Re: Nope, Teamviewer is the tool, not the source
I just read about what the "teamviewer trojan" is - seems that they were not just bundling Teamviewer with the malware, they seem to have exploited its functionality in a certain way to facilitate their hack:
http://vms.drweb-av.de/virus/?_is=1&i=8161714
Including hiding any obvious presence of Teamviewer on PCs so compromised machines are less obvious.
Perhaps its time for Teamviewer to add countermeasures to their code to make it harder to hijack it in this way.