SigmaHQ/rules/windows/builtin/win_susp_raccess_sensitive_fext.yml

title: Suspicious access to sensitive file extensions
description: Detects known sensitive file extensions
author: Samir Bousseaden
tags:
    - attack.collection
logsource:
    product: windows
    service: security
detection:
    selection:
        EventID:
            - 5145
        RelativeTargetName:
            - '*.pst'
            - '*.ost'
            - '*.msg'
            - '*.nst'
            - '*.oab'
            - '*.edb'
            - '*.nsf' 
            - '*.bak'
            - '*.dmp'
            - '*.kirbi'
            - '*\ntds.dit'
            - '*\groups.xml'
            - '*.rdp'
    condition: selection
falsepositives:
    - Help Desk operator doing backup or re-imaging end user machine or pentest or backup software
level: high