SigmaHQ/rules/windows/image_load/sysmon_uac_bypass_via_dism.yml
2021-07-01 12:18:30 +05:45

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YAML

title: UAC Bypass With Fake DLL
id: a5ea83a7-05a5-44c1-be2e-addccbbd8c03
status: experimental
description: Attempts to load dismcore.dll after dropping it
references:
- https://steemit.com/utopian-io/@ah101/uac-bypassing-utility
tags:
- attack.persistence
- attack.defense_evasion
- attack.privilege_escalation
- attack.t1548.002
- attack.t1574.002
author: oscd.community, Dmitry Uchakin
date: 2020/10/06
logsource:
category: image_load
product: windows
detection:
selection:
Image|endswith:
- '\dism.exe'
ImageLoaded|endswith:
- '\dismcore.dll'
filter:
ImageLoaded:
- 'C:\Windows\System32\Dism\dismcore.dll'
condition: selection
falsepositives:
- Pentests
- Actions of a legitimate telnet client
level: high