title: HackTool - SharpUp PrivEsc Tool Execution
id: c484e533-ee16-4a93-b6ac-f0ea4868b2f1
status: test
description: Detects the use of SharpUp, a tool for local privilege escalation
references:
    - https://github.com/GhostPack/SharpUp
author: Florian Roth (Nextron Systems)
date: 2022-08-20
modified: 2023-02-13
tags:
    - attack.persistence
    - attack.privilege-escalation
    - attack.discovery
    - attack.execution
    - attack.stealth
    - attack.t1615
    - attack.t1569.002
    - attack.t1574.005
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        - Image|endswith: '\SharpUp.exe'
        - Description: 'SharpUp'
        - CommandLine|contains:
              - 'HijackablePaths'
              - 'UnquotedServicePath'
              - 'ProcessDLLHijack'
              - 'ModifiableServiceBinaries'
              - 'ModifiableScheduledTask'
              - 'DomainGPPPassword'
              - 'CachedGPPPassword'
    condition: selection
falsepositives:
    - Unknown
level: critical

title: Setup16.EXE Execution With Custom .Lst File
id: 99c8be4f-3087-4f9f-9c24-8c7e257b442e
status: test
description: |
    Detects the execution of "Setup16.EXE" and old installation utility with a custom ".lst" file.
    These ".lst" file can contain references to external program that "Setup16.EXE" will execute.
    Attackers and adversaries might leverage this as a living of the land utility.
references:
    - https://www.hexacorn.com/blog/2024/10/12/the-sweet16-the-oldbin-lolbin-called-setup16-exe/
author: frack113
date: 2024-12-01
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.execution
    - attack.stealth
    - attack.t1574.005
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        ParentImage: 'C:\Windows\SysWOW64\setup16.exe'
        ParentCommandLine|contains: ' -m '
    filter_optional_valid_path:
        Image|startswith: 'C:\~MSSETUP.T\'
    condition: selection and not 1 of filter_optional_*
falsepositives:
    - On modern Windows system, the "Setup16" utility is practically never used, hence false positive should be very rare.
level: medium