Tanaka Zakku
48 lines
1.5 KiB
YAML
48 lines
1.5 KiB
YAML
title: UAC Bypass Using NTFS Reparse Point - Process
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author: Christian Burkard
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date: 2021/08/30
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description: Detects the pattern of UAC Bypass using NTFS reparse point and wusa.exe
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DLL hijacking (UACMe 36)
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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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Image: '*\DismHost.exe'
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SELECTION_2:
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IntegrityLevel: High
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SELECTION_3:
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IntegrityLevel: System
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SELECTION_4:
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CommandLine: '"C:\Windows\system32\wusa.exe" /quiet C:\Users\\*'
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SELECTION_5:
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CommandLine: '*\AppData\Local\Temp\update.msu'
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SELECTION_6:
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ParentCommandLine: '"C:\Windows\system32\dism.exe" /online /quiet /norestart
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/add-package /packagepath:"C:\Windows\system32\pe386" /ignorecheck'
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SELECTION_7:
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CommandLine: '*C:\Users\\*'
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SELECTION_8:
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CommandLine: '*\AppData\Local\Temp\\*'
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SELECTION_9:
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CommandLine: '*\dismhost.exe {*'
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condition: (SELECTION_1 and (SELECTION_2 or SELECTION_3) and ((SELECTION_4 and
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SELECTION_5) or (SELECTION_6 and SELECTION_7 and SELECTION_8 and SELECTION_9
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and SELECTION_10)))
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falsepositives:
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- Unknown
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id: 39ed3c80-e6a1-431b-9df3-911ac53d08a7
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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://github.com/hfiref0x/UACME
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status: experimental
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tags:
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- attack.defense_evasion
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- attack.privilege_escalation
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- attack.t1548.002
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yml_filename: win_uac_bypass_ntfs_reparse_point.yml
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yml_path: /Users/user/Documents/YamatoSecurity/sigma/rules/windows/process_creation
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