Security Incidents mailing list archives

Anyone else seeing a spike in SSHd scans?


From: "Jay D. Dyson" <jdyson () treachery net>
Date: Fri, 27 Jun 2003 12:55:52 -0700 (PDT)

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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.

        What's intrigued me about this is that SSHd scans had been fairly
quiet for a time, then these scans generate more alerts than I've seen in
the past two months on both work and personal systems.  The last time a
similar series of scans occurred (10/2001), I wondered aloud if there
wasn't a new 0day exploit in the wild.  Less than two weeks later, Dave
Dittrich confirmed as much.

        So, to quote a phrase from Jurrasic Park, "Hold on to your butt."

- -Jay

   (    (                                                        _______
   ))   ))   .-"There's always time for a good cup of coffee"-.   >====<--.
 C|~~|C|~~| (>----- Jay D. Dyson -- jdyson () treachery net -----<) |    = |-'
  `--' `--'  `Red meat isn't bad for you, fuzzy green meat is.'  `------'

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