Earlier today, when I was just reading a web page on a trusted site, the firewall told me that lsass.exe was attempting a UDP connection via port 500, I blocked it, log below. I was wondering if anyone knew what it was trying to do.
Date/time: 4/16/2009 10:22:44 AM
Source IP: 126.96.36.199 500
Destination IP: xx.xxx.xxx.xx