Detectionlowtest

Windows Processes Suspicious Parent Directory

Detect suspicious parent processes of well-known Windows processes

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vburovCreated Sat Feb 23Updated Thu Mar 0696036718-71cc-4027-a538-d1587e0006a7windows

Log Source

WindowsProcess Creation

ProductWindows← raw: windows

CategoryProcess Creation← raw: process_creation

Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.

Detection Logic

detection:
    selection:
        Image|endswith:
            - '\svchost.exe'
            - '\taskhost.exe'
            - '\lsm.exe'
            - '\lsass.exe'
            - '\services.exe'
            - '\lsaiso.exe'
            - '\csrss.exe'
            - '\wininit.exe'
            - '\winlogon.exe'
    filter_sys:
        - ParentImage|endswith:
              - '\SavService.exe'
              - '\ngen.exe'
        - ParentImage|contains:
              - '\System32\'
              - '\SysWOW64\'
    filter_msmpeng:
        ParentImage|contains:
            - '\Windows Defender\'
            - '\Microsoft Security Client\'
        ParentImage|endswith: '\MsMpEng.exe'
    filter_null:
        - ParentImage: null
        - ParentImage:
              - ''
              - '-'
    condition: selection and not 1 of filter_*