Hyper-V Virtual Machine Discovery Shutdown via Powershell Cmdlets

 1title: Hyper-V Virtual Machine Discovery Shutdown via Powershell Cmdlets
 2id: d42df972-2f45-44b0-8566-3de71b9ed3e9
 3status: experimental
 4description: Detects powershell process used to find and shut down local Hyper-V VMs using the Stop-VM cmdlet, as documented in the 2024 Morphisec report on Cicada3301 ransomware.
 5references:
 6    - https://blog.morphisec.com/cicada3301-ransomware-threat-analysis
 7related:
 8  - id: 42d36aa1-3240-4db0-8257-e0118dcdd9cd # Suspicious Hyper-V Cmdlets - SigmaHQ/frack113
 9    type: derived
10author: 'Micah Babinski, Based on Morphisec report by Michael Gorelik (@smgoreli)'
11date: 2024-09-07
12tags:
13    - attack.defense-evasion
14    - attack.impact
15    - attack.t1578
16    - attack.t1578.003
17    - attack.t1529
18logsource:
19    category: process_creation
20    product: windows
21detection:
22    selection_img:
23        - Image|endswith: '\powershell.exe'
24        - OriginalFileName: 'powershell.exe'
25    selection_cmd:
26        CommandLine|contains|all:
27            - 'Get-VM'
28            - 'Stop-VM'
29            - '-Force'
30    condition: all of selection_*
31falsepositives:
32    - Unknown
33level: medium```