Nasreddine Bencherchali
598d29f811
chore: change tags, date, modified fields to comply with v2 of the Sigma spec. chore: update the related type from `obsoletes` to `obsolete`. chore: update local json schema to the latest version.
32 lines
1.0 KiB
YAML
32 lines
1.0 KiB
YAML
title: Suspicious PowerShell Download - PoshModule
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id: de41232e-12e8-49fa-86bc-c05c7e722df9
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related:
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- id: 65531a81-a694-4e31-ae04-f8ba5bc33759
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type: derived
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status: test
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description: Detects suspicious PowerShell download command
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references:
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- https://learn.microsoft.com/en-us/dotnet/api/system.net.webclient.downloadfile?view=net-8.0
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- https://learn.microsoft.com/en-us/dotnet/api/system.net.webclient.downloadstring?view=net-8.0
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author: Florian Roth (Nextron Systems)
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date: 2017-03-05
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modified: 2023-01-20
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tags:
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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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category: ps_module
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definition: 0ad03ef1-f21b-4a79-8ce8-e6900c54b65b
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detection:
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selection_webclient_:
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ContextInfo|contains: 'System.Net.WebClient'
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selection_function:
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ContextInfo|contains:
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- '.DownloadFile('
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- '.DownloadString('
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condition: all of selection_*
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falsepositives:
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- PowerShell scripts that download content from the Internet
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level: medium
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