Unsigned Module Loaded by ClickOnce Application — Sigma Rule

Rule metadata and linked tags

Author: @SerkinValery. Source status: test; severity: medium. Source dates: 2023-06-08 / not supplied.

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

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 9ffd7f5564c689e7aaf7a7ab306cd65e970da211fd2a778e240183e4347c11f6

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: Unsigned Module Loaded by ClickOnce Application
id: 060d5ad4-3153-47bb-8382-43e5e29eda92
status: test
description: Detects unsigned module load by ClickOnce application.
references:
    - https://posts.specterops.io/less-smartscreen-more-caffeine-ab-using-clickonce-for-trusted-code-execution-1446ea8051c5
author: '@SerkinValery'
date: 2023-06-08
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.execution
    - attack.stealth
    - attack.t1574.001
logsource:
    category: image_load
    product: windows
detection:
    selection_path:
        Image|contains: '\AppData\Local\Apps\2.0\'
    selection_sig_status:
        - Signed: 'false'
        - SignatureStatus: 'Expired'
    condition: all of selection_*
falsepositives:
    - Unlikely
level: medium

Original YAML and metadata in JSON

False positives

• Unlikely

Source references

• https://posts.specterops.io/less-smartscreen-more-caffeine-ab-using-clickonce-for-trusted-code-execution-1446ea8051c5