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Threat of Nimda infection on AS400 mail server

We are running a LAN consisting of seven Windows NT servers and our AS400. One of the servers works as our mail server but does not host a Web site, etc. Currently, we have taken down our network and are 'cleaning' our server running as the mail server. Is my AS400 open to infection from the Nimda worm, and how would I proceed to evaluate it's exposure, etc.?

Unless your AS400 is running software which can be infected, it is not likely that there is any threat posed by Nimda. Some companies have had virus issues with infected files getting onto AS400 systems in the PC Folders (i.e., the special areas set up to handle PC formatted files). If you are using this feature (I might have forgotten the exact name), you should scan the files in it using an up-to-date antivirus scanner.

This was last published in October 2001

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