Networks experience disruption with an old virus reappearing as a mass-mailing machine and an MSBlast variant traveling far and wide to patch the original vulnerability.
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Twenty servers that the computer virus had scheduled to download attack software were shut down, avoiding a potential wave of new e-mail.
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Just when you thought it was safe to go back on the Internet, anti-virus experts are warning that PCs infected by the SoBig.F worm may on Friday become part of an as-yet unknown attack.
Experts at both Sophos Inc. and F-Secure Corp. say that the worm is programmed to automatically connect to one of several machines controlled by the worm's creator. Once the connection is established, the worm will download and execute an unknown piece of code. It's not known what the program is designed to do, but experts fear it may involve a massive distributed denial-of-service (DoS) attack or something similar.
The downloads are set to commence at 3 p.m. EDT Friday and end three hours later.
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Experts at both Sophos Inc. and F-Secure Corp. say that the worm is programmed to automatically connect to one of several machines controlled by the worm's creator. Once the connection is established, the worm will download and execute an unknown piece of code. It's not known what the program is designed to do, but experts fear it may involve a massive distributed denial-of-service (DoS) attack or something similar.
The downloads are set to commence at 3 p.m. EDT Friday and end three hours later.
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The latest rumor circulating on Bugtraq: Blaster caused last week's east coast blackout. Some are speculating that Blaster brought down the monitoring and control systems at a power-plant master terminal. Meanwhile, on the SoBig front, Gartner analysts are estimating that damages incurred by businesses from the e-mail worm could top $50 million.
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MooSoft has released another trojan definitions update for The Cleaner
Networks experience disruption as an old virus reappears as a mass-mailing machine and an MSBlast variant that patches the original vulnerability spread.
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A widespread and dangerous Microsoft Corp. Windows vulnerability, spam e-mail messages and human frailty combined in recent weeks to produce a flood of new Internet worm attacks, according to experts at leading antivirus and e-mail security companies.
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The latest of version of the Sobig Internet virus, Sobig.F, is spreading faster than any virus seen before, according to U.K. e-mail security firm MessageLabs Ltd.
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Virus definition, or .DAT, files contain up-to-date virus signatures and other information that Network Associates anti-virus products use to protect your computer against the thousands of computer viruses in circulation. Network Associates releases new .DAT files regularly to provide protection against the approximately 300 new viruses that appear each month. To ensure that your anti-virus software can protect your system or network against the latest virus threats, download and install the latest .DAT files. [Update 2.23 MB]
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Virus definition, or .DAT, files contain up-to-date virus signatures and other information that Network Associates anti-virus products use to protect your computer against the thousands of computer viruses in circulation. Network Associates releases new .DAT files regularly to provide protection against the approximately 300 new viruses that appear each month. To ensure that your anti-virus software can protect your system or network against the latest virus threats, download and install the latest .DAT files. [Update 5.33 MB]
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This is the latest virus pattern to detect the latest viruses. This update will work on the following products: NAV 2000 for Win9x/NT/2000,
NAV 2001 for Win95b/98/NT/2000/Me,
NAV 2002 Professional Edition,
NAV 2002 for Win98/Me/NT/2000/XP Home/XP Pro,
NAV 4.0 for Windows 3.51,
NAV 5.0 and 2000 for Win9x,
NAV 5.0 and 2000 for WinNT,
NAV for Firewalls 1.5 or higher,
NAV for Lotus Notes (Intel),
NAV for MS Exchange (Intel),
Norton SystemWorks (all versions),
Norton Utilities for Windows 95/98 (all versions),
pcAnywhere32 7.5 and higher for WinNT. [Update 3.99 MB]
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NAV 2001 for Win95b/98/NT/2000/Me,
NAV 2002 Professional Edition,
NAV 2002 for Win98/Me/NT/2000/XP Home/XP Pro,
NAV 4.0 for Windows 3.51,
NAV 5.0 and 2000 for Win9x,
NAV 5.0 and 2000 for WinNT,
NAV for Firewalls 1.5 or higher,
NAV for Lotus Notes (Intel),
NAV for MS Exchange (Intel),
Norton SystemWorks (all versions),
Norton Utilities for Windows 95/98 (all versions),
pcAnywhere32 7.5 and higher for WinNT. [Update 3.99 MB]
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Microsoft has released two new patches:
Cumulative Patch for Internet Explorer
This is a cumulative patch that includes the functionality of all previously released patches for Internet Explorer 5.01, 5.5 and 6.0. In addition, it eliminates newly discovered vulnerabilities.
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Unchecked Buffer in MDAC Function Could Enable System Compromise
Microsoft Data Access Components (MDAC) is a collection of components that are used to provide database connectivity on Windows platforms. MDAC is a ubiquitous technology, and it is likely to be present on most Windows systems.
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Cumulative Patch for Internet Explorer
This is a cumulative patch that includes the functionality of all previously released patches for Internet Explorer 5.01, 5.5 and 6.0. In addition, it eliminates newly discovered vulnerabilities.
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Unchecked Buffer in MDAC Function Could Enable System Compromise
Microsoft Data Access Components (MDAC) is a collection of components that are used to provide database connectivity on Windows platforms. MDAC is a ubiquitous technology, and it is likely to be present on most Windows systems.
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Microsoft has updated the following security bulletins:
Unchecked Buffer in DirectX Could Enable System Compromise
Subsequent to the original release of this bulletin, customers requested that we support additional versions of DirectX that were not covered by the original patches. This bulletin has been updated to provide information about this new patch.
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Unchecked Buffer in MDAC Function Could Enable System (Q326573)
Subsequent to the release of this bulletin, it was determined that the vulnerability addressed is not with the OpenRowSet command (which is a Microsoft SQL Server command) but rather that the vulnerability is with the underlying MDAC component Open Database Connectivity (ODBC), which is present in all versions of Windows. Additionally, the original patch released with this did not install correctly on some systems because of a flaw in the way that Microsoft Windows Installer updated the System File Protection cache. The bulletin has been updated to include this additional information and to direct users to an updated patch.
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Unchecked Buffer in DirectX Could Enable System Compromise
Subsequent to the original release of this bulletin, customers requested that we support additional versions of DirectX that were not covered by the original patches. This bulletin has been updated to provide information about this new patch.
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Unchecked Buffer in MDAC Function Could Enable System (Q326573)
Subsequent to the release of this bulletin, it was determined that the vulnerability addressed is not with the OpenRowSet command (which is a Microsoft SQL Server command) but rather that the vulnerability is with the underlying MDAC component Open Database Connectivity (ODBC), which is present in all versions of Windows. Additionally, the original patch released with this did not install correctly on some systems because of a flaw in the way that Microsoft Windows Installer updated the System File Protection cache. The bulletin has been updated to include this additional information and to direct users to an updated patch.
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Welcome to the summer of the worm. Hard on the heels of the Blaster worm outbreak , yet another version of the resilient and ever-popular SoBig virus began spreading rapidly on the Internet Tuesday morning. Known as SoBig.F, the new variant behaves much like its older siblings, infecting Windows machines via e-mail and sending out dozens of copies of itself.
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MooSoft has released another trojan definitions update for The Cleaner
Has your browser been hijacked by CoolWebSearch spyware? If you've ever been redirected to coolwebsearch.com unexpectedly, you may be infected.
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Virus definition, or .DAT, files contain up-to-date virus signatures and other information that Network Associates anti-virus products use to protect your computer against the thousands of computer viruses in circulation. Network Associates releases new .DAT files regularly to provide protection against the approximately 300 new viruses that appear each month. To ensure that your anti-virus software can protect your system or network against the latest virus threats, download and install the latest .DAT files. [Update 2.22 MB]
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Virus definition, or .DAT, files contain up-to-date virus signatures and other information that Network Associates anti-virus products use to protect your computer against the thousands of computer viruses in circulation. Network Associates releases new .DAT files regularly to provide protection against the approximately 300 new viruses that appear each month. To ensure that your anti-virus software can protect your system or network against the latest virus threats, download and install the latest .DAT files. [Update 5.31 MB]
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Antivirus companies warned Tuesday that a new version of the Sobig virus is rapidly spreading on the Internet, the latest in a string of Sobig computer worms to be released.
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Removal tool to check for and clean W32.Blaster.Worm infections.
[License: Freeware| Requires: Win NT/2K/XP | Size: 140 Kb]
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[License: Freeware| Requires: Win NT/2K/XP | Size: 140 Kb]
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