Today's highlights:
- ILOVEYOU virus
- Tell us what you think: ILOVEYOU virus survey
- User virus prevention strategies
- Administrator virus prevention strategies
- Outlook for Macintosh
- Happy birthday to EMO
Regular features:
- New Slipstick site features
- New utilities
- Updated utilities
ILOVEYOU virus
The ILOVEYOU aka LoveBug aka VBS/LoveLetter virus propagates via
Outlook 98, Outlook 2000 and Internet Relay Chat with a .vbs
(VBScript) file payload. It is quite destructive. I feel like we
need to dispel some common misconceptions about this virus:
Misconception #1: The virus spread because Outlook opens
attachments automatically: No mail program would offer the feature
of opening attachments automatically, because that's a sure way to
spread viruses. Some people who opened the ILOVEYOU attachment may
wish they could blame their infection directly on Outlook, but this
particular virus spreads only if a person explicitly chooses to open
the attachment.
Misconception #2: A rule or server application to block
messages with particular text will make you safe from this virus:
Many variants have emerged with different subject lines and
different .vbs attachments. Filtering by subject is not an effective
protection strategy.
Misconception #3: Only computers running Outlook are
affected: While the ILOVEYOU virus spreads mainly through Outlook,
running it destroys files on any computer using the Windows
operating system.
Cleaning a machine infected with ILOVEYOU requires many changes.
We've put together this summary:
How to Recover from the ILOVEYOU (VBS-Loveletter) Virus
http://slipstick.com/problems/fixloveletter.htm
If you want to read more about ILOVEYOU, how it works and what it
does, we've found these links to be the most helpful:
CERT Advisory
http://www.cert.org/advisories/CA-2000-04.html
F-Secure Computer Virus Information Pages
http://datafellows.com/v-descs/love.htm
Woody's Office Watch special report
http://www.woodyswatch.com/office/archtemplate.asp?v5-n21
For information on other viruses that can affect Microsoft
Outlook, see:
Viruses Affecting Microsoft Outlook
http://www.slipstick.com/problems/virus.htm
Tell us what you think: ILOVEYOU virus survey
Perhaps we all share the blame for the wild spread of the
ILOVEYOU aka LoveBug aka VBS/LoveLetter virus and all its variants
-- users for opening unsolicited attachments, mail administrators
for not blocking certain types of files from e-mail messages,
company executives for not requiring training on e-mail security
issues, Microsoft for making it easy to create scripts that automate
other programs, and those of us in the media for not warning you
strongly enough.
I'd like to know what you're doing about it -- both users and
administrators -- and what you think Microsoft should do. We've
posted a survey for you to fill out at http://www.slipstick.com/problems/lovesurvey.htm
and included a place for you to sound off with your general comments
on the ILOVEYOU virus.
User virus prevention strategies
Is your computer fortified against virus invasions via Outlook?
You should take these precautions:
- Install the Outlook Attachment Security Update for your
version of Outlook:
Outlook 2000
http://officeupdate.microsoft.com/2000/downloadDetails/O2Kattch.htm
Outlook 98
http://officeupdate.microsoft.com/downloadDetails/O98attch.htm
Outlook 97
http://officeupdate.microsoft.com/downloadDetails/O97attch.htm
You'll see a button on the Tools | Options | Security dialog
for Attachment Security. Make sure the option is set to High.
This setting prevents you from opening many attachments directly
from an e-mail message or from the preview pane. You must first
save the attachment to your hard drive.
Download and install all the updates that address
HTML mail vulnerability. Outlook shares HTML mail components
with Internet Explorer, so you won't find these updates on the
Office Update download site. We maintain a list at http://www.slipstick.com/outlook/htmlmail.htm.
Run an anti-virus program on your computer. See
http://www.slipstick.com/addins/antivirus.htm for those that
work directly with Outlook mail folders. Others will be able to
scan attached files once you save them outside of Outlook.
- Increase the security for HTML mail in Outlook 98 and Outlook
2000 l by following these steps:
- Use Tools | Options | Security to set the security zone for
Outlook HTML mail to Restricted Sites.
- Click the Zone Settings
button, then OK.
- Select Custom, and then click the Settings
button.
- On the Security Settings dialog box, choose Disable
for
all options under ActiveX Controls and plugins and Scripting.
- Click OK three times to save the updated security
settings. .
- Never open an unsolicited attachment, no matter how well you
know the sender.
See http://www.slipstick.com/outlook/antivirus.htm
for more virus
protection ideas.
Administrator virus protection strategies
Organizations that have never connected a virus scanner to their
e-mail server may find it easy to fund that software this week. Many
companies that had server software set to reject .vbs file
attachments avoided the virus completely. Some server-based virus
scanners include attachment filtering. Separate programs to filter
attachments and perform other content control functions are also
available. We maintain two lists at:
On the Anti-virus page, you'll also find links to Microsoft's
tools for purging virus payload messages from Exchange Server
mailboxes.
In addition, early notification can be a key factor in
controlling a virus outbreak. Administrators subscribed to the main
Exchange administrator list (http://ls.swynk.com/scripts/lyris.pl?site=swynk.com&page=topic&topic=exchange&text_mode=0)
or our Outlook users list (http://www.egroups.com/group/outlook-users/
or mailto:outlook-users-subscribe@egroups.com) got early warnings about
the virus and quick reactions on how to stop it and clean up
infected machines.
Outlook for Macintosh
Outlook for Macintosh 8.2.2 for Exchange Server users is now
available for download from Microsoft's FTP site at ftp://ftp.microsoft.com/bussys/exchange/exchange-public/fixes/Eng/Exchg5.5/SP3/MAC/.
See
ftp://ftp.microsoft.com%20/bussys/exchange/exchange-public/fixes/eng/exchg5.5/sp3/mac/readme.txt
for details on installation instructions and bug fixes.
Microsoft has also published an update on the next version of
Outlook for Macintosh, codenamed "Watson," at http://www.microsoft.com/mac/Exchange/default.asp. Don't confuse
this with the PIM program promised for the next version of Microsoft
Office for Macintosh. "Watson" will be a separate program
for Exchange Server users.
Happy birthday to EMO!!
With this issue, we begin our fifth year of publishing Exchange
Messaging Outlook to provide information to Outlook and Exchange
users and developers and the administrators who support them. The
newsletter has more than 2,200 subscribers in at least 44 countries.
You may have noticed that we have been a bit more regular and
frequent in our publication schedule lately. That's a sign of more
good things to come in EMO. Stay tuned.