Browser Execution In Headless Mode

calendar Oct 4, 2023 · attack.command_and_control attack.t1105  ·
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Detects execution of Chromium based browser in headless mode

Sigma rule (View on GitHub)

 1title: Browser Execution In Headless Mode
 2id: ef9dcfed-690c-4c5d-a9d1-482cd422225c
 3related:
 4    - id: 0e8cfe08-02c9-4815-a2f8-0d157b7ed33e
 5      type: derived
 6status: test
 7description: Detects execution of Chromium based browser in headless mode
 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: Nasreddine Bencherchali (Nextron Systems)
12date: 2023/09/12
13tags:
14    - attack.command_and_control
15    - attack.t1105
16logsource:
17    category: process_creation
18    product: windows
19detection:
20    selection:
21        Image|endswith:
22            - '\brave.exe'
23            - '\chrome.exe'
24            - '\msedge.exe'
25            - '\opera.exe'
26            - '\vivaldi.exe'
27        CommandLine|contains: '--headless'
28    condition: selection
29falsepositives:
30    - Unknown
31level: medium

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