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INFORMATION SECURITY

 
 

What about file attachments?


Overview
File attachments are the new 'targeted attack' approach used by those who would exploit the naive user.  In particular, as layered network defenses become more effective, individual users are attacked via email messages with application based attacks.  Recently (Oct 11, 2006), Microsoft patched several vulnerabilities in the applications PowerPoint, Word, and Excel, which would create


Clicking links in email

These can be the preludes to

phishing scams
viruses in email attachments
application specific attacks- word, powerpoint

Instant messaging

There are now numerous attacks via instant messaging, usually as 'links' or attachments to pictures.  You should never install files or programs via IM links.  Most install trojans which can be further exploited.

AOL IM attack- The W23/Lamo worm came into being as an AOL IM work


In purchased software or appliances

Some recent stories about trojan programs being delivered in commercial software or on devices.  McDonalds, in a promotion campaign, gave out 10,000 MP3 players as prizes, but they also had a variant of a spyware trojan on them.  This trojan affected any Windows PC to which the MP3 player was connected.  The same issue has just happened with some  Apple Video iPods, which had been shipped with the Rjump virus, again infecting Windows PCs.

What should you do?
Some basic preventions are:

Run as a user account, not an administrator account.

Ensure your AntiVirus from http://software.case.edu is installed and updated.

Be aware of the threat from file attachments.