Dear SBC Internet Services Subscriber:
It is extremely important
that you read this message and take immediate action.
Failure to act may require us to temporarily suspend your service.
As part of our ongoing commitment to keep customers informed
about Internet safety, SBC Internet Services last week
sent a message strongly urging our Members running Microsoft
Windows NT, 2000 or XP to take appropriate security measures
to help protect their computers from an Internet worm called
Blaster.
Unfortunately, we have reason to believe that your computer
has been infected with a variant of the Blaster worm (also
known as Blaster.D and Welchia) and that it is continuing
to infect other computers. Because of the nature of this
particular worm, you may not notice any effects right away.
However, the worm on your system could have significant
impact on others. It is necessary for us to request your
immediate action in order to help protect all SBC Internet
Services customers.
To maintain service, you must take a few minutes now and
follow the removal instructions at: http://www.microsoft.com/security/incident/blast.asp.
Once you have done that, please go http://windowsupdate.microsoft.com to
download and install all available critical patches for
your operating system. You must perform these actions on
all computers that connect using SBC Internet Services.
Once you have completed download of all critical patches,
reboot your pc and log off and back onto the Internet to
validate your service.
If you have questions about this email or need other information,
please contact SBC Internet Services toll free at 877-SBC-DSL5.
Thank you for your prompt action on this important matter.
Sincerely,
SBC Internet Services
SBC does not access the contents
of customers' computers. SBC uses traffic statistics
to detect high traffic levels which may indicate
an infected computer.
Technical Details: SBC Internet
Services believes a computer using your IP address
may be infected
because of a high level of network traffic
on TCP Port 135 originating from your network IP
address.
If your router uses Network Address Translation
(NAT) or you use Microsoft's Internet Connection
Sharing (ICS) to connect to the Internet, one
or more computers on your network may share the same
IP address. Computers with IP addresses beginning
with 10.x.x.x, 172.16.x.x.x through 172.31.x.x
and 192.168.x.x use Network Address Translation
(NAT). If multiple computers on your network
share
the same IP address, you must check all your
computers for infection. SBC can not determine which
particular
computer on a NAT network is infected. You
may continue to receive this message until all the
computers on your network have been repaired. |
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