Suspicious Key Manager Access

 1title: Suspicious Key Manager Access
 2id: a4694263-59a8-4608-a3a0-6f8d3a51664c
 3status: test
 4description: Detects the invocation of the Stored User Names and Passwords dialogue (Key Manager)
 5references:
 6    - https://twitter.com/NinjaParanoid/status/1516442028963659777
 7author: Florian Roth (Nextron Systems)
 8date: 2022-04-21
 9modified: 2023-02-09
10tags:
11    - attack.credential-access
12    - attack.t1555.004
13logsource:
14    category: process_creation
15    product: windows
16detection:
17    selection_img:
18        - Image|endswith: '\rundll32.exe'
19        - OriginalFileName: 'RUNDLL32.EXE'
20    selection_cli:
21        CommandLine|contains|all:
22            - 'keymgr'
23            - 'KRShowKeyMgr'
24    condition: all of selection_*
25falsepositives:
26    - Administrative activity
27level: high