Arbitrary File Download Via MSEDGE_PROXY.EXE

Description

Detects usage of "msedge_proxy.exe" to download arbitrary files

Query · sigma

selection_img:
- Image|endswith: \msedge_proxy.exe
- OriginalFileName: msedge_proxy.exe
selection_cli:
  CommandLine|contains:
  - http://
  - https://
condition: all of selection_*

Known false positives

  • Unknown
Raw source Arbitrary File Download Via MSEDGE_PROXY.EXE · Sigma
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Published by SigmaHQ/sigma ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified. 
title: Arbitrary File Download Via MSEDGE_PROXY.EXE
id: e84d89c4-f544-41ca-a6af-4b92fd38b023
status: test
description: Detects usage of "msedge_proxy.exe" to download arbitrary files
references:
    - https://lolbas-project.github.io/lolbas/Binaries/msedge_proxy/
author: Swachchhanda Shrawan Poudel
date: 2023-11-09
tags:
    - attack.execution
    - attack.stealth
    - attack.t1218
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Image|endswith: '\msedge_proxy.exe'
        - OriginalFileName: 'msedge_proxy.exe'
    selection_cli:
        CommandLine|contains:
            - 'http://'
            - 'https://'
    condition: all of selection_*
falsepositives:
    - Unknown
level: medium

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