title: Executables Started in Suspicious Folder
id: 7a38aa19-86a9-4af7-ac51-6bfe4e59f254
status: experimental
description: Detects process starts of binaries from a suspicious folder
author: Florian Roth
date: 2017/10/14
modified: 2020/11/28
references:
    - https://github.com/mbevilacqua/appcompatprocessor/blob/master/AppCompatSearch.txt
    - https://www.secureworks.com/research/bronze-butler-targets-japanese-businesses
    - https://www.crowdstrike.com/resources/reports/2019-crowdstrike-global-threat-report/
    - https://github.com/ThreatHuntingProject/ThreatHunting/blob/master/hunts/suspicious_process_creation_via_windows_event_logs.md
tags:
    - attack.defense_evasion
    - attack.t1036
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        - Image|startswith:
            - 'C:\PerfLogs\'
            - 'C:\$Recycle.bin\'
            - 'C:\Intel\Logs\'
            - 'C:\Users\Default\'
            - 'C:\Users\Public\'
            - 'C:\Users\NetworkService\'
            - 'C:\Windows\Fonts\'
            - 'C:\Windows\Debug\'
            - 'C:\Windows\Media\'
            - 'C:\Windows\Help\'
            - 'C:\Windows\addins\'
            - 'C:\Windows\repair\'
            - 'C:\Windows\security\'
            - 'C:\Windows\system32\config\systemprofile\'
            - 'C:\Windows\Tasks\'
            - 'C:\Windows\System32\Tasks\'
        - Image|contains: '\RSA\MachineKeys\'
    condition: selection
falsepositives:
    - Unknown
level: high