Responder is a LLMNR, NBT-NS and MDNS poisoner, with built-in HTTP/SMB/MSSQL/FTP/LDAP rogue authentication server supporting NTLMv1/NTLMv2/LMv2, Extended Security NTLMSSP and Basic HTTP authentication...
Conveigh is a Windows PowerShell LLMNR/NBNS spoofer detection tool
LLMNR/NBNS/mDNS Spoofing Detection Toolkit
Respounder detects presence of responder in the network.
Understanding and exploiting NTLM and insecure legacy protocols
A simple tool to detect NBT-NS and LLMNR spoofing (and messing with them a bit)