Detectionlowtest

Exports Registry Key To a File

Detects the export of the target Registry key to a file.

Convert In Phoenix Studio

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

Oddvar Moe, Sander Wiebing, oscd.communityCreated Wed Oct 07Updated Wed Mar 13f0e53e89-8d22-46ea-9db5-9d4796ee2f8awindows

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_img:
        - Image|endswith: '\regedit.exe'
        - OriginalFileName: 'REGEDIT.EXE'
    selection_cli:
        CommandLine|contains|windash: ' -E '
    filter_1:   # filters to avoid intersection with critical keys rule
        CommandLine|contains:
            - 'hklm'
            - 'hkey_local_machine'
    filter_2:
        CommandLine|endswith:
            - '\system'
            - '\sam'
            - '\security'
    condition: all of selection_* and not all of filter_*