We are detecting in Palo FW that there are sessions from UseriD-Agent servers to publics IPs. Our SOC confirmed that some of these public IPs are categorized like low reputation. Sessions are in port 135. I know the UserId agent uses this port but its reaching publics IPs.
We have GP enabled, and there are also connections port 135 to the public client IPs. But there are anothe sessions to low reputatio ips
Why its having this behaviour? Any way to avoid these sessions from UIA to public IPS?.
Start with disabling NetBIOS in TCP/IP parameters on the UID agents (Control Panel > Network Connections > your connection > Properties > TCP/IPv4 > Advanced > WINS > Disable NetBIOS over TCP/IP). Unless you do use it in your network of course... (but I cannot think of a good reason to do so these days to be honest).
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