I have received this from two sources, my work IT branch, and from my ISP (copy below) , so it's a serious threat. If your PC is not protected by a recognised anti-virus product, an Internet search on "Anti-virus products" will help you find a suitable product. Peter Bute List maintainer -----Original Message----- Date: Thursday, 14 August 2003 14:46 Subject: Microsoft Security Alert "Some __ customers have been impacted by a worm that enters computers to exploit a vulnerability in some Microsoft Windows software. The worm is called W32.Blaster, MSBlast or just Blaster. The worm spreads by scanning the Internet for vulnerable computers. A worm called W32/RPCSdbot, which is spread by e-mail, also exploits the same Microsoft vulnerability. The worm can close down computers with some versions of Microsoft Windows and if this happens, professional assistance may be required to fix infected computers. The best protection that you can have against the Blaster worm is to have up-to-date anti-virus software installed on your computer. If your anti-virus software has not been updated since Monday, it is recommended you update it immediately. " ... "Microsoft advises impacted users email rpc@mss.com.au to get instructions on how to remove the worm. Microsoft further advises users of later versions of Microsoft Windows to download a patch from http://www.microsoft.com/security/security_bulletins/ms03-026.asp to protect against the worm. Panda Software also provides a free application especially designed to detect and eliminate the Blaster worm and repair the damage that it may have caused in affected computers. This utility is available for download at http://www.pandasoftware.com/download/utilities/. "