All news with #llmnr tag
Tue, October 14, 2025
Legacy Windows Protocols Enable Network Credential Theft
🔒 Resecurity warns that legacy Windows name-resolution protocols continue to expose organisations to credential theft when attackers share the same local network. By poisoning LLMNR and NBT-NS broadcasts using tools such as Responder, attackers can capture usernames, domain context and password hashes without exploiting a software vulnerability. Recommended mitigations include disabling these protocols via Group Policy, blocking UDP 5355, enforcing SMB signing, reducing NTLM, and monitoring for anomalous traffic.