GUI Input Capture - macOS

Detects attempts to use system dialog prompts to capture user credentials

Sigma rule (View on GitHub)

 1title: GUI Input Capture - macOS
 2id: 60f1ce20-484e-41bd-85f4-ac4afec2c541
 3status: test
 4description: Detects attempts to use system dialog prompts to capture user credentials
 5references:
 6    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1056.002/T1056.002.md
 7    - https://scriptingosx.com/2018/08/user-interaction-from-bash-scripts/
 8author: remotephone, oscd.community
 9date: 2020-10-13
10modified: 2022-12-25
11tags:
12    - attack.credential-access
13    - attack.t1056.002
14logsource:
15    product: macos
16    category: process_creation
17detection:
18    selection1:
19        Image: '/usr/sbin/osascript'
20    selection2:
21        CommandLine|contains|all:
22            - '-e'
23            - 'display'
24            - 'dialog'
25            - 'answer'
26    selection3:
27        CommandLine|contains:
28            - 'admin'
29            - 'administrator'
30            - 'authenticate'
31            - 'authentication'
32            - 'credentials'
33            - 'pass'
34            - 'password'
35            - 'unlock'
36    condition: all of selection*
37falsepositives:
38    - Legitimate administration tools and activities
39level: low

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