103 lines
3.2 KiB
YAML
103 lines
3.2 KiB
YAML
title: Suspicious PowerShell Parent Process
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author: Teymur Kheirkhabarov, Harish Segar (rule)
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date: 2020/03/20
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description: Detects a suspicious parents of powershell.exe
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detection:
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SELECTION_1:
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EventID: 1
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SELECTION_10:
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ParentImage: '*\msaccess.exe'
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SELECTION_11:
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ParentImage: '*\mspub.exe'
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SELECTION_12:
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ParentImage: '*\visio.exe'
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SELECTION_13:
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ParentImage: '*\outlook.exe'
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SELECTION_14:
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ParentImage: '*\amigo.exe'
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SELECTION_15:
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ParentImage: '*\chrome.exe'
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SELECTION_16:
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ParentImage: '*\firefox.exe'
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SELECTION_17:
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ParentImage: '*\iexplore.exe'
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SELECTION_18:
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ParentImage: '*\microsoftedgecp.exe'
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SELECTION_19:
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ParentImage: '*\microsoftedge.exe'
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SELECTION_2:
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ParentImage: '*\mshta.exe'
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SELECTION_20:
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ParentImage: '*\browser.exe'
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SELECTION_21:
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ParentImage: '*\vivaldi.exe'
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SELECTION_22:
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ParentImage: '*\safari.exe'
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SELECTION_23:
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ParentImage: '*\sqlagent.exe'
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SELECTION_24:
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ParentImage: '*\sqlserver.exe'
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SELECTION_25:
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ParentImage: '*\sqlservr.exe'
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SELECTION_26:
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ParentImage: '*\w3wp.exe'
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SELECTION_27:
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ParentImage: '*\httpd.exe'
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SELECTION_28:
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ParentImage: '*\nginx.exe'
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SELECTION_29:
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ParentImage: '*\php-cgi.exe'
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SELECTION_3:
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ParentImage: '*\rundll32.exe'
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SELECTION_30:
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ParentImage: '*\jbosssvc.exe'
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SELECTION_31:
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ParentImage: '*MicrosoftEdgeSH.exe'
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SELECTION_32:
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ParentImage: '*tomcat*'
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SELECTION_33:
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CommandLine: '*powershell*'
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SELECTION_34:
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CommandLine: '*pwsh*'
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SELECTION_35:
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Description: Windows PowerShell
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SELECTION_36:
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Product: PowerShell Core 6
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SELECTION_4:
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ParentImage: '*\regsvr32.exe'
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SELECTION_5:
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ParentImage: '*\services.exe'
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SELECTION_6:
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ParentImage: '*\winword.exe'
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SELECTION_7:
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ParentImage: '*\wmiprvse.exe'
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SELECTION_8:
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ParentImage: '*\powerpnt.exe'
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SELECTION_9:
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ParentImage: '*\excel.exe'
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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 or SELECTION_8 or SELECTION_9 or SELECTION_10
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or SELECTION_11 or SELECTION_12 or SELECTION_13 or SELECTION_14 or SELECTION_15
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or SELECTION_16 or SELECTION_17 or SELECTION_18 or SELECTION_19 or SELECTION_20
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or SELECTION_21 or SELECTION_22 or SELECTION_23 or SELECTION_24 or SELECTION_25
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or SELECTION_26 or SELECTION_27 or SELECTION_28 or SELECTION_29 or SELECTION_30
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or SELECTION_31) or SELECTION_32) and ((SELECTION_33 or SELECTION_34) or SELECTION_35
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or SELECTION_36))
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falsepositives:
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- Other scripts
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id: 754ed792-634f-40ae-b3bc-e0448d33f695
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level: high
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logsource:
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category: process_creation
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product: windows
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references:
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- https://speakerdeck.com/heirhabarov/hunting-for-powershell-abuse?slide=26
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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_parent_process.yml
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yml_path: /Users/user/Documents/YamatoSecurity/sigma/rules/windows/process_creation
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