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Command Execution

byt3bl33d3r edited this page Apr 7, 2017 · 9 revisions

Command Execution

Executing commands on a windows system requires Administrator credentials, CME automatically tells you if the credential set you're using has admin access to a host by appending '(Pwn3d!)' to the output when authentication is successful.

See the Credential section for details on how to use credentials.

Execution Methods

CME has three different command execution methods:

  • wmiexec executes commands via WMI
  • atexec executes commands by scheduling a task with windows task scheduler
  • smbexec executes commands by creating and running a service

By default CME will fail over to a different execution method if one fails. It attempts to execute commands in the following order:

  1. wmiexec
  2. atexec
  3. smbexec

If you want to force CME to use only one execution method you can specify which one using the --exec-method flag.

Executing commands

In the following example, we try to execute whoami on the target using the -x flag:

#~ crackmapexec 192.168.10.11 -u Administrator -p 'P@ssw0rd' -x whoami
06-05-2016 14:34:35 CME          192.168.10.11:445 WIN7BOX         [*] Windows 6.1 Build 7601 (name:WIN7BOX) (domain:LAB)
06-05-2016 14:34:35 CME          192.168.10.11:445 WIN7BOX         [+] LAB\Administrator:P@ssw0rd (Pwn3d!)
06-05-2016 14:34:39 CME          192.168.10.11:445 WIN7BOX         [+] Executed command 
06-05-2016 14:34:39 CME          192.168.10.11:445 WIN7BOX         lab\administrator
06-05-2016 14:34:39 [*] KTHXBYE!

You can also directly execute PowerShell commands using the -X flag:

#~ crackmapexec 192.168.10.11 -u Administrator -p 'P@ssw0rd' -X '$PSVersionTable'
06-05-2016 14:36:06 CME          192.168.10.11:445 WIN7BOX         [*] Windows 6.1 Build 7601 (name:WIN7BOX) (domain:LAB)
06-05-2016 14:36:06 CME          192.168.10.11:445 WIN7BOX         [+] LAB\Administrator:P@ssw0rd (Pwn3d!)
06-05-2016 14:36:10 CME          192.168.10.11:445 WIN7BOX         [+] Executed command 
06-05-2016 14:36:10 CME          192.168.10.11:445 WIN7BOX         Name                           Value
06-05-2016 14:36:10 CME          192.168.10.11:445 WIN7BOX         ----                           -----
06-05-2016 14:36:10 CME          192.168.10.11:445 WIN7BOX         CLRVersion                     2.0.50727.5420
06-05-2016 14:36:10 CME          192.168.10.11:445 WIN7BOX         BuildVersion                   6.1.7601.17514
06-05-2016 14:36:10 CME          192.168.10.11:445 WIN7BOX         PSVersion                      2.0
06-05-2016 14:36:10 CME          192.168.10.11:445 WIN7BOX         WSManStackVersion              2.0
06-05-2016 14:36:10 CME          192.168.10.11:445 WIN7BOX         PSCompatibleVersions           {1.0, 2.0}
06-05-2016 14:36:10 CME          192.168.10.11:445 WIN7BOX         SerializationVersion           1.1.0.1
06-05-2016 14:36:10 CME          192.168.10.11:445 WIN7BOX         PSRemotingProtocolVersion      2.1
06-05-2016 14:36:10 [*] KTHXBYE!