Dasher-B expoits Windows 2000 PC's.SophosLabs have warned computer users about a new worm which exploits a recently discovered critical security vulnerability in Microsoft's software. The Dasher-B worm exploits a vulnerability in Microsoft Windows See Windows.
(operating system) Microsoft Windows - Microsoft's proprietary window system and user interface software released in 1985 to run on top of MS-DOS. Widely criticised for being too slow (hence "Windoze", "Microsloth Windows") on the machines available then. Distributed Transaction Coordinator The Distributed Transaction Coordinator (MSDTC) service is a component of modern versions of Microsoft Windows that is responsible for coordinating transactions that span multiple resource managers, such as databases, message queues, and file systems. (MSDTC MSDTC Microsoft Distributed Transaction Coordinator ) first announced by Microsoft in October. The worm opens a backdoor See trapdoor. on vulnerable computers and causes them to connect to a remote server for further instructions. Windows 2000 computers which have not been patched are most at risk from the worm.
'The Dasher dash·er
1. One that dashes, especially the plunger of an ice-cream freezer.
2. Sports The ledge along the top of the boards of an ice rink. worm wouldn't be able to spread at all if the security vulnerability in Microsoft's software didn't exist. It's important that all companies have a mechanism for rolling out security patches, as well as for automatically updating their anti-virus software,' Microsoft will be fuming fuming /fum·ing/ (fum´ing) emitting a visible vapor.
Producing or emitting smoke or vapor, as for certain concentrated nitric, sulfuric, and hydrochloric acids. that a virus writer is successfully exploiting another vulnerability in its operating system."
Microsoft has published details of the vulnerability and made patches available on its website at: httpp://www.microsoft.com/technet/security/bullettin/MS05-051.mspx
Sophos noted in October, however, that some users were reported to have experienced difficulties with Microsoft's fix.
The worry is that the problems with the patch may have prevented it from being successfully rolled out onto some vulnerable computers.
Sophos recommends companies protect their email with a consolidated solution to thwart the virus and spam threats and secure their desktops and server with automatically updated anti-virus protection, the latest security patches, and property configured firewalls.