Malware Attack on Skype

I’m used to Skype Spam, but not a malvare-attack.  Here’s what just popped up on my Skype screen:

 Registry Online: URGENT SYSTEM SCAN NOTIFICATION ! PLEASE READ CAREFULLY !!

http://www.updategt.org/

For the link to become active, please click on ‘Add to contacts’ skype button or type it in manually into your web browser !

FULL DETAILS OF SCAN RESULT BELOW
****************************************

WINDOWS REQUIRES IMMEDIATE ATTENTION

ATTENTION ! Security Center has detected
malware on your computer !

Affected Software:

Microsoft Windows Vista
Microsoft Windows XP
Microsoft Windows 2000
Microsoft Windows Server 2003

Impact of Vulnerability: Remote Code Execution / Virus Infection /
Unexpected shutdowns

Recommendation: Users running vulnerable version should install a repair utility immediately

Your system IS affected, download the patch from the address below !
Failure to do so may result in severe computer malfunction.

http://www.updategt.org/

For the link to become active, please click on ‘Add to contacts’ skype button or type it in manually into your web browser!

Now, I don’t ever click on suspicious links (I bet this is a rogue one) from unknown sources, but I’m afraid people might fall for it.  Also, how come Skype allows strande IM’s through when my security setting is “Contacts only” ?   And of course if you’re not careful enough and follow the request to add the scammer as a contact, then they will get through even easier next time.   Beware: don’t click, Block and Report the sender!