VIRUS ALERT
August 18, 2003
HIGHPanda Virus Alert - Sobig.F
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Panda Software reports the appearance of Doomjuice.A computer virus
Glendale, CA, February 9, 2004 - While the infections caused by Mydoom.A
are just starting to cool off, a new worm has appeared that exploits the
damage caused by this worm: Doomjuice.A. Evidence suggests that the Mydoom
attack is not going to end on February 12, the date on which it seemed that
the worm would stop spreading. It is supposed that the same author has
launched this new malicious code that cannot even be detected in e-mail, as
it exploits the ports opened by Mydoom.A and Mydoom.B. This new virus
behaves in a similar way to SQLSlammer, i.e., it is a network worm that
exploits an open port in the same way as SQLSlammer exploited server
vulnerability. Panda Software has already issued a fix which is available
on the Panda Software website.
• Virus seems to have been created by the same author as Mydoom
• Virus is designed to spread like a network worm, which makes it
extremely dangerous, as it cannot be detected or viewed by the user
via e-mail, like other viruses.
The actions carried out by Doomjuice.A on the computers it infects include
the following:
- In order to ensure that it is run, it creates the following entry in the
Windows Registry:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run "Gremlin"
intrenat.exe
- It generates a copy of itself in %system% called intrenat.exe (36,864
bytes).
- It creates a file called sync-src-1.00.tbz (28,569) in %Windows%, in
%Temp%, in %System% and in the C: drive. This file is compressed and
contains the source code of Mydoom.A.
- It launches a Denial of Service (DoS) attack against www.microsoft.com.
Evidence suggests that Doomjuice.A was created by the same author as
Mydoom.A. Panda Software’s experts are currently studying this malicious
code. As PandaLabs gathers more information, it will be published on the
company’s website (http://www.pandasoftware.com/).
Due to the appearance of Doomjuice.A, Panda Software advises users to take
extra precautions, and to update their antivirus solutions immediately. The
company has already made the updates to its products available to its
clients to ensure their solutions can detect and eliminate Doomjuice.A.
Those whose software is not configured to update automatically, should
update their solutions from http://www.pandasoftware.com/. Users can also
detect this and other malicious code using the free, online antivirus,
Panda ActiveScan, which is available on the company’s website at
http://www.pandasoftware.com.
More information about Doomjuice.A, Mydoom.A.worm, Mydoom.B.worm and other
malicious code from Panda Software’s Virus Encyclopedia at:
http://www.pandasoftware.com/virus_info/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 maintains the free antivirus utility “ActiveScan” for
computer users and administrators to always have access to the very best
free scan and repair technology. Any computer user wishing to check their
computer for this or other computer viruses should check their computer at
http://www.pandasoftware.com/activescan.
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.
# # #
Members of the media who would like copies of our Antivirus software for
evaluation, on air giveaway or personal use should also feel free to
contact Alan Wallace either by phone or email (contact information below)
FOR MORE INFORMATION:
Alan Wallace
Panda Software
VP, Corporate Communications US
www.pandasecurity.com
Original source: panda-us-virusalert-2003-08-19-sobig.f-eng.doc

