that I linked to. It is pretty deep, even for me. They make a bald faced challenge to Zeus and its variants! That being Prevx, not LastPass of course.
I mentioned LastPass because some malware are not as sophisticated, and rely on keyboard signals and other browser or video activity to grab the customer's data. Where as LastPass provides it encrypted until the point of form entry.
I repeat the link here:
http://pxnowa.prevx.com/zerol/immunity.pdf