Yeah, I'd put it down to the processor having trouble rendering a lot of Visual C++ programs at once, and just a random crash. This can happen in MSN Messenger if you are running a lot of process heavy applications or if it is under a lot of extreme process requirements. The odds of it being a hacking attempt are not even worth worrying about in this case.
To protect against this happening you could try downloading a recent BETA from Microsoft for the Visual C++ Runtime Package, it seems to be a very stable BETA and updated to be more resistant to these bugs.
Click here to download. Just be careful to get the correct one for your version of Windows, it is explained there. Please note it is a BETA, so it could easily cause bugs that aren’t fully known about. Also it may not fully stop this problem from happening; it could be fully to do with the hardware in your computer, and its ability to process information.