Detectionmediumtest

Suspicious Cabinet File Execution Via Msdt.EXE

Detects execution of msdt.exe using the "cab" flag which could indicates suspicious diagcab files with embedded answer files leveraging CVE-2022-30190

Convert In Phoenix Studio

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

Launch

Nasreddine Bencherchali (Nextron Systems), GossiTheDog, François HubautCreated Tue Jun 21Updated Wed Mar 13dc4576d4-7467-424f-9eee-fd2b02855fe0windows

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: '\msdt.exe'
        - OriginalFileName: 'msdt.exe'
    selection_cmd:
        CommandLine|contains|windash: ' -cab '
    condition: all of selection_*