Published by Communications and Public Affairs (519) 824-4120, Ext. 56982 or 53338
September 20, 2001
Nimda Computer Worm Alert
Known as "Nimda" or "readme.exe," the new worm spreads by sending infected e-mail messages, copying itself to computers on the same network, and compromising Web servers using Microsoft's Internet Information Server (IIS) software.
The NIMDA worm is spreading faster than the recent Code Red worm, appears to have at least four distinct propagation mechanisms, and infects hosts running most versions of Windows. It is a vicious worm that can cause extra network activity and has resulted in effective denial of service attacks at many sites.
Please refer to the CCS virus web pages for instructions on what to do to protect yourself from this attack. http://www.uoguelph.ca/ccs/virus/