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The Apache web server provides a feature called .htaccess, which provides commands to control a web site. This file is very obscure and extremely useful when used properly. You have to be careful when editing .htaccess files, as a small mistake can make your web site stop working. What I like to do is immediately test site to be sure it works.
Be sure not to make mistake that I made once - I browsed to my site, saw that home page came up, and went to work. Later, I found it was not working but appeared to work because home page was stored in my browser cache. Thus I learned a simple lesson hard way: always hit refresh key of browser when testing .htaccess changes.
I did a little research and testing, and added following lines to my .htaccess file.
redirect /scripts http://www.stoptheviruscold.invalid redirect /MSADC http://www.stoptheviruscold.invalid redirect /c http://www.stoptheviruscold.invalid redirect /d http://www.stoptheviruscold.invalid redirect /_mem_bin http://stoptheviruscold.invalid redirect /msadc http://stoptheviruscold.invalid RedirectMatch (.*)cmd.exe$ http://stoptheviruscold.invalid$1
These lines did exactly what I wanted them to do - they stopped virus from creating 404 errors in my log file, and they prevented my 404 error page from being triggered, thus creating lots of useless bandwidth utilization. There is still some bandwidth used, obviously, but it is far less than it would have been. The load on server is also considerably reduced, which should make my web hosting company happy.
Note that log file entries are still made by various worms as they attempt to penetrate server. These entries do now show as errors, which makes it easier to pick out real errors from logs.
Richard Lowe Jr. is the webmaster of Internet Tips And Secrets at http://www.internet-tips.net - Visit our website any time to read over 1,000 complete FREE articles about how to improve your internet profits, enjoyment and knowledge.