Potential KamiKakaBot Activity - Winlogon Shell Persistence

 1title: Potential KamiKakaBot Activity - Winlogon Shell Persistence
 2id: c9b86500-1ec2-4de6-9120-d744c8fb5caf
 3status: experimental
 4description: |
 5        Detects changes to the "Winlogon" registry key where a process will set the value of the "Shell" to a value that was observed being used by KamiKakaBot samples in order to achieve persistence.
 6references:
 7    - https://www.nextron-systems.com/2024/03/22/unveiling-kamikakabot-malware-analysis/
 8author: Nasreddine Bencherchali (Nextron Systems), X__Junior
 9date: 2024-03-22
10tags:
11    - attack.persistence
12    - attack.t1547.001
13    - detection.emerging-threats
14logsource:
15    category: registry_set
16    product: windows
17detection:
18    selection:
19        TargetObject|endswith: '\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell'
20        Details|contains|all:
21            - '-nop -w h'
22            - '$env'
23            - 'explorer.exe'
24            - 'Start-Process'
25    condition: selection
26falsepositives:
27    - Unlikely
28level: high