Potential Persistence Via GlobalFlags — Sigma Rule

Rule metadata and linked tags

Author: Karneades, Jonhnathan Ribeiro, Florian Roth. Source status: test; severity: high. Source dates: 2018-04-11 / 2023-06-05.

{
  "category": "registry_set",
  "product": "windows"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 4486765aad544d6f61d620d353f01f2f38296c5aa838c84b5a60b8d51cef3527

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: Potential Persistence Via GlobalFlags
id: 36803969-5421-41ec-b92f-8500f79c23b0
related:
    - id: c81fe886-cac0-4913-a511-2822d72ff505
      type: obsolete
status: test
description: Detects registry persistence technique using the GlobalFlags and SilentProcessExit keys
references:
    - https://oddvar.moe/2018/04/10/persistence-using-globalflags-in-image-file-execution-options-hidden-from-autoruns-exe/
    - https://www.deepinstinct.com/2021/02/16/lsass-memory-dumps-are-stealthier-than-ever-before-part-2/
author: Karneades, Jonhnathan Ribeiro, Florian Roth
date: 2018-04-11
modified: 2023-06-05
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.t1546.012
    - car.2013-01-002
logsource:
    category: registry_set
    product: windows
detection:
    selection_global_flag:
        TargetObject|contains|all:
            - '\Microsoft\Windows NT\CurrentVersion\'
            - '\Image File Execution Options\'
            - '\GlobalFlag'
    selection_silent_process:
        TargetObject|contains|all:
            - '\Microsoft\Windows NT\CurrentVersion\'
            - '\SilentProcessExit\'
        TargetObject|contains:
            - '\ReportingMode'
            - '\MonitorProcess'
    condition: 1 of selection_*
falsepositives:
    - Unknown
level: high

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://oddvar.moe/2018/04/10/persistence-using-globalflags-in-image-file-execution-options-hidden-from-autoruns-exe/
• https://www.deepinstinct.com/2021/02/16/lsass-memory-dumps-are-stealthier-than-ever-before-part-2/