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System Requirements

• Operating System: Mac OS X 10.2 or later
  NOTE: ITCS provides support only for Mac OS X 10.3.9 or later.
• Hardware: Power Mac G3 or later
  NOTE: Sophos can run on both PowerPC and Intel-based Macintosh computers.
• Disk Space: 80 MB available
• Memory: 128 MB
• Connection to the Internet. We recommend a high-speed connection for best results.

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What You Are Allowed to Install

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What Sophos Anti-Virus Does

Regular updates. Sophos Anti-Virus keeps itself current, checking hourly for new updates made available by Sophos. It installs new updates as they become available. This happens in the background and does not interfere with your use of your computer.

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Summary of What You'll Need to Do

1. Download the U-M installer for Sophos Anti-Virus from the Blue Disc web site.
2. For added protection, disconnect your computer from the Internet before proceeding with the installation. (As long as there are no known viruses for Macintosh out there, this is not really necessary. However, disconnecting from the Internet during installation of Sophos Anti-Virus minimizes your exposure to hostile code.)
3. Before installing Sophos, uninstall any existing anti-virus software on your Macintosh to prevent conflicts. This includes earlier versions of Sophos Anti-Virus (see Appendix B: How to Uninstall Sophos Anti-Virus at the end of this document for instructions). Check the documentation for your existing anti-virus software or the vendor's web site for information about uninstalling it.
4. Install Sophos Anti-Virus. U-M's installer installs the Sophos Anti-Virus software for you.
5. If you disconnected your computer from the Internet before doing the installation, reconnect it so that you can run AutoUpdate.
6. Run AutoUpdate. This will get you the most current set of virus definitions.
7. Set preferences. We recommend that you set preferences as described in this document. Doing so will ensure the strongest level of protection and ease the trouble-shooting process, should the need arise.
8. Scan your computer for viruses.

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Download the U-M Installer

1. Use your web browser to go to the Blue Disc page:
   http://www.itcs.umich.edu/bluedisc/
2. From the menu of operating systems in the upper right corner of the page, select Mac OS X.
3. At the U-M Authentication Required page, log in with your uniqname and UMICH Kerberos password.

   

4. Find Sophos Anti-Virus in the list of software available for Mac OS X, then click the Download link to the right of it.
5. Some web browsers may ask you whether you want to open the file or save it to your computer. Select the Save option. You may be notified that the file being downloaded contains an application and asked if you want to continue downloading. If so, select Continue.
6. The installer will be downloaded to your desktop (unless you have specified that it be downloaded elsewhere).
7. If you are using Safari to download the installer, the installer file will mount and open automatically. If you are using another web browser, you will likely need to double-click the downloaded Sophos_Anti-Virus_U-M.dmg file to decompress it.

   

8. The installer disc image will appear on your desktop.

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Install Sophos Anti-Virus

Before installing Sophos, uninstall any existing anti-virus software on your Macintosh to prevent conflicts. Check the documentation for your existing anti-virus software or the vendor's web site for information about uninstalling it.

IMPORTANT! If you installed an earlier version of Sophos and want to reinstall it, we recommend that you first remove the older version. See Appendix B: How to Uninstall Sophos Anti-Virus at the end of this document for instructions.

1. Safari users can go on to Step 2. Those who use other web browsers may first need to double-click the Sophos Anti-Virus U-M installer disc image.

   

2. In the disc image window, double-click the Sophos Anti-Virus icon.

   

3. In the dialog box that opens (this may take a few seconds), click Continue.

   

4. In the Welcome to the Sophos Anti-Virus Installer window, click Continue.

   

5. In the Important Information window, read the notes in the scrollable window, then click Continue.

   

6. In the Select a Destination window, select your startup volume (if it is not already selected) and click Continue.

   

7. In the Easy Install window, click Install.

   

8. You will be prompted for a name and password to authorize the installation of software on your machine.

   Use a Macintosh administrator user name and password—the same name and password you use when you install any software on your Macintosh computer. You must have administrator privileges on your computer to authorize installation of software.

   

9. Sophos Anti-Virus will be installed. When you see The software has been successfully installed, click Close.

   

10. Close the disc image window by clicking the red dot in the upper left corner.
11. Find the Sophos Anti-Virus U-M disk image and the Sophos_Anti-Virus_U-M.dmg file on your desktop, and drag them to the Trash. Also, be sure to eject any CD or DVD from your CD/DVD drive before launching Sophos.

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Run Auto-Update

Run Sophos's AutoUpdate to get the most recent version of the Sophos program and its virus definitions. The first time you run AutoUpdate, the process may take 10 minutes or more to complete. Subsequent updates will be much faster; they will run in the background automatically, and you likely won't even notice when they happen. AutoUpdate checks for new updates once an hour and installs them when they are available.

1. Click the Sophos icon in the menu bar (in the upper right corner of your desktop) and select Update Now.
   NOTE: If you see Cancel Update instead of Update Now, that means that AutoUpdate is already taking place. Sophos checks for updates hourly, and, depending where it is in its update cycle, it may begin an update on its own before you request one.

   

2. Sophos Anti-Virus will connect to the Sophos server and check for updates. It will then download and install any new updates it finds.
3. AutoUpdate will report when it finishes updating.

   

4. Close the Sophos AutoUpdate Status window.

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Set Preferences

NOTE: If you are interested in knowing why these preferences are recommended, as well as seeing a list of the preferences pre-set for you during installation, see Appendix A: More Detail About Sophos Anti-Virus Preferences.

1. Eject any CDs or DVDs from your CD/DVD drive. (This prevents Sophos from listing the item as a volume to be protected from viruses.)
2. Click the Sophos icon in the menu bar, and select Open Sophos Anti-Virus.

   

NOTE: Do not select Open Preferences; this opens a different set of options for a part of Sophos Anti-Virus—the on-access scanner—that has already been configured for you by the U-M installer.

3. In the Sophos Anti-Virus window, click the Preferences button (looks like a sheet of paper with a checklist on it).

   

4. In the left column of the Immediate Scanning Preferences window, click Scanning Options, then make sure all three checkboxes are checked.

   

5. In the left column, click Reporting. Then check both the Enable reporting and List infected files only checkboxes. Sophos will fill in a Report Filename name and a pathname for you; do not change this text.

   

6. Quit Sophos Anti-Virus by selecting Quit Sophos Anti-Virus from the Sophos Anti-Virus menu.

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Scan Your Computer for Viruses

1. Empty your computer's Trash. If you don't, Sophos will scan everything in the Trash, and the scan will take longer.

   Also eject any CDs or DVDs from your CD/DVD drive. (This prevents Sophos from permanently listing the item as a volume to be protected from viruses.)

2. Click the Sophos icon in the menu bar, and select Open Sophos Anti-Virus.

   

3. Check that your computer's hard drive and any other attached drives you want to scan are selected; selected items have a green circle to their left. Click the circle to select or deselect the item for scanning. Be sure you have selected only those items that you want to scan.

   

HINT: If your computer is connected to any network servers, they will appear in the list of items to be scanned. Be sure to deselect them so they don’t get scanned.

4. Click the Scan button (a green triangle). Scanning will begin immediately; it may take several hours to complete. You can use your computer while the scan is being done.

   

IF SOPHOS GETS STUCK: If Sophos appears to "hang," or get stuck on a particular file during the scan, please phone the ITCS consultants at (734) 764-HELP for assistance.

5. When the scan is complete, Sophos will report what it found.

   

6. To see further information about what Sophos detected, click the Details triangle.

   

   ABOUT ERRORS: Sophos Anti-Virus cannot scan all files. For example, it cannot open private files, and it cannot scan encrypted files. It may report these as errors. You can ignore these error messages. For example, some Microsoft Office application files are encrypted, and Sophos returns error messages such as this when it tries to scan them:

   

   IF SOPHOS FINDS A VIRUS: If Sophos detects a virus on your computer, please send e-mail to the U-M Virus Busters Team (virus.busters@umich.edu) for further assistance. Include with your message, as an attachment, the SAV Report.rtf file that will appear on your computer Desktop after the scan is complete. (Please do not send the Sophos Anti-Virus Log.rtf file, which is a cumulative log of all scans.)

7. Quit Sophos Anti-Virus. (From the Sophos Anti-Virus menu, select Quit Sophos Anti-Virus.)

You need only do a complete scan once, soon after installing Sophos Anti-Virus. Sophos will check all new files for viruses when you access them. The Virus Busters suggest, though, that it would be prudent to do an occasional scan of your computer just to be on the safe side.

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Check Periodically to Make Sure AutoUpdate Is Happening

If Sophos Anti-Virus is unable to complete either a manual update or its routine hourly update at any time, the icon in the menu bar will display a small "x."

In most cases, failure to update is caused by a temporary glitch in your network connection. Try running the AutoUpdate manually (see Run Auto-Update). If the problem was a brief network interruption, the update will likely work the next time you try it.

Here are some additional things to try to get Sophos AutoUpdate working:

• Check your firewall. If your firewall is blocking Port 80, AutoUpdate will not be able to run (although manual updates will still work fine).
• Make sure your computer's clock is set to the correct time. (Otherwise, it may be out of synchronization with the clock on the Sophos server.)
• Restart your computer and then run the AutoUpdate.

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Additional Resources

1. Click the Sophos icon in your menu bar.
2. From the menu that appears, select Open Sophos Anti-Virus.
3. From the Help menu, select Sophos Anti-Virus Help.

Visit ITCS's Information System to obtain ITCS computer documentation and other resources.

We welcome your comments; please send e-mail.

ITCS's Online Help Desk provides a variety of computing help resources.

The Virus Busters web site (http://virusbusters.itcs.umich.edu/) provides information about computer viruses.

For further help with Sophos Anti-Virus, send e-mail (to the Virus Busters Team)..

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Appendix A: More Detail About Sophos Anti-Virus Preferences

On-Access Scanner Preferences

We recommend that you not change the on-access preferences. These are the U-M default settings:

• Scanning Options
  Detect non-Macintosh viruses:  checked
  Scan network volumes:  checked
  Scan inside archive and compressed files:  not checked
• Disinfection
  Enable disinfection:  checked
  Action on infected files:  Move

• Desktop Alerts
  Enable desktop alerts:  not checked
• Logging
  Logging into system log:  not checked
  Logging into a file:  checked
  Location:  "Logs" on volume <your hard drive>
  File name:  Sophos Anti-Virus On-access Log.txt

On-Demand Scanner Preferences

These are the U-M recommended settings (most are the default settings; others are those listed in the Set Preferences section of this document):

• Scanning Options
  Archive files:
  Scan inside archive and compressed files:  checked
  Scan mailboxes:  checked

  Detect non-Macintosh viruses:
  Include non-Macintosh virus detection:  checked

• Disinfection
  Enable Disinfection:  not checked
  Confirm Disinfection:  checked
  Action On Infected Files:  Delete

  NOTE: We recommend, for safety's sake, that you not try to disinfect after the initial scan without first contacting Virus Busters (virus.busters@umich.edu) or your departmental computing support staff for advice on how best to proceed.

• Reporting
  Enable reporting:  checked
  List infected files only:  checked
  Report Filename:  SAV Report
• Desktop Alerts
  Enable Desktop alerts:  checked
  Viruses radio button selected
• Log File
  Location of the log file is the desktop
  Editor:  TextEdit

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Appendix B: How to Uninstall Sophos Anti-Virus

1. Navigate to the Sophos uninstaller. On your hard drive, open the Library folder, then the Application Support folder, then the Sophos Anti-Virus folder. The uninstaller is called Remove Sophos Anti-Virus.pkg.

   

2. Double-click the Remove Sophos Anti-Virus.pkg file.
3. In the welcome window, click Continue.

   

4. In the Select a Destination window, make sure the drive on which Sophos is installed is selected. Then click Continue.

   

5. In the Easy Install window, click Install.

   

6. You will be prompted for a name and password to authorize the installation of software on your machine.

   Use a Macintosh administrator user name and password—the same name and password you use when you install any software on your Macintosh computer. You must have administrator privileges on your computer to authorize installation of software.

   

7. The uninstaller will run.
8. You will see conformation that the uninstaller has run successfully. Click the Close button. Sophos will no longer be installed on your computer.

   

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