Seems like it does a lot more than just log keys. Here's a list of features from wikileaks.org/spyfiles/files/0/289_GAMMA-201110-FinSpy.pdf

· Covert Communication with Headquarters

· Full Skype Monitoring (Calls, Chats, File Transfers, Video, Contact List)

· Recording of common communication like Email, Chats and Voice-over-IP

· Live Surveillance through Webcam and Microphone

· Country Tracing of Target

· Silent extracting of Files from Hard-Disk

· Process-based Key-logger for faster analysis

· Live Remote Forensics on Target System