-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Len Conrad
Sent: Monday, November 21, 2005 9:06 AM
To: [email protected]
Subject: Re: [IMail Forum] OT: Increasing Number of Port Scans


>Is anyone else out there seeing a larger then normal increase in the 
>number of port 1025 port scans?  For the last couple of weeks the 
>number of these has been larger and larger and they have been 
>malformed at best.  This weekend I turned of all machines for a 
>2-hour period and ran scans in-house to make sure nothing was 
>provoking the scans, but they just kept a coming.  Is anyone else 
>seeing this?  They have been primarily coming from South America, 
>Asia and the US.

1025 seems to be used in default by a lot of SMTP listeners/proxies 
on legit servers (amavisd, content-scanners, etc) so I bet the 
spammers are hoping to inject spam/compromise there and bypass the 
port 25 defended SMTP listener.

>>That makes sense.  But isn't 1025 also for DCOM?  I thought maybe that's
what >>they were looking for?

block internet-to-port-1025, or even block 
internet-to-all-non-privileged ports by default.

>>By default here.

Len


_____________________________________________________________________
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