Windows Binary Executed From WSL

 1title: Windows Binary Executed From WSL
 2id: ed825c86-c009-4014-b413-b76003e33d35
 3status: test
 4description: Detects the execution of Windows binaries from within a WSL instance. This could be used to masquerade parent-child relationships
 5references:
 6    - Internal Research
 7author: Nasreddine Bencherchali (Nextron Systems)
 8date: 2023/02/14
 9tags:
10    - attack.execution
11    - attack.defense_evasion
12    - attack.t1202
13logsource:
14    category: process_creation
15    product: windows
16detection:
17    selection:
18        Image|re: '[a-zA-Z]:\\'
19        CurrentDirectory|contains: '\\\\wsl.localhost' # Note: programs not supporting UNC paths (example: cmd.exe). Will default to another location
20    condition: selection
21falsepositives:
22    - Unknown
23level: medium