Security Incidents mailing list archives

Re: Anyone else seeing a spike in SSHd scans?


From: p00p () instable net
Date: Sun, 29 Jun 2003 12:12:19 -0400

one thing that could be of interesting note is that comcast IS now attbi.com, after a merger a few months ago. new 
customers are put on comcast ips, but remaining customers from before the merger still have attbi.com addresses
so basically all your scans are from the same isp. are all your scans from the same geographical areas?

On Sat, Jun 28, 2003 at 03:05:51PM -0700, Dave Laird wrote:
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Good afternoon, Jay, everyone...

On Friday 27 June 2003 12:55 pm, Jay D. Dyson wrote:
Hi folks,

    I've seen an unusual spike in SSHd scans in the past 20 hours on
systems I maintain for my employer and those I run on my own time.  The
largest spike began yesterday between 12:16 and 18:16 hours (PDT) and the
others have begun trickling in on my non-work networks since around 08:00
hours today.

    It's all the usual suspects, of course: systems from Malaysia, the
Netherlands, a DSL provider in Norway, and a Cable service in Taiwan.

Since I block some/most of those locations in my firewall, I was a bit
surprised when I noted a spike in SSH scans yesterday, between 14:22 and
18:05 PDT. Then they started up again this afternoon, from what appears to
be both attbi.com and comcast DSL IP's. Hmmm. Maybe your're right. 

Dave
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