Attack code exploiting a recently-patched vulnerability in Microsoft's Windows operating system has been posted to the Internet, prompting concerns of a widespread attack. The software was added to the widely used Metasploit project--a favorite of both security researchers and malicious hackers--at around 1 a.m. Thursday morning Pacific Time, according to H.D. Moore, the Metasploit project leader. "It works very reliably against Windows 2000 and Windows XP systems that do not have SP2 [Service Pack 2] installed," he said in an e-mail.
Security experts had worried that the Windows Server services vulnerability--described in Microsoft Security Bulletin MS06-040--could be used in a widespread worm attack. Windows Server services are generally enabled by default on Windows systems, and are used for common network applications like file sharing and printing.
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News source: PCWorld