title: Proxy Execution Via Explorer.exe
author: Furkan CALISKAN, @caliskanfurkan_, @oscd_initiative
date: 2020/10/05
description: Attackers can use explorer.exe for evading defense mechanisms
detection:
    SELECTION_1:
        EventID: 1
    SELECTION_2:
        Image: '*\explorer.exe'
    SELECTION_3:
        ParentImage: '*\cmd.exe'
    SELECTION_4:
        CommandLine: '*explorer.exe*'
    condition: (SELECTION_1 and (SELECTION_2) and (SELECTION_3) and (SELECTION_4))
falsepositives:
- Legitimate explorer.exe run from cmd.exe
id: 9eb271b9-24ae-4cd4-9465-19cfc1047f3e
level: low
logsource:
    category: process_creation
    product: windows
references:
- https://twitter.com/CyberRaiju/status/1273597319322058752
status: experimental
tags:
- attack.defense_evasion
- attack.t1218
yml_filename: win_susp_explorer.yml
yml_path: /Users/user/Documents/YamatoSecurity/sigma/rules/windows/process_creation