The Windows "Messenger Service" is being exploited to spray the Internet with unsolicited commercial eMail. The receipt of a single UDP packet can cause a "Messenger Service" dialog to pop-up on the user's screen.
It is possible for the sender to "spoof" (falsify) the packet's "Source IP", making these packets impossible to trace back to their origin. If our experience with eMail Spam is any model, we can expect to see a lot more of this in the future.
The Shoot The Messenger application was designed to be a small tool that will display the current status of your system's Messenger Service.
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