I have tried many tools and to do not seem to be successful with locking out an account I am testing on my network with an RDP domain. I used crowbar, ncrack and THC hydra but they don't seem to be working accurately. Can someone point me in the right direction on how to approach this for testing?
If you are having issues with hydra and ncrack, I might suggest trying Patator, but really you want to troubleshoot what is going on.
For a thorough check that also involves an additional layer of testing, try — https://github.com/SySS-Research/Seth