Suspicious Reg Add Open Command

 1title: Suspicious Reg Add Open Command
 2id: dd3ee8cc-f751-41c9-ba53-5a32ed47e563
 3status: test
 4description: Threat actors performed dumping of SAM, SECURITY and SYSTEM registry hives using DelegateExecute key
 5references:
 6    - https://thedfirreport.com/2021/12/13/diavol-ransomware/
 7author: frack113
 8date: 2021-12-20
 9modified: 2022-12-25
10tags:
11    - attack.credential-access
12    - attack.t1003
13logsource:
14    category: process_creation
15    product: windows
16detection:
17    selection_1:
18        CommandLine|contains|all:
19            - 'reg'
20            - 'add'
21            - 'hkcu\software\classes\ms-settings\shell\open\command'
22            - '/ve '
23            - '/d'
24    selection_2:
25        CommandLine|contains|all:
26            - 'reg'
27            - 'add'
28            - 'hkcu\software\classes\ms-settings\shell\open\command'
29            - '/v'
30            - 'DelegateExecute'
31    selection_3:
32        CommandLine|contains|all:
33            - 'reg'
34            - 'delete'
35            - 'hkcu\software\classes\ms-settings'
36    condition: 1 of selection_*
37falsepositives:
38    - Unknown
39level: medium