title: Emotet Process Creation
status: experimental
description: Detects all Emotet like process executions that are not covered by the more generic rules
author: Florian Roth
date: 2019/09/30
modified: 2019/10/16
references:
    - https://app.any.run/tasks/e13ab713-64cf-4b23-ad93-6dceaa5429ac/
    - https://app.any.run/tasks/81f3c28c-c686-425d-8a2b-a98198d244e1/
    - https://app.any.run/tasks/97f875e8-0e08-4328-815f-055e971ba754/
    - https://app.any.run/tasks/84fc9b4a-ea2b-47b1-8aa6-9014402dfb56/
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        CommandLine:
            - '* -e* PAA*'
            - '*JABlAG4AdgA6AHUAcwBlAHIAcAByAG8AZgBpAGwAZQ*'  # $env:userprofile
            - '*QAZQBuAHYAOgB1AHMAZQByAHAAcgBvAGYAaQBsAGUA*'  # $env:userprofile
            - '*kAGUAbgB2ADoAdQBzAGUAcgBwAHIAbwBmAGkAbABlA*'  # $env:userprofile
            - '*IgAoACcAKgAnACkAOwAkA*'  # "('*');$
            - '*IAKAAnACoAJwApADsAJA*'  # "('*');$
            - '*iACgAJwAqACcAKQA7ACQA*'  # "('*');$
            - '*JABGAGwAeAByAGgAYwBmAGQ*'
    condition: selection
fields:
    - CommandLine
    - ParentCommandLine
falsepositives:
    - Unlikely
level: critical