68 lines
1.6 KiB
YAML
68 lines
1.6 KiB
YAML
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title: File Created with System Process Name
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author: Sander Wiebing
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date: 2020/05/26
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description: Detects the creation of an executable with a system process name in a
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suspicious folder
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detection:
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SELECTION_1:
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EventID: 11
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SELECTION_2:
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TargetFilename:
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- '*\svchost.exe'
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- '*\rundll32.exe'
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- '*\services.exe'
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- '*\powershell.exe'
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- '*\regsvr32.exe'
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- '*\spoolsv.exe'
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- '*\lsass.exe'
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- '*\smss.exe'
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- '*\csrss.exe'
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- '*\conhost.exe'
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- '*\wininit.exe'
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- '*\lsm.exe'
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- '*\winlogon.exe'
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- '*\explorer.exe'
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- '*\taskhost.exe'
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- '*\Taskmgr.exe'
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- '*\taskmgr.exe'
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- '*\sihost.exe'
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- '*\RuntimeBroker.exe'
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- '*\runtimebroker.exe'
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- '*\smartscreen.exe'
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- '*\dllhost.exe'
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- '*\audiodg.exe'
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- '*\wlanext.exe'
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SELECTION_3:
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TargetFilename:
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- C:\Windows\System32\\*
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- C:\Windows\system32\\*
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- C:\Windows\SysWow64\\*
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- C:\Windows\SysWOW64\\*
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- C:\Windows\winsxs\\*
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- C:\Windows\WinSxS\\*
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- \SystemRoot\System32\\*
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SELECTION_4:
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Image: '*\Windows\System32\dism.exe'
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SELECTION_5:
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TargetFilename: C:\$WINDOWS.~BT\\*
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SELECTION_6:
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Image: C:\$WINDOWS.~BT\Sources\SetupHost.exe
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condition: (SELECTION_1 and (SELECTION_2 and not (SELECTION_3 and SELECTION_4))
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and not (SELECTION_5 and SELECTION_6))
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falsepositives:
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- System processes copied outside the default folder
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fields:
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- Image
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id: d5866ddf-ce8f-4aea-b28e-d96485a20d3d
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level: high
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logsource:
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category: file_event
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product: windows
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modified: 2021/10/28
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status: test
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tags:
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- attack.defense_evasion
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- attack.t1036
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- attack.t1036.005
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