RE: Unusual volume: UDP:137 probes

From: Scott, Michael R. (MICHAEL.R.SCOTTat_private)
Date: Tue Oct 01 2002 - 09:37:18 PDT

  • Next message: Scott, Michael R.: "RE: Unusual volume: UDP:137 probes"

    Correction/update to my earlier post:
    It seems to be scanning random chunks of addresses, not /16's, see below for
    a listing of targets probed over a 75 second period.  Notice how it starts
    off with incrementing the host of a /24 then jumps to a different /8 and
    increments only the first octet.  Yesterday night's NAV signatures detect it
    as W32.Opaserv.Worm.  A view of the properties of the file show a C time of
    this past Sat night (9/28 19:32 PST), and an M time of 1/1/70.
    
    181.5.73.183
    181.5.73.184
    181.5.73.185
    181.5.73.186
    181.5.73.187
    181.5.73.188
    181.5.73.189
    181.5.73.190
    181.5.73.191
    181.5.73.192
    181.5.73.193
    181.5.73.194
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    181.5.73.196
    181.5.73.197
    181.5.73.198
    181.5.73.199
    181.5.73.200
    181.5.73.201
    181.5.73.202
    181.5.73.203
    181.5.73.204
    181.5.73.205
    181.5.73.206
    181.5.73.207
    181.5.73.208
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    181.5.73.210
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    181.5.73.253
    181.5.73.254
    181.5.73.255
    215.27.171.66
    216.27.171.66
    217.27.171.66
    218.27.171.66
    219.27.171.66
    220.27.171.66
    221.27.171.66
    222.27.171.66
    223.27.171.66
    224.27.171.66
    225.27.171.66
    226.27.171.66
    227.27.171.66
    228.27.171.66
    229.27.171.66
    230.27.171.66
    231.27.171.66
    232.27.171.66
    233.27.171.66
    234.27.171.66
    235.27.171.66
    236.27.171.66
    237.27.171.66
    238.27.171.66
    239.27.171.66
    240.27.171.66
    241.27.171.66
    242.27.171.66
    243.27.171.66
    244.27.171.66
    245.27.171.66
    246.27.171.66
    247.27.171.66
    248.27.171.66
    249.27.171.66
    250.27.171.66
    251.27.171.66
    252.27.171.66
    253.27.171.66
    254.27.171.66
    66.171.27.255
    162.163.234.229
    162.163.234.230
    162.163.234.231
    162.163.234.232
    162.163.234.233
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    162.163.234.235
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    162.163.234.243
    162.163.234.244
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    162.163.234.247
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    162.163.234.249
    162.163.234.250
    162.163.234.251
    162.163.234.252
    162.163.234.253
    162.163.234.254
    162.163.234.255
    173.11.177.110
    173.11.177.111
    173.11.177.112
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    149.248.50.154
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    Mike 
    
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    This archive was generated by hypermail 2b30 : Tue Oct 01 2002 - 12:20:55 PDT