I have been getting warning emails about the same, and I guess there may be some amount of truth in them.

I received quite a few scraps from pals with this content. None of them know Portuguese.
The scrap was:

Opa, tudo bom? Eu criei um vídeo com uma seleção de minhas fotos novas, clica aí pra ver – http://mmgurl.com/M7U – Estão bem legais!!!

When I once tried to visit the link it asked me to download something (which I didn’t). Other time led me to a proxy server.

I wasn’t able to check if it actually was a virus, but I suggest not downloading any such file. Immediately delete the scrap if you are sure your friend doesn’t speak Portuguese, or if he/she doesn’t even know about the scrap.

I’m not sure how the scraps actually get placed. Possible computer infection? Or a problem with the Orkut server? Or is it a hoax?

Came across this which got me thinking.

I know how irritating it can be to be infected by either a virus, trojan or spyware.

I remember a time several years back when I was less computer literate than I am today and didn’t really bother much about security and privacy online.

I remember downloading software from the internet without even checking to see if they were spyware infected or not.

Must say I was always away from virii, except one instance, but was saved when ZoneAlarm popped up a warning about a program in the Recycle Bin trying to access the net!

However, as I became more aware, I realized the importance on privacy online.
Soon I got hold of Adaware and later on Spybot and soon afterwards Spyware Blaster.
Today the only privacy problems I face are cookies.

For browsing the internet I use Firefox or Maxthon or Opera, which in some extent helps protect my privacy.

Also have ZoneAlarm and AVG running on high protections. The free versions do a pretty good job.

Well, I’m relatively safe today. However, in case you feel your PC is infected, then MajorGeeks Forum has this post which will definitely solve your problem

It is a very detailed guide. I haven’t tried it myself, since I don’t have the need for it.
However, I am very sure it will clean your infected PC thoroughly.