October 2013 - Stern Security

Local Network Attacks: LLMNR and NBT-NS Poisoning

How can an attacker capture usernames and passwords on a local network by simply waiting for the computers to willingly give them up?  LLMNR and NBT-NS poisoning!

Link-Local Multicast Name Resolution (LLMNR) and Netbios Name Service (NBT-NS) are two components of Microsoft Windows machines.  LLLMNR was introduced in Windows Vista and is the successor to NBT-NS.

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