InfDefaultInstall.exe .inf Execution — Sigma Rule

Rule metadata and linked tags

Author: frack113. Source status: test; severity: medium. Source dates: 2021-07-13 / 2022-10-09.

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

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 4ae257ff62ff17720afa42a2b59c1ab7c3e9ebe76712896681dbba40903cf1a5

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: InfDefaultInstall.exe .inf Execution
id: ce7cf472-6fcc-490a-9481-3786840b5d9b
status: test
description: Executes SCT script using scrobj.dll from a command in entered into a specially prepared INF file.
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1218/T1218.md#atomic-test-4---infdefaultinstallexe-inf-execution
    - https://lolbas-project.github.io/lolbas/Binaries/Infdefaultinstall/
author: frack113
date: 2021-07-13
modified: 2022-10-09
tags:
    - attack.stealth
    - attack.t1218
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        CommandLine|contains|all:
            - 'InfDefaultInstall.exe '
            - '.inf'
    condition: selection
falsepositives:
    - Unknown
level: medium

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1218/T1218.md#atomic-test-4---infdefaultinstallexe-inf-execution
• https://lolbas-project.github.io/lolbas/Binaries/Infdefaultinstall/