VIRUS ALERT
August 11, 2003
HIGHPanda Virus Alert - W32-Blaster
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FOR IMMEDIATE RELEASE
Panda Software alerts Web users to new worm, W32/Blaster
W32/Blaster was created to exploit the recently discovered vulnerability
in several versions of Microsoft Windows
GLENDALE, CA – August 12, 2003 – Panda Software has started receiving
notice of incidents caused by malicious code W32/BLASTER. Blaster does not
spread through usual means. Instead, it scans the Internet for computers
that are vulnerable to attack. Once one is found, it tries to enter the
system through port 135 to create a buffer overflow. One indication of
infection is unusual activity on this port, which will show up in reports
from the firewall, if one is running.
Once installed in a machine, Blaster scans random IP ranges, seeking more
PCs to infect. It also creates a file in the system called msblast.exe,
which contains the worm's code. It creates a registry key to ensure it is
started whenever the operating system is restarted.
However, the purpose of this malicious code is to infect as many computers
as possible in order to launch a Denial of Service Attack against the Web
site www.windowsupdate.com. The worm is coded to launch that attack on
August 15th, 2003.
This Windows vulnerability, which Microsoft has classified as "critical,"
affects systems with Windows NT, 2000, XP, and Server 2003. This security
hole could allow hackers to gain remote control of infected computers. To
avoid falling victim to an attack, network administrators, IT managers and
home users should immediately install the patches released by Microsoft to
repair this vulnerability. These are available at
http://www.microsoft.com/security/security_bulletins/ms03-026.asp, where
detailed information about this flaw is available.
Panda Software has already released virus signature updates to find and
neutralize W32/Blaster. If your Panda antivirus software is not configured
to update automatically, you can download the update at Panda's Web site:
http://www.pandasoftware.com
Panda software offers the public free use of ActiveScan, an up-to-date
online virus scan to detect malicious code including Blaster. Please access
Panda ActiveScan at:
http://www.pandasoftware.com/activescan/com/activescan_principal.htm
Detailed information about W32/Blaster is already available from Panda
Software’s Virus Encyclopedia.
ABOUT PANDA SOFTWARE
Panda Software (http://www.pandasoftware.com) is the first company to allow
truly automatic daily signature updates, as well as centralized
administration of antivirus protection, both of which have revolutionized
the antivirus industry.
On receiving a possibly infected file, Panda Software's technical staff
immediately analyzes to determine the threat potential. Depending on the
type, the action taken may include: disassembly, macro scanning, code
analysis etc. If the file does in fact contain a new virus, the
disinfection and detection routines are prepared and quickly distributed to
users
Panda Software is known for its user-friendly policies, including free
telephone support for corporate customers, expanded competitive renewal
programs and free disinfection services. All of its products feature
exclusive SmartClean™ technology and are endorsed by major industry
watchdogs including ICSA Labs and Checkmark.
# # #
FOR MORE INFORMATION:
Alan Wallace
Panda Software
VP, Corporate Communications US
www.pandasecurity.com
Original source: panda-us-virusalert-2003-08-12-W32-BLASTER.doc

