North American Network Operators Group

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RE: Abusive traffic from Microsoft China?

  • From: Church, Charles
  • Date: Thu Nov 08 12:48:26 2007

Looks fishy.  Why would a company the size of Microsoft register a
single /25?  I doubt MS really owns that block.  Sounds more like a
hacker playground to me. 

Chuck

-----Original Message-----
From: owner-nanog@xxxxxxxxx [mailto:owner-nanog@xxxxxxxxx] On Behalf Of
David Hubbard
Sent: Thursday, November 08, 2007 12:23 PM
To: nanog@xxxxxxxxx
Subject: Abusive traffic from Microsoft China?



Just wondering if anyone else is seeing huge random
floods of traffic from:

inetnum:      202.96.51.128 - 202.96.51.255
netname:      MICROSOFT-CO
descr:        Microsft (China) Co.Ltd
country:      CN
admin-c:      CH455-AP
tech-c:       SY21-AP
mnt-by:       MAINT-CNCGROUP-BJ
changed:      suny@xxxxxxxxxxxxxxxxxx 20060926
status:       ALLOCATED NON-PORTABLE
source:       APNIC
changed:      suny@xxxxxxxxxxxxxxxxxx 20060926

On a nearly daily basis we see them randomly open
thousands of connections from a variety of addresses
in that block to multiple servers.  I've emailed
of coruse but that results in nothing.  Probably
will just end up blocking them.

Thanks,

David