Re: Voluminous SSHd scanning; possible worm activity?

From: Glenn Forbes Fleming Larratt (glrattat_private)
Date: Mon Dec 10 2001 - 10:52:17 PST

  • Next message: Aaron Wolfe: "FTP scans from wanadoo.fr"

    We saw, on 9 December between 1327 and 1340 UTC, simultaneous ssh scans from:
    
    #hts	sourceIP
     339 207.218.213.222
     270 64.114.104.12
     234 63.10.45.88
     213 211.233.132.35
     212 216.209.168.65
     190 216.195.10.27
     185 213.189.160.210
     177 64.180.201.203
     171 24.201.41.23
     159 66.168.57.102
     147 202.161.118.230
     144 65.93.74.201
     143 24.201.94.113
     141 24.77.75.155
     138 65.94.8.16
     135 24.250.74.60
     132 64.118.40.136
     130 216.78.37.190
     126 203.218.49.193
     105 147.26.198.185
     100 209.197.185.2
      94 216.78.32.21
    
    . They began and ended very abruptly at the times noted above, and
    came from mostly North America (9 from 4 different Canadian provinces,
    and 9 from 7 different US states), but also from .kr, .be, .au and
    .hk . In every case that I could determine, it appeared to be the
    usual suspects - home broadband networks.
    
    I suspect either a worm or a coordinated zombie attack.
    
    	-g
    
    On Sun, 9 Dec 2001, Jay D. Dyson wrote:
    
    > Hi folks,
    >
    > 	I've been seeing a lot of SSHd scans of late.  That in itself
    > isn't odd, but the sheer volume of the scans is what's got my attention.
    > These sorts of scans used to occur infrequently, but now they're coming
    > within minutes of each other, and they're coming from all over the globe.
    >
    > 	It's not in my nature to speculate wildly, but the sheer volume of
    > these scans, coupled with the variety of their origins (not to mention the
    > timing) leads me to wonder if a worm isn't at play here.
    >
    > 	Has anyone else seen this sort of thing from their systems?
    >
    > - -Jay
    
    -- 
    Glenn Forbes Fleming Larratt         The Lab Ratt (not briggs :-)
    glrattat_private                        http://www.io.com/~glratt
    There are imaginary bugs to chase in heaven.
    
    
    
    ----------------------------------------------------------------------------
    This list is provided by the SecurityFocus ARIS analyzer service.
    For more information on this free incident handling, management 
    and tracking system please see: http://aris.securityfocus.com
    



    This archive was generated by hypermail 2b30 : Sun Dec 16 2001 - 15:56:32 PST