"Hey check this out..."
What really happens when you click on a link in an instant messenger program
You've just clicked on a link you received from your buddy via an instant messaging program (AIM, MSN, etc.). What happens next? Unfortunately a lot more than you may think.
Once you click on that link, your computer will automatically download and run malware, which is malicious software specifically designed to damage or disrupt your operating system (much like a virus or Trojan). From this point, your computer is no longer responding to your commands.
Your computer will then automatically log into IRC (Internet Relay Chat), and will respond to commands from the virus’ creator, including where to search for new malware. More malware will be downloaded and installed, and your computer is now sending that “Hey check this out” message to all of the buddies in your messenger client. In addition, your computer is also infecting other computers by scanning them, sending out a steady stream of spam and viruses, and attacking other machines. By now, your computer is no longer operating or responding the way you would expect it to, as it is too busy infecting other computers
At this point, your port has been disabled by the IT Security Office, to stop further spread of malware on the campus network. In order to use your machine again, you will be required to do a full reformat (causing you to lose everything on your computer) and completely reinstall your operating system and applications.
And the Moral of the Story?
Think twice before clicking on any links in instant messaging programs, even if they appear to come from people you know. In addition to saving you from temporary loss of network connectivity, it can also prevent the potential loss of data and privacy, as well as keep you from damaging your friends computers.
If your port has been shut off or you think your computer may have a virus, see the Software Repair and Troubleshooting Service Support Center for services the Help Desk provides.
If you have further questions or concerns, please contact the ITS Help Desk.
Last Updated: 04/24/2008