Nasreddine Bencherchali
34 lines
1.2 KiB
YAML
34 lines
1.2 KiB
YAML
title: Using AppVLP To Circumvent ASR File Path Rule
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id: 9c7e131a-0f2c-4ae0-9d43-b04f4e266d43
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status: experimental
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description: |
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Application Virtualization Utility is included with Microsoft Office. We are able to abuse "AppVLP" to execute shell commands.
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Normally, this binary is used for Application Virtualization, but we can use it as an abuse binary to circumvent the ASR file path rule folder
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or to mark a file as a system file.
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references:
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- https://lolbas-project.github.io/lolbas/OtherMSBinaries/Appvlp/
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author: Sreeman
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date: 2020/03/13
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modified: 2022/12/29
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tags:
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- attack.t1218
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- attack.defense_evasion
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- attack.execution
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logsource:
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category: process_creation
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product: windows
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detection:
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selection:
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ParentImage|endswith: '\appvlp.exe'
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filter:
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# Based on data from EchoTrail: https://www.echotrail.io/insights/search/appvlp.exe/
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Image|endswith:
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- '\msoasb.exe'
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- '\rundll32.exe'
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#- 'SKYPESERVER.EXE' # Rare comment it out if you experience FP
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#- 'MSOUC.EXE' # Rare comment it out if you experience FP
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condition: selection and not filter
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falsepositives:
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- Unknown
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level: medium
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