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I used nmapfe to scan a machine on my lan and the results have made me a tad bit concerned. Its a windows xp home box and it is showing that port 139 and 135 are both open. I do have file and printer sharing turned off and thought that those should have not shown up. Does anyone know if that is something that I should be worried about? The scan only worked when coming across my lan, the natted firewall stopped it from outside the lan, whew.
EDIT: spell check would be a good thing.
Enable Windows firewall and nothing will show up in nmap. But if you're
inside a natted firewall, no need to worry unless it's unsecured or vulnerable
wireless router. Or if you've got some untrusted users on your side of
the NAT.
The windows firewall is enabled. I didn't see anything in the exception list that would open those ports. The machine comes up clean with Asquared and with hyjackthis. I believe I would rather be paranoid and just wipe the drive and start over though. The machine has been running online for over a year and a half. I'm making backups as I type.
FNR'ing (flatten and reload) an hdd every year or two is not bad idea, in the whole scheme of things.