[cobalt-users] constant "scans"

[Kameel <kameel@xxxxxxxxxxxxxxx>]

Heya Folks,

Port sentry keeps reporting the following scans:

	Mar 20 07:41:55 www portsentry[20348]: attackalert: TCP SYN/Normal scan 
from host: 61.43.142.241/61.43.142.241 to TCP port: 445

There have been alot of reports over the last week or so. All from varying 
IP's and all to port 445.
Is this a default windows update port or something ? Or is this an actual 
threat ?

Any help would be appreciated,
Thanks,
Kam.