File Download with Headless Browser

calendar Aug 14, 2025 · attack.command-and-control attack.t1105 attack.t1564.003  ·
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Detects execution of chromium based browser in headless mode using the "dump-dom" command line to download files

Sigma rule (View on GitHub)

 1title: File Download with Headless Browser
 2id: 0e8cfe08-02c9-4815-a2f8-0d157b7ed33e
 3related:
 4    - id: ef9dcfed-690c-4c5d-a9d1-482cd422225c
 5      type: derived
 6status: test
 7description: Detects execution of chromium based browser in headless mode using the "dump-dom" command line to download files
 8references:
 9    - https://twitter.com/mrd0x/status/1478234484881436672?s=12
10    - https://www.trendmicro.com/en_us/research/23/e/managed-xdr-investigation-of-ducktail-in-trend-micro-vision-one.html
11author: Sreeman, Florian Roth (Nextron Systems)
12date: 2022-01-04
13modified: 2023-05-12
14tags:
15    - attack.command-and-control
16    - attack.t1105
17    - attack.t1564.003
18logsource:
19    category: process_creation
20    product: windows
21detection:
22    selection:
23        Image|endswith:
24            - '\brave.exe'
25            - '\chrome.exe'
26            - '\msedge.exe'
27            - '\opera.exe'
28            - '\vivaldi.exe'
29        CommandLine|contains|all:
30            - '--headless'
31            - 'dump-dom'
32            - 'http'
33    condition: selection
34falsepositives:
35    - Unknown
36level: high

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