UAC Bypass Using ChangePK and SLUI

calendar Feb 1, 2023 · attack.defense_evasion attack.privilege_escalation attack.t1548.002  ·
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Detects an UAC bypass that uses changepk.exe and slui.exe (UACMe 61)

Sigma rule (View on GitHub)

 1title: UAC Bypass Using ChangePK and SLUI
 2id: 503d581c-7df0-4bbe-b9be-5840c0ecc1fc
 3status: test
 4description: Detects an UAC bypass that uses changepk.exe and slui.exe (UACMe 61)
 5references:
 6    - https://mattharr0ey.medium.com/privilege-escalation-uac-bypass-in-changepk-c40b92818d1b
 7    - https://github.com/hfiref0x/UACME
 8    - https://medium.com/falconforce/falconfriday-detecting-uac-bypasses-0xff16-86c2a9107abf
 9author: Christian Burkard (Nextron Systems)
10date: 2021/08/23
11modified: 2022/10/09
12tags:
13    - attack.defense_evasion
14    - attack.privilege_escalation
15    - attack.t1548.002
16logsource:
17    category: process_creation
18    product: windows
19detection:
20    selection:
21        Image|endswith: '\changepk.exe'
22        ParentImage|endswith: '\slui.exe'
23        IntegrityLevel:
24            - 'High'
25            - 'System'
26    condition: selection
27falsepositives:
28    - Unknown
29level: high

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