|Department of Planetary Sciences |
Lunar and Planetary Laboratory
LPL Central Computing Systems (LCS)
How do I get and install or update Sophos Anti-Virus software on my PC?
Click here to download Sophos and to learn how to install and configure it.
The Sophos download will install Sophos Anti-Virus, update it, and then continue to update it automatically.
Be sure to click into and read the Quickstart Install Guide under News and information on the Sophos download page.
Please contact the LPL Systems Staff if you would like help with this.
After installing Sophos, perform a full system scan. After that, you must setup a scheduled daily scan to keep system clean. Administrator privileges are required to set up a Scheduled Scan.
Norton Anti-virus and McAfee Anti-virus users: please ignore this unless you wish to uninstall Norton or McAfee and switch to Sophos.
How do I configure Sophos Anti-Virus software on my Windows PC?
Click here for detailed instructions (the Sophos User Manual). Click here for quickstart instructions.
Where can I get the latest information on viruses, worms, and hoaxes?
For the latest information feed on viruses, worms, and hoaxes, please visit
LPL's virus info web page.
How can I determine whether an email I've received contains a virus/worm?
If you receive an email that has a random, strange, or blank subject line and has one or more attachments, it may very well contain a virus or worm, and should be handled with caution. Do not open it or click on any of the attachments, even if you know the name of the person on the From: line.
If you receive an email that contains an attachment that you are not 100% sure is ok, delete it the email.
Should I forward email that contains warnings about viruses to my peers?
No, please check LPL's virus/worm/hoax info web page instead. The vast majority of sensational warning emails are hoaxes. If you are still in doubt after checking the latest hoaxes, please contact LCS staff.
Why do I receive virus email from people at LPL whose computers are not infected?
LPL email addresses are contained in the email address books of thousands, if
not millions, of computers worldwide. When a worm infects a random
machine in the world, it harvests all of the email addresses stored on that
machine and launches email messages to and from those addresses, forging the
From: address. Human recipients tend to infer that these messages were sent by
the user listed in the From: line, from the forged sender's computer. In
reality, these messages could've originated on any computer in the world that
has an address book that contains the actual recipient's and forged sender's
So, whenever a worm infects a computer (anywhere in the world) that contains an address book that contains LPL addresses, someone at LPL might receive forged worm email and might have their address used to forge worm email to other people. Companies, universities, and private parties worldwide are vulnerable to this problem and are contending with it. Given the situation, it's not surprising that experts estimate that millions of Windows computers worldwide are infected with some type of worm.
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