Automated Collection Bookmarks Using Get-ChildItem PowerShell

calendar Jan 4, 2023 · attack.discovery attack.t1217  ·
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Adversaries may enumerate browser bookmarks to learn more about compromised hosts. Browser bookmarks may reveal personal information about users (ex: banking sites, interests, social media, etc.) as well as details about internal network resources such as servers, tools/dashboards, or other related infrastructure.

Sigma rule (View on GitHub)

 1title: Automated Collection Bookmarks Using Get-ChildItem PowerShell
 2id: e0565f5d-d420-4e02-8a68-ac00d864f9cf
 3status: test
 4description: |
 5    Adversaries may enumerate browser bookmarks to learn more about compromised hosts.
 6    Browser bookmarks may reveal personal information about users (ex: banking sites, interests, social media, etc.) as well as details about
 7    internal network resources such as servers, tools/dashboards, or other related infrastructure.    
 8references:
 9    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1217/T1217.md
10author: frack113
11date: 2021/12/13
12modified: 2022/12/25
13tags:
14    - attack.discovery
15    - attack.t1217
16logsource:
17    product: windows
18    category: ps_script
19    definition: 'Requirements: Script Block Logging must be enabled'
20detection:
21    selection:
22        ScriptBlockText|contains|all:
23            - 'Get-ChildItem'
24            - ' -Recurse '
25            - ' -Path '
26            - ' -Filter Bookmarks'
27            - ' -ErrorAction SilentlyContinue'
28            - ' -Force'
29    condition: selection
30falsepositives:
31    - Unknown
32level: low

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