My poor little exchange 5.5 server cleaned 300-400 a day during the initial
Klez and Melissa outbreaks. And that's only for 250 or so users. I can
just imagine what MSU's numbers will be during a heavy outbreak. We
currently are not running a spam filter, but have one budgeted for 2004, and
I'm liking the positive detection rate and false positive rate of the new
mail.msu.edu system so far. Good job guys! - Joe
From: MSU Network Administrators Group [mailto:[log in to unmask]]On
Behalf Of Rich Wiggins
Sent: Wednesday, December 17, 2003 9:07 PM
To: [log in to unmask]
Subject: [MSUNAG] Percent of incoming mail stream infected with viruses
The numbers will probably vary substantially. We know that a lot of
student computers are infected. The students are gone, and presumably
students in residence halls turned their computers off or took them
away over break. A single computer infected with Klez or Sobig could
generate an awful lot of virus mail when plugged into a broadband pipe.
I was surprised to see Sobig.F on the list; I thought that virus had
gone dormant. My guess is some infected computers have their clocks
Spam is a huge percent of e-mail that comes into MSU mailboxes --
maybe 50-60%. I bet the rate of virus e-mails varies a lot more
than the rate of spam e-mails, and spammers have no incentive to
mail a virus.
Bottom line: number of virus e-mails as a percent of total will
vary quite a bit depending on calendar and what outbreaks are new.
>4k out of 300k being infested is more more then I would have guessed.
>From: Ed Symanzik [mailto:[log in to unmask]]
>Sent: Wednesday, December 17, 2003 1:50 PM
>To: [log in to unmask]
>Subject: Re: [MSUNAG] Anti-virus on mail.msu.edu - clarification
>Bosman, Don wrote:
>> Rich, these numbers beg the question of how many mails in total were in
> during that 8 hour period?
>Looks like 300,000 or so.