"Andrew" <(E-Mail Removed)> wrote:
>> On getting to work Monday morning I had a quick look at the usage
>> statistics, and it said I had used 0.09Mbytes. I have not had the
>> computer on at all today, so this is simply impossible. It is now
>> showing 0.10Mbytes so usage is going up despite the fact that I am not at
>> home to use my ADSL account, and my home computer is not even on.
>
>If you router has been connected then yes, its possible to have usage
>while your pc wasnt on. It will either be your router receiving some
>packets, (basically background noise) or stopping any random port
>accesses.
On Clara, I get a Blaster attack roughly every 30 seconds; more often
at night. This is about 120 bytes incoming.
Moreover, the NAT router (while not being breached) used to return
some sort of "ICMP unreachable" packet and this was keeping the ISDN
line open, causing me to go over the 120hr/month limit Clara have on
their flat rate account!! They threatened to cut me off a few times; I
responded that it is dead easy for them to block these very obvious
packets but they don't give a damn; they could so easily email all
their customers (who account for about half the incoming attacks) that
their PC is infected. All the time the ISPs pretend to not look at
traffic, they are in no position to enforce any quotas, IMHO.
With broadband this spurious traffic is moot, but it does show why you
get this problem:
http://uk.news.yahoo.com/040818/36/f0lch.html
Most of my non-expert computer owner friends have their PCs
compromised, often to the point (e.g. acting as full-time spam relays)
where the only way is to use the shop's restore CD...
Peter.
--
Return address is invalid to help stop junk mail.
E-mail replies to
(E-Mail Removed) but remove the X and the Y.
Please do NOT copy usenet posts to email - it is NOT necessary.