DLL Execution Via Register-cimprovider.exe — Sigma Rule

Rule metadata and linked tags

Author: Ivan Dyachkov, Yulia Fomina, oscd.community. Source status: test; severity: medium. Source dates: 2020-10-07 / 2021-11-27.

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

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: c11a9101fc26ad98e9042355711286b1deb98e0a6d785825ad67b935cf9c11c6

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: DLL Execution Via Register-cimprovider.exe
id: a2910908-e86f-4687-aeba-76a5f996e652
status: test
description: Detects using register-cimprovider.exe to execute arbitrary dll file.
references:
    - https://twitter.com/PhilipTsukerman/status/992021361106268161
    - https://lolbas-project.github.io/lolbas/Binaries/Register-cimprovider/
author: Ivan Dyachkov, Yulia Fomina, oscd.community
date: 2020-10-07
modified: 2021-11-27
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.execution
    - attack.stealth
    - attack.t1574
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        Image|endswith: '\register-cimprovider.exe'
        CommandLine|contains|all:
            - '-path'
            - 'dll'
    condition: selection
falsepositives:
    - Unknown
level: medium

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://twitter.com/PhilipTsukerman/status/992021361106268161
• https://lolbas-project.github.io/lolbas/Binaries/Register-cimprovider/