I'd like to learn something

I've just got the following from Sygate F/W
Somebody is scanning your computer.
Your computer's TCP ports:
80, 6129, 3410, and 5000 have been scanned from 82.230.175.143..
So, the question is :

Is there a certain 'profile' that this particular scan describes ?

That is, is it looking for something / anything in particular ?

or do all scans look like this ?

OS = Win XP SP2 + all updates
AV = AVG fully up to date
FW = Sygate

TIA

[edit]
my attempt at a google search