Conficker Worm Spreads To 3.5 Million Computers
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Helsinki, Finland (AHN) - A new variant of a worm that attacks Windows operating system has infected more than 3.5 million computers worldwide since October, according to anti-virus companies.
Helsinki-based F-Secure said the Conficker worm even infected one million PCs in just one day as the virus spreads through USB devices and Windows-run PCs that lack the patch MS08-067 issued by Microsoft in November.
Microsoft said most of the infected computers are in China, Brazil, Russia, and India.
The Conficker allows hackers to download files from a website. The worm enters the Windows system through the service.exe file and changes the Registry setting to activate itself. Once running, the worm generates hundreds of different domain names every day and one of these will be used by the hacker to download files from. Because of the high number of websites, it is hard to detect the hacker's website and stop the intrusion.
Microsoft said the MS08-067 patch can remove the Conficker and clean infected PCs. For PCs without a patch yet, Todd Hooper, CEO of network security vendor Napera Networks, advised isolating infected machines to prevent its spread on corporate networks.
Helsinki-based F-Secure said the Conficker worm even infected one million PCs in just one day as the virus spreads through USB devices and Windows-run PCs that lack the patch MS08-067 issued by Microsoft in November.
Microsoft said most of the infected computers are in China, Brazil, Russia, and India.
The Conficker allows hackers to download files from a website. The worm enters the Windows system through the service.exe file and changes the Registry setting to activate itself. Once running, the worm generates hundreds of different domain names every day and one of these will be used by the hacker to download files from. Because of the high number of websites, it is hard to detect the hacker's website and stop the intrusion.
Microsoft said the MS08-067 patch can remove the Conficker and clean infected PCs. For PCs without a patch yet, Todd Hooper, CEO of network security vendor Napera Networks, advised isolating infected machines to prevent its spread on corporate networks.
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