SigmaHQ/rules/windows/process_creation/win_uac_fodhelper.yml

title: Bypass UAC via Fodhelper.exe
id: 7f741dcf-fc22-4759-87b4-9ae8376676a2
description: Identifies use of Fodhelper.exe to bypass User Account Control. Adversaries use this technique to execute privileged processes.
status: experimental
author: E.M. Anhaus (orignally from Atomic Blue Detections, Tony Lambert), oscd.community
date: 2019/10/24
modified: 2019/11/11
references:
    - https://eqllib.readthedocs.io/en/latest/analytics/e491ce22-792f-11e9-8f5c-d46d6d62a49e.html
    - https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1088/T1088.md
tags:
    - attack.privilege_escalation
    - attack.t1548.002
    - attack.t1088      # an old one
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        ParentImage|endswith: '\fodhelper.exe'
    condition: selection
fields:
    - ComputerName
    - User
    - CommandLine
falsepositives:
    - Legitimate use of fodhelper.exe utility by legitimate user
level: high