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Zombie / Botnet?
From: Tony Raboza <tonyraboza () gmail com>
Date: Tue, 10 Nov 2009 20:05:20 +0800

Hi,

One of our workstations is broadcasting a huge amount of UDP traffic
(around 5Mbps) and I'm thinking it could be a zombied computer doing
DDOS as directed by its controller.  But the weird thing is - it has
an updated McAfee AV with HIPS ??  Why was this not detected - or
could I be reading this wrong?  Here's a portion of the tcpdump:

14:00:20.509030 IP 192.168.10.10.smpppd > i.root-servers.net.hpstgmgr:
UDP, length 1000
14:00:20.519512 IP 192.168.10.10.iiw-port > 77.91.227.67.4744: UDP, length 1000
14:00:20.520580 IP 192.168.10.10.odi-port > a.root-servers.net.4496:
UDP, length 1000
14:00:20.521733 IP 192.168.10.10.brcm-comm-port >
b.root-servers.net.4710: UDP, length 1000
14:00:20.523076 IP 192.168.10.10.pcle-infex > c.root-servers.net.826:
UDP, length 1000
14:00:20.524186 IP 192.168.10.10.csvr-proxy > d.root-servers.net.3997:
UDP, length 1000
14:00:20.525251 IP 192.168.10.10.csvr-sslproxy >
E.ROOT-SERVERS.NET.funk-license: UDP, length 1000
14:00:20.526385 IP 192.168.10.10.firemonrcc >
f.root-servers.net.sonuscallsig: UDP, length 1000
14:00:20.527798 IP 192.168.10.10.spandataport >
G.ROOT-SERVERS.NET.4130: UDP, length 1000
14:00:20.528794 IP 192.168.10.10.magbind > h.root-servers.net.atmtcp:
UDP, length 1000
14:00:20.529947 IP 192.168.10.10.ncu-1 >
i.root-servers.net.direcpc-dll: UDP, length 1000
14:00:20.537027 IP 192.168.10.10.ncu-2 > 77.91.227.67.audit-transfer:
UDP, length 1000
14:00:20.538422 IP 192.168.10.10.embrace-dp-s >
77.91.227.67.bluelance: UDP, length 1000
14:00:20.538712 IP 192.168.10.10.embrace-dp-c >
a.root-servers.net.embrace-dp-s: UDP, length 1000
14:00:20.540010 IP 192.168.10.10.dmod-workspace >
b.root-servers.net.bvcontrol: UDP, length 1000
14:00:20.540208 IP 192.168.10.10.tick-port > a.root-servers.net.925:
UDP, length 1000
14:00:20.541412 IP 192.168.10.10.cpq-tasksmart >
b.root-servers.net.bnt-manager: UDP, length 1000
14:00:20.541756 IP 192.168.10.10.intraintra > c.root-servers.net.864:
UDP, length 1000
14:00:20.542941 IP 192.168.10.10.netwatcher-mon >
c.root-servers.net.sbi-agent: UDP, length 1000
14:00:20.544113 IP 192.168.10.10.netwatcher-db >
d.root-servers.net.4467: UDP, length 1000
14:00:20.544400 IP 192.168.10.10.isns > d.root-servers.net.4245: UDP,
length 1000
14:00:20.545444 IP 192.168.10.10.ironmail > E.ROOT-SERVERS.NET.2374:
UDP, length 1000


==

Its sending UDP traffic to the root nameservers ....

Any ideas?
Thanks.


Best,
Tony

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