proc_creation_win_msdt_follina.yml

title: MSDT Suspicious Command Execution
id: 1b90e772-0e84-45be-a1f4-8bcb7857c876
description: Detects execution of MSDT with required command parameters to execute the Follina Vulnerability.
status: experimental
references:
    - https://twitter.com/nao_sec/status/1530196847679401984?s=20&t=NCOt7Yv2gAr41X0FheqvyA
    - https://twitter.com/MalwareJake/status/1531019245726867457?s=20&t=UV3L0ijkG-yDYl24yXpJIA
    - https://www.scythe.io/library/breaking-follina-msdt-vulnerability
author: 'Christopher Peacock @SecurePeacock, SCYTHE @scythe_io, Jake Williams @MalwareJake'
date: 2022/05/30
tags:
    - attack.defense_evasion
    - attack.t1218
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        Image|endswith: '\msdt.exe'
        CommandLine|contains:
            - 'IT_RebrowseForFile'
            - 'IT_BrowseForFile'
    condition: selection
falsepositives:
    - False positives depend on scripts used in the monitored environment
level: medium