The main features of m8r0wn/nullinux are: Service Brute Forcing.
Open-source alternatives to m8r0wn/nullinux include: busescanfly/pretty. coalfire-research/deathmetal. comaeio/opcde. dafthack/rdpspray. darkcodersc/win-brute-logon — Crack any Microsoft Windows users password without any privilege (Guest account included). 1n3/brutex.