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38 lines
1.1 KiB
YAML
38 lines
1.1 KiB
YAML
title: Suspicious Scripting in a WMI Consumer
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id: fe21810c-2a8c-478f-8dd3-5a287fb2a0e0
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status: experimental
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description: Detects suspicious scripting in WMI Event Consumers
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author: Florian Roth
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references:
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- https://in.security/an-intro-into-abusing-and-identifying-wmi-event-subscriptions-for-persistence/
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- https://github.com/Neo23x0/signature-base/blob/master/yara/gen_susp_lnk_files.yar#L19
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date: 2019/04/15
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tags:
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- attack.t1086
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- attack.execution
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- attack.t1059.005
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logsource:
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product: windows
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service: sysmon
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detection:
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selection:
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EventID: 20
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Destination:
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- '*new-object system.net.webclient).downloadstring(*'
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- '*new-object system.net.webclient).downloadfile(*'
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- '*new-object net.webclient).downloadstring(*'
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- '*new-object net.webclient).downloadfile(*'
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- '* iex(*'
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- '*WScript.shell*'
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- '* -nop *'
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- '* -noprofile *'
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- '* -decode *'
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- '* -enc *'
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condition: selection
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fields:
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- CommandLine
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- ParentCommandLine
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falsepositives:
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- Administrative scripts
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level: high
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