Re: TCP Scan by Google machine?
Date: 7 Jan 2005 13:26:39 -0700
"Documatrix" <firstname.lastname@example.org> writes:
> I've been playing around with OnlineEye Pro today and its Network
> Traffic Monitor has been logging attempts by a Google machine (verified
> by WhoIs) to access TCP ports on my home Windows XP laptop. (It's up to
> the 4100's now.)
What are the source ports on Google's side? If the connections
have a source port of 80 then the "attempts" might simply be packets
that belong to old HTTP connections you made to Google. Does the
monitor log TCP flags like SYN, ACK, FIN, RST, etc.? If so, what
Another possibility is that somebody's running a port scan by
exploiting a Google service that proxies connections. Hopefully
Google has taken steps to prevent such abuse, but somebody might
have found a way. Their translation service, for example, appears
to allow only certain ports in the URLs it accepts.
> Why would a Google machine do this? I'm running Google Desktop Search
> and the Google Toolbar, but this hardly seems provocative.
I don't know how these work so I don't know if they could be
responsible. If the "attempts" your monitor logs are just packets
that are part of an old connection, then I suppose these services
could have initiated those connections.
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