Potentially Suspicious Electron Application CommandLine (via process_creation)

title: Potentially Suspicious Electron Application CommandLine (via process_creation)
id: fedd1cc8-7cf3-532b-be56-7b51b9e11ce9
status: stable
description: This rule detects potentially anomalous CommandLine of electron apps (teams, discord, slack, etc.). This could be a sign of misuse to proxy execution through a signed binary.
references:
    - https://positive.security/blog/ms-officecmd-rce
    - https://lolbas-project.github.io/lolbas/Binaries/Teams/
    - https://lolbas-project.github.io/lolbas/Binaries/Msedge/
    - https://lolbas-project.github.io/lolbas/Binaries/msedgewebview2/
    - https://medium.com/@MalFuzzer/one-electron-to-rule-them-all-dc2e9b263daf
    - https://chromium.googlesource.com/chromium/chromium/+/master/content/public/common/content_switches.cc
author: Huntrule Team
date: 2026-02-21
tags:
    - attack.execution
    - attack.defense-evasion
    - attack.t1218
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Image|endswith:
              - '\chrome.exe'
              - '\code.exe'
              - '\discord.exe'
              - '\GitHubDesktop.exe'
              - '\keybase.exe'
              - '\msedge_proxy.exe'
              - '\msedge.exe'
              - '\msedgewebview2.exe'
              - '\msteams.exe'
              - '\slack.exe'
              - '\Teams.exe'
        - OriginalFileName:
              - 'chrome.exe'
              - 'code.exe'
              - 'discord.exe'
              - 'GitHubDesktop.exe'
              - 'keybase.exe'
              - 'msedge_proxy.exe'
              - 'msedge.exe'
              - 'msedgewebview2.exe'
              - 'msteams.exe'
              - 'slack.exe'
              - 'Teams.exe'
    selection_cli:
        CommandLine|contains:
            - '--browser-subprocess-path'
            - '--gpu-launcher'
            - '--renderer-cmd-prefix'
            - '--utility-cmd-prefix'
    condition: all of selection_*
falsepositives:
    - Unknown
level: medium