McAfee AVERT Receives Unprecedented Submissions of Virus Variants, Led Today by W32/Netsky.d@MM, from Customers Around the World
BEAVERTON, Ore., March 1 /PRNewswire-FirstCall/ -- Network Associates, Inc. (NYSE: NET) the leading provider of intrusion prevention solutions, today announced that McAfee® AVERT™ (Anti-Virus and Vulnerability Emergency Response Team), the world-class anti-virus and vulnerability research division of Network Associates®, raised the risk assessment to medium on the recently discovered W32/Netsky.d@MM, also known as Netsky.d. Netsky.d is a prolific worm that spreads via email, sending itself to addresses found on the victim's machine. The worm has many of the same functionalities as its Netsky predecessors, two of which are also currently rated a medium risk threat. McAfee AVERT researchers first saw the worm earlier today and to date, have received approximately 200 samples of Netsky.d from both real customer submissions and virus-generated mail from customers around the world. Most of the Netsky.d samples that McAfee AVERT has seen are from the virus itself, which is spoofing the addresses, and not from the infected customers. This is the case with most viruses at this point, the three most prevalent families being Mydoom, Bagle, and Netsky.
Symptoms
Netsky.d is an Internet worm that once activated emails itself to addresses found on the victim's machine. The worm then attempts to copy itself to folders on drives C: through Z: and attempts to deactivate the W32/Mydoom.a@MM and W32/Mydoom.b@MM viruses. The worm causes unexpected network traffic and an audio payload, similar to the W32/Netsky.c@MM variant, and causes the machine to make random beeping sounds with varying pitches and rhythm upon a specific date and time. Users should immediately delete any email containing the following:
From: (forged address taken from infected system)
Subject: Taken from the following list:
Re: Hello
Re: Hi
Re: Thanks!
Re: Document
Re: Message
Re: Here
Re: Details
Re: Your details
Re: Approved
Re: Your document
Re: Your text
Re: Excel file
Re: Word file
Re: My details
Re: Your music
Re: Your bill
Re: Your letter
Re: Document
Re: Your website
Re: Your product
Re: Your document
Re: Your software
Re: Your archive
Re: Your picture
Re: Here is the document
Body: Taken from the following list:
Here is the file.
Your file is attached.
Your document is attached.
Please read the attached file.
Please have a look at the attached file.
See the attached file for details.
Pathology
After being executed, Netsky.d emails itself out as a .PIF attachment with a filename taken from strings within the worm. It queries the DNS server for the MX record and connects directly to the Mail Transfer Agent (MTA) of the targeted domain and sends the message. The worm then copies itself the WINDOWS directory with the filename "WINLOGON.EXE." The worm adds the key, "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run"ICQ Net" = %WinDir%\WINLOGON.EXE -stealth" to the registry, which helps it activate at the system start-up.
Cure
Immediate information and the cure for this virus can be found online at the Network Associates McAfee AVERT site located at
http://vil.nai.com/vil/content/v_101064.htm . Users of McAfee Security products should update their systems from that page. Generic protection, which also protects users against the W32/Netsky.c@MM variant, has been available with the 4328 or later scanning engine to stop potential damage.
Network Associates McAfee® Protection-in-Depth™ Strategy delivers the industry's only complete set of system and network protection solutions differentiated by intrusion prevention technology that can detect and block these types of attacks. This allows customers to protect themselves while they plan their patch deployment strategy.
McAfee AVERT Labs is one of the top-ranked anti-virus research organizations in the world, employing more than 90 researchers in offices on five continents. McAfee AVERT protects customers by providing cures that are developed through the combined efforts of McAfee AVERT researchers and McAfee AVERT AutoImmune technology, which applies advanced heuristics, generic detection, and ActiveDAT technology to generate cures for previously undiscovered viruses.
About Network Associates
With headquarters in Santa Clara, California, Network Associates, Inc. (NYSE: NET) creates best-of-breed computer security solutions that prevent intrusions on networks and protect computer systems from the next generation of blended attacks and threats. Offering two families of products, McAfee System Protection Solutions, securing desktops and servers, and McAfee Network Protection Solutions, ensuring the protection and performance of the corporate network, Network Associates offers computer security to large enterprises, governments, small and medium sized businesses, and consumers.
For more information, Network Associates can be reached at 972-963-8000 or on the Internet at
http://www.networkassociates.com/ .
NOTE: Network Associates, McAfee and AVERT are either registered trademarks or trademarks of Network Associates, Inc. and/or its affiliates in the United States and/or other countries. All other registered and unregistered trademarks herein are the sole property of their respective owners.
SOURCE Network Associates, Inc.