Suspicious Invoke-Item From Mount-DiskImage

 1title: Suspicious Invoke-Item From Mount-DiskImage
 2id: 902cedee-0398-4e3a-8183-6f3a89773a96
 3status: test
 4description: Adversaries may abuse container files such as disk image (.iso, .vhd) file formats to deliver malicious payloads that may not be tagged with MOTW.
 5references:
 6    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1553.005/T1553.005.md#atomic-test-2---mount-an-iso-image-and-run-executable-from-the-iso
 7    - https://learn.microsoft.com/en-us/powershell/module/storage/mount-diskimage?view=windowsserver2022-ps
 8author: frack113
 9date: 2022-02-01
10tags:
11    - attack.defense-evasion
12    - attack.t1553.005
13logsource:
14    product: windows
15    category: ps_script
16    definition: 'Requirements: Script Block Logging must be enabled'
17detection:
18    selection:
19        ScriptBlockText|contains|all:
20            - 'Mount-DiskImage '
21            - '-ImagePath '
22            - Get-Volume
23            - '.DriveLetter'
24            - 'invoke-item '
25            - '):\'
26    condition: selection
27falsepositives:
28    - Legitimate PowerShell scripts
29level: medium

References

• atomic-red-team/atomics/T1553.005/T1553.005.md at f339e7da7d05f6057fdfcdd3742bfcf365fee2a9 · redcanaryco/atomic-red-team

  

  Small and highly portable detection tests based on MITRE's ATT&CK. - redcanaryco/atomic-red-team

  
  Read More

• Mount-DiskImage (Storage)

  

  Use this topic to help manage Windows and Windows Server technologies with Windows PowerShell.

  
  Read More

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