: ps_module
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2021-10-09 16:42:42 +02:00
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definition: PowerShell Module Logging must be enabled
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2021-10-09 10:30:36 +02:00
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detection:
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2021-10-09 09:50:49 +02:00
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selection_4103:
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2021-04-03 00:00:43 +02:00
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Payload|re: '.*cmd.{0,5}(?:\/c|\/r)(?:\s|)\"set\s[a-zA-Z]{3,6}.*(?:\{\d\}){1,}\\\"\s+?\-f(?:.*\)){1,}.*\"'
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2021-10-09 09:50:49 +02:00
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condition: selection_4103
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2020-10-15 21:36:27 +11:00
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falsepositives:
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- Unknown
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level: high
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