System Information Discovery Using sw_vers

calendar Dec 21, 2023 · attack.discovery attack.t1082  ·
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Detects the use of "sw_vers" for system information discovery

Sigma rule (View on GitHub)

 1title: System Information Discovery Using sw_vers
 2id: 5de06a6f-673a-4fc0-8d48-bcfe3837b033
 3status: experimental
 4description: Detects the use of "sw_vers" for system information discovery
 5references:
 6    - https://www.virustotal.com/gui/file/d3fa64f63563fe958b75238742d1e473800cb5f49f5cb79d38d4aa3c93709026/behavior
 7    - https://www.virustotal.com/gui/file/03b71eaceadea05bc0eea5cddecaa05f245126d6b16cfcd0f3ba0442ac58dab3/behavior
 8    - https://ss64.com/osx/sw_vers.html
 9author: Joseliyo Sanchez, @Joseliyo_Jstnk
10date: 2023/12/20
11tags:
12    - attack.discovery
13    - attack.t1082
14logsource:
15    product: macos
16    category: process_creation
17detection:
18    # VT Query: 'behavior_processes:"sw_vers" and (behavior_processes:"-productVersion" or behavior_processes:"-productName" or behavior_processes:"-buildVersion") tag:dmg p:5+'
19    selection_image:
20        Image|endswith: '/sw_vers'
21    selection_options:
22        CommandLine|contains:
23            - '-buildVersion'
24            - '-productName'
25            - '-productVersion'
26    condition: all of selection_*
27falsepositives:
28    - Legitimate administrative activities
29level: medium

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