Wow6432Node Windows NT CurrentVersion Autorun Keys Modification

Detects modification of autostart extensibility point (ASEP) in registry.

Sigma rule (View on GitHub)

 1title: Wow6432Node Windows NT CurrentVersion Autorun Keys Modification
 2id: 480421f9-417f-4d3b-9552-fd2728443ec8
 3related:
 4    - id: 17f878b8-9968-4578-b814-c4217fc5768c
 5      type: obsoletes
 6status: test
 7description: Detects modification of autostart extensibility point (ASEP) in registry.
 8references:
 9    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1547.001/T1547.001.md
10    - https://learn.microsoft.com/en-us/sysinternals/downloads/autoruns
11    - https://gist.github.com/GlebSukhodolskiy/0fc5fa5f482903064b448890db1eaf9d # a list with registry keys
12author: Victor Sergeev, Daniil Yugoslavskiy, Gleb Sukhodolskiy, Timur Zinniatullin, oscd.community, Tim Shelton, frack113 (split)
13date: 2019/10/25
14modified: 2023/08/17
15tags:
16    - attack.persistence
17    - attack.t1547.001
18logsource:
19    category: registry_set
20    product: windows
21detection:
22    wow_nt_current_version_base:
23        TargetObject|contains: '\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion'
24    wow_nt_current_version:
25        TargetObject|contains:
26            - '\Windows\Appinit_Dlls'
27            - '\Image File Execution Options'
28            - '\Drivers32'
29    filter:
30        Details:
31            - '(Empty)'
32            - '\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options'
33    condition: wow_nt_current_version_base and wow_nt_current_version and not filter
34fields:
35    - SecurityID
36    - ObjectName
37    - OldValueType
38    - NewValueType
39falsepositives:
40    - Legitimate software automatically (mostly, during installation) sets up autorun keys for legitimate reason
41    - Legitimate administrator sets up autorun keys for legitimate reason
42level: medium

References

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