title: CrackMapExec Command Execution
id: 058f4380-962d-40a5-afce-50207d36d7e2
status: stable
description: Detect various execution methods of the CrackMapExec pentesting framework
references:
    - https://github.com/byt3bl33d3r/CrackMapExec
tags:
    - attack.execution
    - attack.t1047
    - attack.t1053
    - attack.t1059.003
    - attack.t1059.001
    - attack.s0106
    - attack.t1086      # an old one
author: Thomas Patzke
date: 2020/05/22
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        CommandLine|endswith:
            # cme/protocols/smb/wmiexec.py (generalized execute_remote and execute_fileless)
            - 'cmd.exe /Q /c * 1> \\\\*\\*\\* 2>&1'
            # cme/protocols/smb/atexec.py:109 (fileless output via share)
            - 'cmd.exe /C * > \\\\*\\*\\* 2>&1'
            # cme/protocols/smb/atexec.py:111 (fileless output via share)
            - 'cmd.exe /C * > *\\Temp\\* 2>&1'
        CommandLine|contains:
            # cme/helpers/powershell.py:139 (PowerShell execution with obfuscation)
            - 'powershell.exe -exec bypass -noni -nop -w 1 -C "'
            # cme/helpers/powershell.py:149 (PowerShell execution without obfuscation)
            - 'powershell.exe -noni -nop -w 1 -enc '
    condition: selection
fields:
    - ComputerName
    - User
    - CommandLine
falsepositives:
    - Unknown
level: high