Stration worm
There are news about the Stration Worm, which spreads itself using Skype and can migrate to other networks, like MSN and ICQ. That's very interesting, specially because it's quite aligned to what I presented on Black Hat Europe this year. Although I was talking about botnets, some of the trends apply to all kinds of malware. Now, using several communication channes is not a theoretical thing only, it's fact.