September 27, 2002
VirusScan Hotfix for Windows 98

MacAfee has released a hotfix for VirusScan for Windows 98 systems. If you're using VirusScan on a Windows 98 (or Windows 95) system, you should apply this hotfix immediately.

A Windows 98 machine with an up-to-date version of VirusScan (without the hotfix) may produce any or all of the following symptoms:

--Blue Screens
--Excessive machine slowdown
--Clock time loss
--Jerky mouse cursor movements
--'Stuttering' sound cards

The hotfix, 4160 Engine Hotfix 1 to VirusScan, is available through Scout. To access, go to Start-->Programs-->Scout

The button labeled "VirusScan 4160 Hotfix 1" will only show up if you run Scout from a Windows 98 machine, not a Windows 2000 machine. When you run Scout, do not insert the Scout CD you received in June, 2002 as the Hotfix is not a part of that CD. It can currently only be accessed via network connection.

If you have questions about applying this hotfix, you can contact the Extension Support line at 515/294-1725.

Posted by dcoates at 02:16 PM
September 26, 2002
Controlling Spam

Spam is junk e-mail that you don't want, didn't ask for and can't get rid of. Current estimates are that spam constitutes over one-third of the email that passes through the Internet every day.

On October 1st, a new spam detection system will be implemented at ISU for email sent to an 'iastate.edu' address. This includes all mail received by Extension staff.

Currently ISU Extension staff receive very little spam. However, spam is a growing issue and a spam detection system can help you control your email so that important messages aren't missed.

Spam detection is more art than science. It works by comparing the header and contents of an incoming email message to a set of rules to detect messages that might be spam. In addition, it ranks messages by the number of matches it gets. The more rules matched in an email message, the higher the probability the message is spam. If an email message contains enough characteristics to be flagged the message subject is modified so that it includes:

[SPAM? #]

The number of ## characters indicates how many of the 'rules' apply to that particular message. If [SPAM? #####] appears in the header then it is extremely likely that the message is spam. If [SPAM? #] appears in a header, it's still likely that it's spam, but you may want to check the message to be sure.

If a message sent to you does not have [SPAM? #] in the header, this means that it didn't trigger enough spam 'rules' to be flagged.

More information about how spam detection is being implemented at ISU can be found at:

Spam Detection Being Implemented

on the AIT (Academic Information Technologies) website.

Posted by dcoates at 09:24 AM
September 17, 2002
Don't Delete that File!

Have you recently received an email message that started something like this:

I was just sent a message from someone who had our e-mail address in their address book. They had gotten a virus which is undectable by Norton and McAfee Anti-Virus programs and lies dormant for 14 days before damaging the system. Since this virus is transmitted automatically by messenger, then my adress book was also infected and so, probably, is yours, whether or not you send e-mails. The virus is called jdbgmgr.exe.

The message continues, telling you to look for this file, jdbgmgr.exe and delete it.

If you get this message, DO NOT delete that file. This is a hoax message, not a real virus. For more information, check:

http://vil.nai.com/vil/content/v_99436.htm
http://www.datafellows.com/hoaxes/jdbgmgr.shtml
http://securityresponse.symantec.com/avcenter/venc/data/jdbgmgr.exe.file.hoax.html

More information on Virus Hoaxes in general can be found at:

http://www.extension.iastate.edu/mt/technews/archives/000212.html

If you already deleted the file: This is not a critical system file. Your computer will likely continue to operate normally. Some Java applets found on some web pages may not function correctly, but they will not cause damage. If you experience problems which you suspect might be caused by having deleted this file, please contact the Extension IT Support Hotline (515-294-1725).

Posted by dcoates at 08:46 AM
September 05, 2002
Losing Time?

If your computer's clock suddenly starts losing time steadily, try the following:

*Uninstall and reinstall VirusScan*

Note: If you're running Windows 2000, you will need to log in as Administrator on your computer before you do the steps below.

To uninstall VirusScan:
--Go to Start-->Settings-->Add/Remove Programs
--In the Add/Remove Programs window, select 'MacAfee VirusScan'
--Choose the option to remove the program

Once VirusScan has been uninstalled, you can reinstall it from the Scout CD you received in the June 14, 2002 transmittal packet.

To reinstall:
--Put the Scout CD in your CD drive
--From the Start menu, select Programs-->Scout
--In the Scout Program, select the options for installing VirusScan

Once VirusScan is reinstalled be sure to go into the VirusScan scheduler (double-click on the magnifying glass icon in the bottom right-hand corner of your screen) and set VirusScan to update and scan regularly.

Detailed instructions for installing and configuring VirusScan can be found at on the ISU Extension web site under, Installing and Configuring VirusScan

Posted by dcoates at 09:51 AM