W32.Downadup.B

Discovered : December 30, 2008
Updated : December 31, 2008 9:58:37 AM
Also Known As : Worm:W32/Downadup.AL [F-Secure], Win32/Conficker.B [Computer Associates], W32/Confick-D [Sophos], WORM_DOWNAD.AD [Trend], Net-Worm.Win32.Kido.ih [Kaspersky]

Type : Worm
Systems Affected : Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows Vista, Windows XP
CVE References : CVE-2008-4250

W32.Downadup.B is a worm that spreads by exploiting the Microsoft Windows Server Service RPC Handling Remote Code Execution Vulnerability (BID 31874). It also attempts to spread to network shares protected by weak passwords and blocks access to security-related Web sites.

- source : www.symantec.com