Well worth reading. Really.
Russian malware authors are finding new ways to steal and profit from data which used to be considered safe from thieves because it was encrypted using SSL/TLS. Originally, this analysis intended to provide insight into the mechanisms used to steal that data, but it became an investigation into the growing trend of malware sold not as a product, but as a service. Eventually it lead to an alarming find and resulted in an active law enforcement investigation.
(Hat tip to Richard Smith)