What agency issued a digital signature for the Cryptowall 2.0 ransomware virus?
Is it too early to tell? As far as I know this is how Microsoft planned to prevent malware, by adding a digital certificate to the BIOS, or to any of the programs that get loaded on a Windows machine.
As far as I know, the malware is smart enough to delete all of the browser history on the day the system is attacked; which makes it impossible (from the desktop at least, maybe not from the router) to figure out what IP it came from.
But a digital certificate is only as good as the company that issues them; if there's human-corruption within that company then our data is all doomed.
Who signed Cryptowall 2.0?