Port 5357 Hacktricks Jun 2026

Send a PROBE request to the multicast address ( 239.255.255.250:3702 ) – but note, port 5357 handles the response unicast. Using a tool like wsdd (Web Services Dynamic Discovery):

While port 5357 itself is not a trivial remote code execution vector, it can contribute to a chain of attacks. port 5357 hacktricks

In networks where NTLM authentication is misconfigured, an attacker could coerce a Windows host to authenticate to a malicious SMB server via a crafted request to port 5357, enabling NTLM relay attacks (similar to PetitPotam but less documented). Send a PROBE request to the multicast address ( 239

nmap -p 5357 --script=http-enum,wsd-discover <target> port 5357 hacktricks