Detectionhightest

Potential Manage-bde.wsf Abuse To Proxy Execution

Detects potential abuse of the "manage-bde.wsf" script as a LOLBIN to proxy execution

Convert In Phoenix Studio

Open this Sigma rule in the converter with the YAML preloaded and ready for backend selection.

oscd.community, Natalia Shornikova, Nasreddine Bencherchali (Nextron Systems)Created Tue Oct 13Updated Fri Feb 03c363385c-f75d-4753-a108-c1a8e28bdbdawindows

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_wscript_img:
        - Image|endswith: '\wscript.exe'
        - OriginalFileName: 'wscript.exe'
    selection_wscript_cli:
        CommandLine|contains: 'manage-bde.wsf'
    selection_parent:
        ParentImage|endswith:
            - '\cscript.exe'
            - '\wscript.exe'
        ParentCommandLine|contains: 'manage-bde.wsf'
    selection_filter_cmd:
        Image|endswith: '\cmd.exe'
    condition: all of selection_wscript_* or (selection_parent and not selection_filter_cmd)