Worm infects 1.1M Windows PCs in 24 hours


	Worm infects 1.1M Windows PCs in 24 hours

Mohir

1-15-2009 10:48 AM

399 views

tags:

computers, virus, windows

Mohir says:

Microsoft recommended that Windows users install the October update, then run the January edition of the MSRT to clean up compromised computers.

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/098d468f-d9d3-422b-b260-d8f0da22ca6d/C7BBB94C-7816-4ECE-9DBC-4D71C9BAEE9B/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.computerworld.com/action/article.do?command=viewArticleBasic&articleId=9125941" href="http://www.computerworld.com/action/article.do?command=viewArticleBasic&articleId=9125941" style="font-size: 11px;">www.computerworld.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.computerworld.com/action/article.do?command=viewArticleBasic&articleId=9125941">The computer worm that exploits a months-old Windows bug has infected more than a million PCs in the past 24 hours, a security company said today.</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.computerworld.com/action/article.do?command=viewArticleBasic&articleId=9125941"><P>
Early Wednesday, Helsinki, Finland-based security firm <A href="http://www.computerworld.com/action/inform.do?command=search&searchTerms=F-Secure+Corporation" title="F-Secure Corporation" linkindex="207">F-Secure Corp.</A> estimated that 3.5 million PCs have been compromised by the "Downadup" worm, an increase of more than 1.1 million since Tuesday.
</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.computerworld.com/action/article.do?command=viewArticleBasic&articleId=9125941"><P>
"[And] we still consider this to be a conservative estimate," said Sean Sullivan, a researcher at F-Secure, in an entry to the <A href="http://www.f-secure.com/weblog/archives/00001580.html" target="new" linkindex="208">company's Security Lab blog</A>. Yesterday, F-Secure said the worm had infected an estimated 2.4 million machines. 
</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.computerworld.com/action/article.do?command=viewArticleBasic&articleId=9125941">The worm, which several security companies have described as <A href="http://www.computerworld.com/action/article.do?command=viewArticleBasic&articleId=9125737" linkindex="209" set="yes">surging dramatically</A> during the past few days, exploits a bug in the <A href="http://www.computerworld.com/action/inform.do?command=search&searchTerms=Microsoft+Windows+Server" title="Microsoft Windows Server" linkindex="210">Windows Server</A> service used by all supported versions of <A href="http://www.computerworld.com/action/inform.do?command=search&searchTerms=Microsoft+Corporation" title="Microsoft Corporation" linkindex="211" set="yes">Microsoft Corp.</A>'s operating system, including <A href="http://www.computerworld.com/action/inform.do?command=search&searchTerms=Microsoft+Windows+2000" title="Microsoft Windows 2000" linkindex="212" set="yes">Windows 2000</A>, XP, Vista, Server 2003 and Server 2008.
</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.computerworld.com/action/article.do?command=viewArticleBasic&articleId=9125941"><P>
<A href="http://www.computerworld.com/action/article.do?command=viewArticleBasic&taxonomyName=spam,_malware_and_vulnerabilities&articleId=9117958" linkindex="213">Microsoft issued an emergency patch</A> in late October, fixing the flaw with one of its rare "out of cycle" updates.
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