Active Links in Windows Live Messenger 2009 'Temporarily Turned Off' to Prevent Malicious Worm, Microsoft

Microsoft has temporarily disabled active links for Windows Live Messenger 2009, in order to prevent users from malicious worm (a self-replicating computer virus). The worm spreads by inserting a link into an IM conversation with a person whose computer is already infected. When someone clicks the link, it opens in a browser, downloads the worm […]

Microsoft has temporarily disabled active links for Windows Live Messenger 2009, in order to prevent users from malicious worm (a self-replicating computer virus). The worm spreads by inserting a link into an IM conversation with a person whose computer is already infected. When someone clicks the link, it opens in a browser, downloads the worm on the recipient's computer, and then repeats this process.

Because links are active links blocked in Messenger 2009, starting today, some customers may also see a following notification in the main Messenger window warning them that some features mightn't be available.

WLM 2009 worm notification

This's a fairly common way for infections to spread, and on a network as big as Live Messenger such worms can spread in a big hurry. Shutting down active links -- where URLs are automatically turned into clickable links in chat windows -- is a good first step, and will keep WLM 2009 users safe while Microsoft works on a permanent fix.

If you're running Live Messenger 2009, this might be a good time to consider upgrading to latest 2011 version.

[Source]